by Wt oe le Li nay ’ ‘ 1 fae yteen hace WE aes eae thalety rai? ie att aes Ath ¥ askta sy bes tidinet Yoh, ‘tity Wi {At At ert sped ity ies ’ aval TK ‘ Hyeae et Ne) foe ‘Wit Lab gies by tt es Vee * filly eh 4 aia he Inet 1M Lien hat saenneds 45 i ASS tid avert Ate 7 it ua \ ual MAS i) hy basen Stall \ ed idhaned: ce t h Saltire OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE VOLUME 5 Edited by FRANCIS HEMMING, c.M.G., C.B.E. Secretary to the International Commission on Zoological Nomenclature LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 (All rights reserved) \) INTERNATIONAL COMMISSION ON Yo. ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE OPINIONS PUBLISHED IN THE PRESENT VOLUME A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCcO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PeTers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. nee E. Voxes (United States Geological Survey, Washington, D.C., .S.A.). Class 1955 Professor Dr. Hilbrand BoscHmMaA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LemMcue (Kgl. Veteriner- og Landbohojskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsourR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Rizey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). pee eal L. UsINGER (University of California, Berkeley, California, S.A.). IV INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE (continued) D. The Staff of the Secretariat of the Commission Honorary Secretary : Mr. Francis Hemming, C.M.G., C.B.E. Honorary Personal Assistant to the Secretary: Mrs. M. F. W. Hemming Honorary Archivist : Mr. Francis J. Griffin, A.L.A. Administrative Officer : Mrs. S. C. Watkins, M.A. {wi J. H. Newman Secretariat : Mrs. Prudence Goldman Mrs. E. M. Lewis Indexer : Miss Joan Kelley, B.Sc. Translator : Mrs. R. H. R. Hopkin INTERNATIONAL TRUST FOR ZOOLOGICAL NOMENCLATURE Chairman : The Right Hon. Walter Elliot, C.H., M.C., F.R.S., M.P. Managing Director and Secretary : Mr. Francis Hemming, C.M.G., C.B.E. Publications Officer: Mrs. C. Rosner ADDRESSES OF THE COMMISSION AND THE TRUST Secretariat of the Commission: 28 Park Village East, Regent’s Park, London, N.W.1. Offices of the Trust : 41 Queen’s Gate, London, S.W.7. FOREWORD The present volume—the fifth of the series entitled Opinions and Declarations rendered by the International Commission on Zoological Nomenclature—contains the third instalment of Opinions embodying decisions taken by the International Com- mission on Zoological Nomenclature at its Session held in Paris in 1948. The Opinions in question are Opinions 240 to 268. The present volume comprises 440 pages (T.P.—XIV, 1—426), 4 plates and three facsimiles reproduced as text figures. 2. Of the twenty-nine Opinions included in the present volume one deals with names belonging to two different Classes of the Animal Kingdom, thus bringing the total number of cases up to thirty. Many of the applications relating to these cases were submitted by two or more applicants—in one case by six appli- cants—and when account is taken of this fact, the total number of applicants is seen to amount to forty-five. 3. Six of the applications dealt with in the present volume were concerned with the status of books and the remaining twenty-four with individual names. Of this latter group, nineteen (79 per cent.) involved the used by the Commission of its Plenary Powers. The use of these Powers was not involved in any of the applications relating to the status of individual books. 4. The twenty-four applications relating to individual names dealt with in the Opinions published in the present volume, when grouped by reference to the Classes of the Animal Kingdom to which the genera or species concerned belong, are distributed as shown in the following table. In the same table the applications are arranged so as to distinguish those which involved the use of the Commission’s Plenary Powers from those which did not, VI TABLE 1 Distribution of applications (a) by Classes of the Animal Kingdom and (b) by whether they involved the use by the Commission - of its Plenary Powers Number of applications Name of wn Class Involving the use of the Others Plenary Powers Sporozoa Crustacea Insecta Bryozoa Actinopterygii Reptilia Totals 5. When the forty-five applicants are arranged by reference to the countries in which they are resident, applications are seen to have been received from the following countries (arranged in alphabetical order) :— TABLE 2 Distribution of applicants by country of residence Country of Residence | Number of Applicants Brazil Israel New Zealand United Kingdom United States of America Total Vil 6. Under the Rulings given in the Opinions comprised in the present volume, 17 names were placed on the Official List of Generic Names in Zoology and 26 names on the Official List of Specific Names in Zoology. In the same Opinions, 5 names were placed on the Official Index of Rejected and Invalid Generic Names in Zoology and 6 names on the Official Index of Rejected and Invalid Specific Names in Zoology. Finally, in the same Opinions, the titles of two works were placed on the Official List of Works Approved as Available for Zoological Nomenclature and the titles of seven works on the Official Index of Rejected and Invalid Works in Zoological Nomenclature. 7. The twenty-four Opinions dealing with individual names published in the present volume contain forty-five comments received from interested specialists. In addition, eight comments were received in regard to the applications relating to the status of books. 8. If the comments relating to individual names are grouped according to the Class in the Animal Kingdom to which the genus or species concerned belong, the distribution of the com- ments is found to be as follows :— TABLE 3 Distribution of comments on applications relating to individual names, by Classes of the Animal Kingdom Name of Class Number of Comments Sporozoa Crustacea Insecta Bryozoa Actinopterygii Total Vill 9. When the authors of the comments on individual names dealt with in the Opinions published in the present volume are grouped by reference to their country of residence, the distribution is found to be as follows :— TABLE 4 Distribution of comments on applications relating to individual names, by country of residence of the specialists concerned Country of Residence | Number of comments Brazil Denmark Panama United Kingdom United States of America Union of Soviet Socialist Republics Total 10. As in the case of the two preceding volumes of this Series, the Commission is indebted to Miss Joan Kelley, B.Sc. for the preparation of the indexes to the present volume. In style these indexes follow exactly the model laid down for earlier volumes. 11. At the time of writing the present Foreword, the whole of the following volume (vol. 6) and a part of volume 8 are already in proof, while volume 7 is in the hands of the printers. Volumes 6 and 7 contain the last instalments of Opinions embodying decisions taken by the International Commission on Zoological Nomenclature at its Session held in Paris in 1948. Volume 8 contains the first instalment of Opinions embodying decisions taken by the Commission in 1952 on applications published in 1951 in volume 2 of the Bulletin of Zoological Nomenclature. IX This latter volume will be of particular interest, since, unlike those containing Opinions embodying decisions taken by the Commission in Paris and subsequently published in the Official Record of the Proceedings of the Commission at its Paris Session, the Rulings contained in the Opinions included in volume 8 will be published for the first time in that volume. 12. The fact that the Opinions included in the present volume were all published within so short a period as two and a half months is evidence once again of the long hours of hard work devoted to the Commission by my assistants and of the efforts made by the printers to keep pace with the flow of work reaching them from this Office. To both of these the Commission and zoologists at large are alike greatly indebted. FRANCIS HEMMING Secretary to the International Commission on Zoological Nomenclature 28 Park Village East, Regent’s Park, LONDON, N.W.1. 10th August 1954. TABLE OF CONTENTS OPINION 240 Correction of an erroneous entry in the Official List of Generic Names in Zoology relating to the type species of the nominal genus Mabuya Fitzinger, 1826 (Class ae ee of an error in Opinion 92) : : : ie ne OPINION 241 Rejection for nomenclatorial purposes of Nozeman & Vosmaer, 1758 Geslachten der Vogelen, a Dutch translation of Moehring’s pre-Linnean work entitled Avium Genera published in 1752 OPINION 242 Designation, under the Plenary Powers, of a type species for Echeneis Linnaeus, 1758 (Class Pisces) in harmony with accustomed nomenclatorial usage (correction of an error in Opinion 92) .. OPINION 243 Designation, under the Plenary Powers, for the nominal genus Carabus Linnaeus, 1758 (Class Insecta, Order Coleoptera) of a type species in harmony with current nomenclatorial usage . OPINION 244 Suppression, under the Plenary Powers, of the generic name Coriscus Schrank, 1796, for the purpose of validating the generic name Alydus Fabricius, 1803 (Class Insecta, Order Hemiptera) OPINION 245 Designation, under the Plenary Powers, of a type species for the nominal genus Salda Fabricius, 1803 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage be OPINION 246 Designation, under the Plenary Powers, of a type species for the nominal genus Gastrodes Westwood, 1840 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage OPINION 247 Designation, under the Plenary Powers, of a type species for the nominal genus Aquarius Schellenberg, 1800 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage . . XI Page 13 08) 45 2// 71 81 1 XU OPINION 248 Designation, under the Plenary Powers, of a type species for the nominal genus Bellocoris Hahn, 1834 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage ne OPINION 249 Designation, under the Plenary Powers, of a type species for the nominal genus Beosus Amyot & Serville, 1843 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage OPINION 250 Designation, under the Plenary Powers, of a type species for the nominal genus Catoplatus Spinola, 1837 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage OPINION 251 Designation, under the Plenary Powers, of a type species for the nominal genus Dictyonota Curtis, 1827 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage OPINION 252 Designation, under the Plenary Powers, of a type species for the nominal genus Oncotylus Fieber, 1858 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage OPINION 253 Designation, under the Plenary Powers, of a type species for the nominal genus Pachylops Fieber, 1858 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage ae OPINION 254 Designation, under the Plenary Powers, of a type species for the nominal genus Pilophorus Hahn, 1826 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage E OPINION 255 Designation, under the Plenary Powers, of a type species for the nominal genus Tetyra Fabricius, 1803 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenciatorial usage fe Page 103 115 127 139 itsy | 163 IWS 187 OPINION 256 Emendation to Phlebotomus of the generic name Flebotomus Rondani, 1840 (Class Insecta, Order Diptera) under the Plenary Powers of OPINION 257 Rejection for nomenclatorial purposes of the work by Zimmermann (A. E. W. von) published in 1777 under the title Specimen Zoologiae geographicae Quadrupedum Domicilia et Migrationes sistens and acceptance for the same purposes of the work by the same author published in the period 1778—1783 under the title Geographische Geschichte des Menschen, und der allgemein verbreiteten vierftissigen Thiere. . OPINION 258 Rejection for nomenclatorial purposes of the work by Frisch (J. L.) published in 1775 under the title Das Natur-System der vierfiissigen Thiere. . OPINION 259 Rejection of the names used by Mark Catesby in the Natural History of Carolina, as re- published by Edwards in the edition of 1771, but acceptance of names formed in accordance with the Linnean system inserted by Edwards in that edition. . OPINION 260 Rejection for nomenclatorial purposes of the work by Meuschen (F. C.) issued in 1778 under the title Museum Gronovianum .. ae OPINION 261 Rejection for nomenclatorial purposes of the Index to the Zoophylacium Gronovianum of Grono- vius prepared a Meuschen Se oe and Ue in 1781 ; OPINION 262 Determination of the specific name of the Sand Crab (Opinion in replacement of Opinion 13) .. OPINION 263 Designation, under the Plenary Powers, of a description to represent the lectotype of the nominal species Papilio podalirius Linnaeus, 1758 (Class Insecta, Order Lepidoptera) XU Page 199 Bil 245 253 265 281 201, 320 XIV OPINION 264 Designation, under the Plenary Powers, of a figure to represent the lectotype of the nominal species Papilio iris Linnaeus, 1758 (Class Insecta, Order Lepidoptera) OPINION 265 Validation, under the Plenary Powers, of the specific names aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae and ascanius Cramer, [1775], as published in the com- bination Papilio ascanius (Class Insecta, Order Lepi- doptera) OPINION 266 Determination of the species to which the specific name annulatum Dschunkowsky & Luhs, [1906], as published in the combination Piroplasma annulatum (Class Sporozoa, Order Coccidiida) shall be held to apply .. OPINION 267 Rejection of a proposal for the validation, under the Plenary Powers, of the generic name Porina Walker, 1856 (Class Insecta, Order Lepidoptera) by the suppression thereunder of the generic name Porina @Orbigny, 1852 (Class Bryozoa) OPINION 268 Acceptance of the generic name Aspido- proctus (Class Insecta, Creer Hemiptera) as from Newstead, 1901 Corrigenda Index to authors of applications dealt with in Opinions 240 to 268 and of comments on those applications Subject Index .. Particulars of dates of publication of the several parts in which the present volume was published Instructions to binders Page 343 367 387 397 411 413 415 425 426 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- | | NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 1. Pp. 1—12 OPINION 240 Correction of an erroneous entry in the Official List of Generic Names in Zoology relating to the type species of the nominal genus Mabuya Fitzinger, 1826 (Class Reptilia) (correction of an error in Opinion 92) ENN HSONi4 JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 21st May, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THRE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 240 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMoND (University of Toronto, Canada). Dr. James L. Perers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dire eu E. VoKES (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHmMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWsxI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). €C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LeMcHE (Kgl. Veteriner- og Landbohojskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Ribey (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UsINGER (University of California, Berkeley, California, U.S.A.). OPINION 240 CORRECTION OF AN ERRONEOUS ENTRY IN THE “OFFICIAL LIST OF GENERIC NAMES IN ZOOLOGY”’ RELATING TO THE TYPE SPECIES OF THE NOMINAL GENUS ‘** MABUYA ” FITZINGER, 1826 (CLASS REPTILIA) (CORRECTION OF AN ERROR IN ‘“ OPINION ”’ 92) RULING :—(1) The statement that Scincus sloanii Daudin, 1803, is the type species of the genus Mabuya Fitzinger, 1826 (Class Reptilia) made in Opinion 92, when the foregoing generic name was placed on the Official List of Generic Names in Zoology is incorrect and is hereby deleted from the Official List, there being inserted in its place the statement that Lacertus mabouya Lacépede, 1788, is the type species of that genus by absolute tautonymy. (2) The specific name mabouya Lacépede, 1788, as published in the combination Lacertus mabouya, is hereby placed on the Official List of Specific Names in Zoology as Name No. 59. I.—THE STATEMENT OF THE CASE The problem dealt with in the present Opinion came to notice from two different sources: First, Mr. Francis Hemming, Secretary to the International Commission on Zoological Nomen- clature, when examining the older Opinions in the course of preparing the Official List of Generic Names in Zoology for publication in book form, noted, on referring to the original literature, that an incorrect statement had been made in Opinion 92 regarding the type species of the genus Mabuya Fitzinger, 1826 (Class Reptilia), which would need to be corrected before the Official List could be published. Second, at a somewhat later date Senhor Haraldo Travassos (Museu Nacional, Rio de Janeiro, Brazil) submitted a detailed statement on this case for 4 OPINIONS AND DECLARATIONS the consideration of the International Commission. Mr. Hemming’s note and Senhor Travassos’ paper are given in the immediately following paragraphs. 2. Note dated 4th April 1944 by Mr. Francis Hemming, Secretary to the International Commission : On 4th April 1944 the following note by Mr. Francis Hemming, Secretary to the International Commission, was placed on the File Z.N.(G.) 15, in which papers relating to the proposed publication of the Official List in book form were at that time registered :— ‘‘ Mabuya ”’ Fitzinger, 1826 (‘‘ Opinion ”’ 92) By FRANCIS HEMMING (Secretary to the International Commission on Zoological Nomenclature) In checking the entries made in the Official List of Generic Names in Zoology in the Commission’s older Opinions with the object of extracting therefrom the particulars which will be needed when the Official List is published in book form, I have found that an entirely incorrect entry has been made in Opinion 92 (1926, Smithson, misc. Coll. 73 (No. 4) : 3—4) regarding the type species of the genus Mabuya Fitzinger, 1826 (Neue Classif. Rept. : 23) (Class Reptilia). 2. The facts in this case are as follows :— (1) In Opinion 92 it is stated that the type species of Mabuya Fitzinger, 1826, is “ Scincus sloanii Daud., 1803, v. 4, 287.’’, i.e. Scincus sloanii Daudin, 1802, in Sonnini’s Buffon, Rept. 4 : 287. (2) Fitzinger in 1826 did not even place the above species in the genus Mabuya Fitzinger ; on the contrary, he cited it as the sole included species in his new genus Spondylurus Fitzinger, 1826 (Neue Classif. Rept. : Tabl.). (3) Fitzinger included in his genus Mabuya sixteen species, of which the fourteenth is of special interest in the present case. The nominal species in question which is there (: 52) named for the first time, is Mabuya dominicensis. Fitzinger indicated by adding in brackets (parentheses) the words ‘“‘ Lacertus Mabouya La Cépéde ” that the name Mabuya dominicensis was no more than a nom. nov. pro Lacertus mabouya Lacépéde, 1788 (Hist. nat. Quad. ovip. Serpens 1 : Syn. méth.). (4) In view of (3) above, the type species of Mabuya Fitzinger, 1826, appears to be the nominal species Lacertus mabouya Lacépéde, 1788, by absolute tautonymy under Rule (d) in Article 30. OPINION 240 5 3. I have ascertained from Dr. Malcolm Smith (British Museum (Natural History), London) that the strict application of the ordinary provisions in the Régles, that is, the acceptance of Lacertus mabouya Lacépéde, 1788, as the type species of Mabuya Fitzinger, 1826, will not lead to any confusion. J am of the opinion, therefore, that there is no need for the Commission in this case to use its Plenary Powers and that all that is required is a supplementary decision by the Com- mission correcting the erroneous statement in Opinion 92 regarding the type species of this genus. 3. Application submitted by Senhor Haraldo Travassos (Museu Nacional, Rio de Janeiro, Brazil): On 12th December 1945, the Secretary received from Senhor Haraldo Travassos (Museu Nacional, Rio de Janeiro, Brazil) a copy of a paper recently published in Portuguese and English, in which Senhor Travassos had discussed the question of the type species of the genus Mabuya Fitzinger, 1826 (Travassos, August 1945, Bol. Mus. nac., Rio de Janeiro (n.s.) (Zool.) 37 : 1—7). On receipt of this paper, the papers relating to the problem presented by the name Mabuya Fitzinger were separately registered under the Number Z.N.(S.) 203. It was agreed in correspondence between the Secretary and Senhor Travassos that the English text of the latter’s paper should be treated as constituting his application to the International Commission. Senhor Travassos’ application was as follows :— A note on the type species of ‘‘ Mabuya ”’ Fitzinger, 1826 By HARALDO TRAVASSOS (Museu Nacional) Fitzinger in 1826 established within his XII family ‘‘ Scincoidea’”’ the genus Mabuya for a lizard which presents palatal teeth. In addition to this genus, Fitzinger created other genera, among them Spondylurus. In establishing the genus Mabuya, page 23, he did not mention on what species he based his description of the same, as he had done with other genera. On the genus Spondylurus he made the following state- ment: ‘ Daudin’s Scincus sloanei, die einzige bis jetzt bekannte Art dieser Familie, welche Schenkelporen besitzt, ist der Reprasentant meiner Gattung Spondylurus, welche einen vortrefflichen Uebergang zu Tropidosaura aus der Familie der Lacertoiden bildet, und anderer- seits in Mabuya abfallt’’. According to Fitzinger’s statement, the genus Spondylurus can have only one type species, namely Scincus sloanei Daudin, 1803. This is the only species given by the author of the genus ; it is the type species by monotypy. 6 OPINIONS AND DECLARATIONS On page 52, Fitzinger cited the following species : 4. GENUS. Mabuya. Mabuye. 1. M. quinquecarinata. m. Finfkielige M. (Scincus quinque- carinatus. Kuhl.) Ex Asia, India et Insula Java. 2. M. carinata. m. Kielschuppige M. (Scincus carinatus. Daudin.) Ex Africa Promontorio bonae spei. 3. M. multifasciata. m. Vielbanderige M. (Scincus multifasciatus. Kuhl.) Ex Asia, Insula Java. 4. M. trilineata. m. Dreilinige M. (Scincus trilineatus. Daudin.) Ex Africa, meridionali. 5. M. dubia. m. Zweifelhafte M. (Scincus dubius, Schreibers.) Ex Australia, Nova Hollandia. 6. M. capistrata. m. Gezaumte M. (Scincus capistratus, Schreibers.) Ex Africa, Aegypto. 7. M. longicollis. M. Langhalisige M. Patria ignota. 8. M. subcarinata. m. Schwachkielige M. (Scincus subcarinatus. Boie.) Ex Asia, Insula Java. 9. M. vallata. m. Verschanzte M. (Scincus vallatus. Mus. Paris.) Ex Australia, Insula Decres. 10. M. quinquetaeniata. m. Funfbindige M. (Scincus quinque- taeniatus. Lichtenstein.) Ex Africa, Aegypto et Nubia. 11. M. quinquelineata. m. Funflinige M. (Scincus quinque- lineatus. Daudin.) Ex America septentrionali. 12. M. agilis. m. Behende M. (Scincus agilis. Raddi.) Ex America, Brasilia. 13. M. sancta. m. Geheiligte M. (Scincus sanctus. Kuhl.) Ex Asia, Insula Java. 14. M. dominicensis. m. Domingo’sche M. (Lacertus Mabouya. La Cépéede.) Ex America, Insula St. Dominici. 15. M. ocellata. m. Gediugelte M. (Scincus ocellatus. Daudin.) Ex Africa, Aegypto et Europa, Sardinia. 16. M. Serpens. m. Schlangenartige M. (Scincus Serpens Schneider.) Ex Asia, Insula Java. Of the species included in the genus Mabuya, 14 were already known. Fitzinger transferred them to his new genus, making them agree grammatically. To one of these species, the fourteenth, which is mabouya La Cépéde, he gave a new name (M. dominicensis). The two remaining ones are nomina nuda. There are several errors in Fitzinger’s citations, but these are of no importance in the present context. The species which are of interest to us are the second and the fourteenth, respectively: Mabuya carinata (Schneider, 1801) and Mabuya OPINION 240 Tf dominicensis Fitzinger, 1826=Mabuya mabouya (La Cépéde, 1788). Fitzinger cited carinata as of Daudin, but that is not correct. According to the International Rules of Zoological Nomenclature, Article 30 : The designation of type species of genera shall be governed by the following rules, applied in the following order or precedence : II. Cases in which the generic type is accepted not solely upon basis of the original publication : (e)—The following species are excluded from consideration in determining the types of genera : (a)—Species which were not included under the generic name at the time of its original publication. As one may observe the type of Mabuya can only be one of the 16 species which we have seen above, and not Scincus sloanei Daudin, 1803, 4, p. 282, pl. 55, fig. 2 as stated in Opinion 92. That Opinion places the genus Mabuya on the Official List of Generic Names, and cites that same genus without giving the slighest explanation concerning it. The above species cannot be accepted as the type species, since that would be contrary to Article 30. The species of Daudin is the type species of Spondylurus Fitzinger, 1826, as we have seen. Upon perusal of the relevant literature, we find that Dunn, 1936 (p. 534) selected, for the type species of Mabuya Fitzinger, 1826, the species Lacerta mabouya La Cépéde 1788=Mabuya dominicensis Fitzinger, 1826 (n. n.)=Mabuya mabouya (La Cépéde, 1788) Fitzinger, 1826. Dunn established this type species by virtual tautonymy (Article 30, Ill, i). This species can be and is the type species of the genus Mabuya Fitzinger, 1826. Therefore, in accordance with the Code, which is indisputable, the type species accepted as the type species in Opinion 92 (1926) falls to the selection made by Dunn (1936), although the former is the earlier designated. Thus the type species of the genus Mabuya Fitzinger, 1826 is as follows : Lacerta mabouya La Cépéde, 1788 2, p. 378, Tab. 24—Mabuya dominicensis Fitzinger, 1826 p. 52=Mabuya mabouya (La Cépéde, 1788) Fitzinger, 1826. In 1937 Amaral cited the genus Mabuya (p. 203) with the following reference to the type species: ‘“‘“‘ Typo: carinata”’’’. As we were unable to understand Amaral’s selection since we had already seen Dunn’s work, we decided to address ourselves to that author, who 8 OPINIONS AND DECLARATIONS replied as follows: “ “* Fitzinger p. 52 (n. 2) registrou como espécie tipica”’”’. Amaral was referring to carinata. We disagree with Amaral, for, apart from the scientific names, there is only the German word “ Kielschuppige ’’ which bears the following meaning: “ which has a keeled scale’. (See list of Fitzinger’s species). Thus, we conclude that the citation by Amaral 1937 is a lapse. We should like to stress the following fact : even though the Com- mission which drew up Opinion 92 considered the species Scincus sloanei Daudin, 1803, as synonymous with Mabuya dominicensis Fitzinger, 1826=Mabuya mabouya (La Cépéde, 1788), as some authors have done, the citation given in Opinion 92 is incorrect and should not have been used, especially in an Opinion. We consider Daudin’s species as distinct from the species mabouya La Cépéde. We avail ourselves of this opportunity to make a request to all zoologists that every selection of a type species be always accompanied by an indication stating the reason for the preference given to the species concerned: Il—THE SUBSEQUENT HISTORY OF THE CASE 4. The present was one of a number of cases relating to individual names, summaries of which were given in a paper (Paper I.C. (48) 19), prepared by the Secretary for consideration by the International Commission on Zoological Nomenclature at its Paris Session in July 1948. The following is an extract from the above Paper of the portion relating to the present case (1950, Bull. zool. Nomencl. 3 : 136) :— (3) Type of “ Mabuya’’ Fitzinger, 1826 (Class Reptilia) (reference Opinion 92): In Opinion 92 in which the above name was placed on the Official List, the type species of the genus was erroneously cited as Scincus sloanii Daudin, 1803. This was due to a gross piece of carelessness, since the above species was not only not one of the species originally included in Mabuya by Fitzinger but was actually cited by that author in another genus on a different page of the same paper. OPINION 240 9 Actually, Lacertus mabouya Lacépéde, 1788, is the type of Fitzinger’s genus by absolute tautonymy and is so recognised by specialists in this group. It is proposed to correct this mistake in the edition of the Official List shortly to be published. ep eivies, eo) eke fe) ‘ehiijeeee ie (0) Je te I1l.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. The applications submitted in regard to the present case were considered by the International Commission on Zoological Nomenclature at the Thirteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 1730 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, setting out the decision reached by it in the present case at the foregoing meeting (Paris Session, 13th Meeting, Conclusion 4) (1950, Bull. zool. Nomencl. 4 : 356) :— THE COMMISSION agreed :— (1) that the statement that Scincus sloanii Daudin, 1803, was the type species of Mabuya Fitzinger, 1826 (Class Reptilia) inserted in the Official List of Generic Names in Zoology as the result of a mistake in Opinion 92 should be deleted and that in its place there should be inserted a statement that the type species was Lacertus mabouya Lacépéde, 1788, by absolute tautonymy ; (2) to place the trivial name mabouya Lacépéde, 1788 (as published in the binominal combination Lacertus mabouya) on the Official List of Specific Trivial Names in Zoology ; (3) to render an Opinion setting out the decision recorded in (1) and (2) above. 10 OPINIONS AND DECLARATIONS 6. The following are the original references for the names which appear in the decision set out in the immediately preceding paragraph :— Mabuya Fitzinger, 1826, Neue Classif. Rept. : 23 mabouya, Lacertus, Lacépéde, 1788, Hist. nat. Quad. ovip. Serpens 1 : Syn. méth. 7. The decision in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Fifth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 104—105). 8. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 9. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 10. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “‘ specific name” was substituted for the expression “‘ trivial name ” and corresponding changes were made OPINION 240 11 in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 11. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 12. The present Opinion shall be known as Opinion Two Hundred and Forty (240) of the International Commission on Zoological Nomenclature. Done in London this Eleventh day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER. NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 2. Pp. 13—22 OPINION 241 Rejection for nomenclatorial purposes of Nozeman & Vosmaer, 1758 Geslachten der Vogelen, a Dutch transla- tion of Moehring’s pre-Linnaean work entitled Avium Genera published in 1752 AN HSON/4 W JUL 9= 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Three Shillings and Ninepence (All rights reserved) Issued 21st May, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 241 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JorDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). ~ Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PrETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Te E. VOKES (United States Geological Survey, Washiaas: DCs U.S.A Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portuga 1). Professor Harold Kirspy (University of California, Bekele California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Se Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal ' des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor a L. UsINGER (University of California, Berkeley, California, U.S.A.). OPINION 241 REJECTION FOR NOMENCLATORIAL PURPOSES OF NOZEMAN & VOSMAER, 1758 ‘“‘ GESLACHTEN DER VOGELEN”’, A DUTCH TRANSLATION OF MOEHRING’S PRE-LINNAEAN WORK EN- TITLED ‘“‘AVIUM GENERA”? PUBLISHED IN 1752 RULING :—(1) The work published in 1758 under the title Geslachten der Vogelen, consisting of a trans- lation into Dutch by Nozeman & Vosmaer of the work entitled Avium Genera by Moehring (P.H.G.) originally published in 1752 (i.e. before the starting point of zoo- logical nomenclature, as prescribed by Article 26 of the Régles) is not available for nomenclatorial purposes, since Nozeman & Vosmaer did reinforce the names contained therein by adoption or acceptance in the manner first prescribed in Opinion 5. (2) The foregoing work is accordingly hereby placed on the Official Index of Rejected and Invalid Works in Zoological Nomenclature as Work No. 6. I—THE STATEMENT OF THE CASE The question of a possible application to the International Commission to rule against the availability of, or to suppress under its Plenary Powers, the generic names in the Dutch trans- lation of Moehring’s Genera Avium of 1752, prepared by Nozeman & Vosmaer under the title Geslachten der Vogelen and published in 1758 was raised by Dr. James L. Peters (Museum of 16 OPINIONS AND DECLARATIONS Comparative Zoology at Harvard College, Cambridge, Massa- chusetts, U.S.A.), at that time Assistant Secretary to the Inter- national Commission, as follows in a letter dated 23rd October 1937 :— If you should happen to be able to consult a copy of the 1758 edition of Moehring and find that the generic names in it are available, I think that the Commission should publish an Opinion outlawing these names, since the wildest sort of confusion would ensue, were they to be adopted. In this connection I think that it would be a good plan if the Commission should publish a list of approved binary or binominal authors between 1758 and 1800, and then prohibit the use of any authors except those on this list, except where additional names may be added by a subsequent Opinion. 2. It was not found possible at that time to prepare material relating to the Geslachten der Vogelen for submission to the Inter- national Commission, but, following the re-opening of the London Secretariat in 1942 when the records of the Commission, which had been evacuated for safety against air raids at the beginning of the war in Europe in September 1939, were brought back to Headquarters, Mr. Francis Hemming, Secretary to the International Commission, asked Dr. Karl Jordan, then President of the International Commission, to examine the foregoing work, since a copy was available to him in the library of the Zoological Museum at Tring, whereas no copy was at that time available in London, owing to the evacuation of the great scientific libraries to the country for safety. Dr. Jordan kindly undertook this investigation, at the conclusion of which he submitted two Reports, the first dated 19th December 1943, the second, 12th January 1944. These Reports were as follows :— (i) Report dated 19th December 1943 : By KARL JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) I have read the introduction by Vosmaer and the Bericht van den Vertaaler (translator) (Nozeman) in order to find out whether there was anything said about nomenclature. Nozeman says : (my free translation from the Dutch) “ to find the right names in our language OPINION 241 17 as terms for the genera (and geene anderen — and nothing else) which the very learned Moehring has described (aangetekend) has cost me long and sometimes annoying inquiries... .”’ To judge from what I have translated above, Nozeman wanted Dutch names only, and only for genera. The descriptions of the genera begin on p. 9 and the method is as follows :— 1. WARVOGEL, in’t Latyn door den Heere MOEHRING genoemd Collyrio. Hy is by den Heer C. LInNAEus, in Edit. 6 Syst. Nat. Gen. 78 gezet by den Beemer, [Ampelis]. [The square bracket means the name is added by Nozeman.] 3. GROOTBEK, TOUCAN, in het Latyn Bucco. Hy is de Ramphastos van Linn. Syst. Nat. het 38ste geslacht. 56. KASUARIS, in’t Lat. Cela. Casuarius by Linnaeus gesl. 63. Emeu. by Clusius. Exot. L. v. c. 3. (Then follows the description in every case.) As exemplified by 3 and 56 (and others) the principle of priority was not in Nozeman’s mind. The Latin names were added to the Dutch ones because Moehring 1752 had them. Neither Nozeman nor Vosmaer indicate anywhere that they accept them as the scientific names of the genera. However, they are certainly published after Linnaeus’s 10th edition. (ii) Supplementary report dated 12th January 1944: By KARL JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) I have now compared Moehring, Avium Genera 1752, with the translation of 1758, and am perfectly satisfied that the translator has not added any Latin names of his own. All the Latin names are those of 1752 ; the spelling is the same except that the letter i is replaced by y and that there are one or two printing errors or penslips. The additions to Moehring 1752 made in the translated 1758 edition contain some Latin names, but all these are quoted from older authors and are not available. Examples :— 1752 36. Parus. Linn. gen. 76., ed. 6, gen. 83. [Then follows description of genus. | note (a) Variat incisio apicis linguae : in paro maiore apex 3 vel 4 setis terminatus ; in paro caeruleo apex setis quidem 18 OPINIONS AND DECLARATIONS terminatus, sed setarum una vel altera in quibusdam individuis lacera evadit. Paro atro est singula seta in singulo apicis truncati margine, medio spatio fere verticali, integro. (All “‘ v’s” are printed “u’”’. K.J.). 37. ORITES. Parus caudatus Auctorum. [Then follows description of genus. ] 1758 36. MEES, in’t Latyn Parus. Linnaeus. Syst. Nat. geslacht 83. then follows description ; words in italics in 1752 here again in italics. Sometimes in the 1758 edition a word or two are added in square brackets. note (a) De sneede in de punt der Tong is verscheiden: In den Grooten Mees eindigt de punt in drie of vier borstel- haairtjes : In den Blaauwen Mees, [of Pimpel] eindigt de punt mede wel in borsteltjes ; maar het eene of ’t andere van deze borstelhaairtjes word in sommige byzondere Meezen meer gefnazeld. De Zwarte Mees heft ¢én enkel borstelhaairtje op elken rand der geknotte tongpunt, welke rand halver weg omtrent rechtsstandig [verticalis] en gaaf is. 37. STAARTMEES, in’ t Latyn Orites. De Langstaart-Mees der Schryveren. [Then follows description.] IL—THE SUBSEQUENT HISTORY OF THE CASE 3. At the time of Dr. Jordan’s investigation into Nozeman & Vosmaer’s Geslachten der Vogelen, the issue raised by that work had assumed an immediate practical importance in the current work of the Commission, for at that time the Secretary was engaged in a review of the older Opinions of the Commission for the purpose of extracting therefrom the particulars which would be needed for the publication of the Official List of Generic Names in Zoology and in two of these this issue had arisen in the most direct form. For in the Opinions concerned—Opinions 67 and 103— the International Commission had placed on the Official List OPINION 241 19 names—in the former case, the name Coturnix Bonnaterre, 1790, and, in the latter case, Grus Pallas, 1766—which would be invalid junior homonyms of names consisting of the same words, if the Geslachten der Vogelen of 1758 were to be found an acceptable work for the purposes of zoological nomenclature. The immediate anxieties regarding the correctness of the action taken by the Commission in the foregoing Opinions were set at rest by the evidence adduced by Dr. Jordan that the names published in the Geslachten der Vogelen had been carried over by Nozeman & Vosmaer from the pre-1758 Avium Genera of Moehring without having been re-inforced by adoption or acceptance as required under the Commission’s Opinion 5. At that time a re-issue was being prepared of the last-named Opinion and it was judged that it would be convenient in that re-issue to cite the Geslachten der Vogelen of Nozeman & Vosmaer as an example of a work, the names in which failed to satisfy the tests laid down in that Opinion and accordingly possessed no status of availability by reason of having been so republished after Ist January 1758, the date pre- scribed in Article 26 of the Rég/es as the starting point of zoological nomenclature. A discussion of this work, together with Dr. Jordan’s two Reports, was accordingly included in the notes attached to the re-issue of Opinion 5 published in 1944 (Ops. Decls. int. Comm. zool. Nomencl. 1 : 120—122). 4. In the summer of 1948 the documents relating to this case, which at that time bore the Registered Number Z.N.(G.) 24 (re-issue of Opinions adopted prior to Lisbon, 1935) but which were later re-registered under the Number Z.N.(S.) 367, were prepared by the Secretary for consideration by the International Commission during its then forthcoming Session at Paris. At the same time (10th June 1948) Mr. Hemming added the following note to the file :— It seems to me that Dr. Jordan’s Reports on Nozeman & Vosmaer’s Geslachten der Vogelen provide conclusive evidence in favour of the rejection of that work, and that as the new generic names in it are not currently used by ornithologists—indeed, Dr. Peters has said that the adoption of these names would give rise to the wildest confusion—no question of the use of the Plenary Powers to validate these names calls for consideration. Accordingly, my recommendation is that the International Commission should render an Opinion that the new names in Nozeman & Vosmaer’s Geslachten der Vogelen, being names carried over from the pre-Linnean period into the period of zoological 20 OPINIONS AND DECLARATIONS nomenclature without being reinforced by adoption or acceptance, as required by Opinion 5, possess no status of availability in virtue of having been so published. Ill.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Pro- ceedings of the International Commission, setting out the decision reached by it in this case at the foregoing meeting (Paris Session, 14th Meeting, Conclusion 50) (1950, Bull. zool. Nomencl. 4 : 566— 568) :— THE COMMISSION agreed :— (1) that the work published in 1758 under the title Geslachten der Vogelen, consisting of a translation into Dutch by Nozeman & Vosmaer of the work by Moehring (P.H.G.) originally published in 1752 (i.e. before the starting-point of zoological nomenclature, as pre- scribed by Article 26) was not available under the Reégles, Nozeman & Vosmaer not having reinforced the names contained therein by adoption or acceptance in the manner prescribed in Opinion 5, and therefore that those names possessed no status in zoological nomenclature as from the date of being so published ; (2) to render an Opinion recording the decision specified in (1) above. 6. The decision in this case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International OPINION 241 DAL Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 120). 7. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 8. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 9. At its meeting held at Copenhagen in August 1953, the Fourteenth International Congress of Zoology decided to insert a provision in the Rég/es establishing an “ Official Index” to be styled the Official Index of Rejected and Invalid Works in Zoological Nomenclature and directing the insertion therein of the title of any work which the International Commission might either reject under its Plenary Powers or declare to be invalid for the purposes of zoological nomenclature (1953, Copenhagen Decisions zool. Nomencl. : 23—24). Since the foregoing provision applies to past, as well as to future, decisions by the International Commission in cases of this kind, the opportunity presented by the preparation of the present Opinion has been taken to record the insertion in the foregoing Official Index of Nozeman & Vosmaer’s Geslachten der Vogelen of 1758. 10. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Com- mission by the under-signed Francis Hemming, Secretary to the D2 OPINIONS AND DECLARATIONS International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 11. The present Opinion shall be known as Opinion Two Hundred and Forty-One (241) of the International Commission on Zoological Nomenclature. Done in London this Twelfth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by Mretcatre & Cooper LimiTeED, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c.™.c., C.B.E. Secretary to the Commission VOLUME 5. Part 3. Pp. 23—44 OPINION 242 Designation, under the Plenary Powers, of a type species for Echeneis Linnaeus, 1758 (Class Pisces) in harmony with accustomed nomenclatorial usage (correction of an error in Opinion 92) ENN HSON/4y JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Eight Shillings and Threepence (All rights reserved) Issued 21st May, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 242 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorrTensEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CaporIAcco (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PrETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). : Dr. Harold E. Voxes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CaLMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Ritey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UsINGER (University of California, Berkeley, California, U.S.A.). OPINION 242 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR ‘‘ ECHENEIS ”? LINNAEUS, 1758 (CLASS PISCES) INHARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE (CORRECTION OF AN ERROR IN ‘‘ OPINION ”’ 92) | RULING :—(1) Under the Plenary Powers the original indication, by Linnaean tautonymy (as prescribed by Opinion 16), of Echeneis remora Linnaeus, 1758, as the type species of Echeneis Linnaeus, 1758, is hereby set aside and Echeneis neucrates Linnaeus, 1758, is hereby designated as the type species of the foregoing genus. (2) Neither Gouan (1770) nor Forster (1771), when using the word “ Remora’’, used it as a generic name, and accordingly the reputed generic names Remora Gouan, 1770, and Remora Forster, 1771, are to be rejected as possessing no status in zoological nomen- clature. (3) The decision given implicitly in Opinion 92 (when the generic name Echeneis Linnaeus, 1758, was placed on the Official List of Generic Names in Zoology) that the spelling of the specific name neucrates Linnaeus, 1758, as published in the combination Echeneis neucrates, was incorrect and should be emended to “ naucrates’’ 1s hereby expressly confirmed. (4) The position on the Official List of Generic Names in Zoology of the generic name Echeneis Linnaeus, 1758, is hereby confirmed, subject to the insertion of a note that Echeneis naucrates (emend. of neucrates) Linnaeus, 1758, is the type species of this genus by designation under the Plenary Powers under (1) above (decision confirming action taken in Opinion 92). (5) The generic name Remora (gender of name: feminine) Gill, 1862 (type species, by absolute tautonymy : Echeneis remora Linnaeus, 1758) is hereby placed on the 26 OPINIONS AND DECLARATIONS Official List of Generic Names in Zoology as Name No. 668. | (6) The under-mentioned reputed but non-existent generic names, rejected under (2) above, are hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology as Names Nos. 62 and 63 :—(a) Remora Gouan, 1770; (b) Remora Forster, 1771. (7) The under-mentioned specific names are hereby placed on the Official List of Specific Names in Zoology as Names Nos. 60 and 61 :—(a) naucrates (emend. of neucrates) Linnaeus, 1758, as published in the combina- tion Echeneis neucrates; (b) remora Linnaeus, 1758, as published in the combination Echeneis remora. (8) The specific name neucrates (an Invalid Original Spelling for naucrates) Linnaeus, 1758, as published in the combination Echeneis neucrates, 1s hereby placed on the Official Index of Rejected and Invalid Specific Names in Zoology as Name No. 17. I.—THE STATEMENT OF THE CASE When in 1943 Mr. Francis Hemming, Secretary to the Inter- national Commission, was engaged in an examination of the older of the Opinions rendered by the Commission for the purpose of extracting therefrom the particulars which would be needed for inclusion in the Official List of Generic Names in Zoology when published in book form, he found that the entry on that List in respect of the type species of the genus Echeneis Linnaeus, 1758, made in Opinion 92 (1926, Smithson. misc. Coll. 73 (No. 4) : 3—4) was incorrect. For in that Opinion it was stated that the type species of this genus was Echeneis naucrates [emend. of neucrates| Linnaeus, 1758, notwithstanding the fact that as far back as 1910 the Commission had itself pointed out in Opinion 16 (Smithson. Publ. 1938 : 34) that under the doctrine of Linnaean tautonymy propounded in that Opinion the type species of the OPINION 242 27 genus Echeneis Linnaeus, 1758, was Echeneis remora Linnaeus, 1758. On the discovery of the foregoing mistake in Opinion 92, it became evident that it would be necessary for the International Commission either (1) to use its Plenary Powers to validate the entry on the Official List of Echeneis naucrates Linnaeus as the type species or (2) to correct the entry on the List relating to this generic name by substituting the name of Echeneis remora Linnaeus for that of Echeneis naucrates Linnaeus as the name of the type species of the genus Echeneis Linnaeus. As the relative merits of these two courses was a matter for specialists in the group to advise upon, Mr. Hemming in 1944 sought advice on the question from a number of ichthyologists. Replies were received from :—(a) Dr. Ethelwynn Trewavas (British Museum (Natural History), London) ; (b) Dr. C. M. Breeder, Jr. (American Museum of Natural History, Department of Fishes, New York, N.Y., U.S.A.) ; (c) Dr. Leonard P. Schultz (United States National Museum, Washington, D.C., U.S.A.) and Dr. Samuel F. Hildebrand and Dr. Robert R. Miller of the same Institution. Ali the fore- going specialists were opposed to the acceptance of Echeneis remora Linnaeus as the type species of the genus Echeneis Linnaeus and, therefore, favoured the use of the Plenary Powers in this case. In view of the unanimous advice so received, Mr. Hemming decided in 1945 to prepare an application, for sub- mission to the International Commission, drawing attention to the error committed in Opinion 92, setting out the advice received from specialists and submitting a recommendation that the Commission should use its Plenary Powers to validate the erron- eous entry regarding the type species of the genus Echeneis Linnaeus made in the Official List in the foregoing Opinion. The application so submitted by Mr. Hemming was as follows :— On an error, due to the non-observance of the provisions of ‘‘ Opinion ”’ 16, contained in the portion of ‘‘ Opinion ’’ 92, in which the name ** Echeneis ’’ Linnaeus, 1758 (Class Pisces), was placed on the ss veel List of Generic Names in Zoology ’’, and on the remedial action proposed By FRANCIS HEMMING (Secretary to the International Commission on Zoological Nomenclature) In Opinion 16, the International Commission on Zoological Nomenclature laid it down that, where an author, in publishing a 28 OPINIONS AND DECLARATIONS new generic name,* cites in the synonymy of one of the included species a name published prior to 1758 which is clearly a uninomial (i.e. univerbal) specific name and which consists of the same word as the new generic name, the species for which such pre-1758 name is cited as a synonym is to be treated as being automatically the type species of the new genus by absolute tautonymy under the provisions of rule (d) in Article 30+ of the Régles Internationales. 2. In paragraph 2 of Opinion 16, the International Commission gave a list of 63 generic names, the type species of each of which appeared to have been fixed in the manner described above at the time when the names in question were severally published. One of the names included in the list given in paragraph 2 of Opinion 16 was Echeneis Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 260. 3. When the genus Echeneis was established in 1758, Linnaeus placed in it two species only, namely : (1) Echeneis remora Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 260 ; and (2) Echeneis naucrates (emenda- tion of neucratest) Linnaeus, 1758, ibid. 1 : 261. 4. Linnaeus made four entries in the synonymy of the species Echeneis remora Linnaeus, 1758, the third of which was: “ Gron. mus. 1. n. 33. Echeneis.”’ In this way Linnaeus signified that the species to which he applied the name Echeneis remora was the same species as that to which in 1754 Laurentius Theodorus Gronovius had referred under the name “ Echeneis”’ in the first volume of his Museum Ichthyologicum. In these circumstances, the type species of the genus Echeneis Linnaeus, 1758, is fixed automatically by Opinion 16, as Echeneis remora Linnaeus, 1758, since all the conditions laid down in that Opinion for the citation in synonymy of a tautonymous pre-1758 uninomial specific name are satisfied in this case. The position is, therefore, that Echeneis remora Linnaeus, 1758, is the type species of the genus Echeneis Linnaeus, 1758, by absolute tautonymy under rule (d) in Article 30, as interpreted by Opinion 16. * A limitation was imposed upon Opinion 16 by the amendment to Article 25 of the Régles Internationales adopted by the Tenth International Congress of Zoology at Budapest in 1927. In consequence, the provisions of Opinion 16 now.apply only to names published on, or before, 31st December 1930, the last day prior to the coming into operation of the Budapest amendment to Article 25. t It should be recalled that the rules in Article 30 operate only in succession to one another. Accordingly, rule (d) is only operative, where the type of a genus has not already been fixed either under rule (a) or under rule (b) or under rule (c). Thus, Opinion 16 has no bearing upon the type species of genera, where those ee spas have been designated or indicated under rules (a), (b) or (©) of rticle 30. t The specific name of this species was printed as ‘“‘ neucrates”’ in 1758 in the 10th edition of the Systema Naturae of Linnaeus. The spelling of this name has been emended to “‘ naucrates’’ by subsequent authors. OPINION 242 29 5. In August 1924 Dr. C. W. Stiles, Secretary to the International Commission, issued a circular letter (C.L. 86) to all members of the Commission, in which, after referring to the proposals for the addition of a large number of names to the Official List of Generic Names in Zoology submitted by Commissioner Karl Apstein in 1915,* he gave particulars of the names of certain genera belonging to the Classes Amphibia, Reptilia, and Pisces, which had been included in the Apstein List and recently been re-studied by various specialists, who had reported that the names in question were valid,+ that the type species had been correctly fixed in accordance with the provisions of the Régles Internationales and, therefore, that these names could properly be placed on the Official List of Generic Names in Zoology, without the use by the International Commission of their Plenary Powers. The specialist by whom the names of genera belonging to the Class Pisces included in Dr. Stiles’s list were stated to have been restudied was Dr. David Starr Jordan, who was himself at that time a member of the International Commission. Dr. Stiles added that, in view of the favourable reports received from the specialists consulted, he recom- mended that the generic names in question should be added to the Official List of Generic Names in Zoology with the type species indicated in his Circular Letter. In due course, nine members of the International Commission signified their concurrence in Dr. Stiles’s proposals, which were thereupon adopted (by 10 votes to nil, with 7 abstentions) as Opinion 92 of the International Commission. This Opinion was published in October 1926.t 6. One of the names placed on the Official List of Generic Names in Zoology by Opinion 92 was Echeneis Linnaeus, 1758. The entry relating to this generic name in Opinion 92 reads as follows : ‘‘ Echeneis Linn., 1758a, 260, type E. naucrates Linn. 1758a, 261 ”’. 7. No particulars were given in Opinion 92 regarding the manner in which the type species of the genera there enumerated had been determined (i.e. whether by original designation, monotypy, absolute tautonymy, or subsequent selection). In the case of the names of genera belonging to the Class Pisces, there is, however, the following note in the circular letter referred to in paragraph 5 above: “ For data by Dr. Jordan see THE GENERA OF FISHES, Jordan and Evermann, * The list submitted by Commissioner Karl Apstein formed the subject of dis- cussion in the Commission’s Opinion 74 (published in 1922 in Smithson. misc. Coll. 73 (No. 1) : 32—34), the ‘“‘ summary ”’ of which reads as follows :— ‘“ The Commission has no power to adopt en bloc Apstein’s list of proposed Nomina Conservanda, but is prepared to consider names separately upon presentation of reasonably complete evidence.” + The use of the expression “ valid ’ in this connection is incorrect. A name is either “ available’ or ‘“‘ unavailable’ under the Régles Internationales. The question whether an “‘ available name ”’ is also a “‘ valid name ”’ is a taxonomic, and not a nomenclatorial, question. t Opinion 92 was published in 1926, Smithson. misc. Coll. 73 (No. 4) : 3—4. 30 OPINIONS AND DECLARATIONS 1917a’’. Reference to the above work (Jordan & Evermann, 1917, Genera Fishes (1) : 12) shows that the name Echeneis Linnaeus was there dealt with as follows :— Echeneis Linnaeus, 260, after Artedi; type ECHENEIS NAUCRATES L. (misprinted NEUCRATES). First restriction by Gill, Proc. Acad. Nat. Sci. Phila., 1862, 239. In 1864, loc. cit. 60, Gill proposed to adopt as type ECHENEIS REMORA, this being the only species noted by Artedi, and in Linnaeus’s earlier writings. But as Linnaeus referred both species to ECHENEIS, this change seems not warranted. 8. The points which it is important to note are the following :— (i) In 1917, Jordan and Evermann :— (a) gave no consideration to the question of the applicability of Opinion 16 to the generic name Echeneis Linnaeus, 1758, notwithstanding the fact that in Opinion 16 the International Commission on Zoological Nomenclature had indicated that there were prima facie grounds for considering that Echeneis remora Linnaeus, 1758, was the type species of that genus by absolute tautonymy ; (b) disregarded the action of Gill (1864) in selecting Echeneis remora Linnaeus, 1758, as the type species of Echeneis Linnaeus, 1758 ; and (c) adopted Echeneis naucrates Linnaeus, 1758, as the type species of Echeneis Linnaeus, 1758. (ii) When in the period 1924—1926 the question of placing the name Echeneis Linnaeus, 1758, upon the Official List of Generic Names in Zoology was under consideration, the conclusions reached by Jordan and Evermann in 1917 were not re-examined by the International Commission. In consequence, no con- sideration was given to the question whether the provisions of Opinion 16 applied to the generic name Echeneis Linnaeus, 1758, and, therefore, whether under the Régles Internationales the type species of this genus was Echeneis remora Linnaeus, 1758, and not Echeneis naucrates Linnaeus, 1758, as concluded by Jordan and Evermann in 1917. 9. It is most unfortunate that the question of the applicability of Opinion 16 to Echeneis Linnaeus, 1758, was not considered by the International Commission at the time when Opinion 92 was in prepara- tion, since the failure to do so has had the result that in that Opinion the International Commission, when placing the name Echeneis Linnaeus, 1758, on the Official List of Generic Names in Zoology, erroneously stated that the type species of that genus was Echeneis OPINION 242 3] naucrates Linnaeus, 1758, whereas, in fact (as shown in paragraph 4 above), Echeneis remora Linnaeus, 1758, is the type species of that genus by absolute tautonymy under rule (d) in Article 30 as interpreted by Opinion 16. 10. The decisions embodied in Opinion 92 were not taken by the International Commission under their Plenary Powers, and in con- sequence nothing in that Opinion can have the effect of inserting in the Official List of Generic Names in Zoology an entry which is contrary to the provisions of the Régles Internationales. Accordingly, the portion of Opinion 92 which states that Echeneis naucrates Linnaeus, 1758, is the type species of Echeneis Linnaeus, 1758, is ultra vires and therefore invalid. 11. It is clearly essential that, when, as on the present occasion, an error on a question of fact is detected in an Opinion rendered by the International Commission, the earliest possible opportunity should be taken to rectify the error so detected. In the present case there are two courses of action, either of which it is open to the International Commission to take, namely :— (1) to render an Opinion cancelling the entry in Opinion 92 relating to the generic name Echeneis Linnaeus, 1758, and substituting therefore an amended entry placing that name on the Official List of Generic Names in Zoology with Echeneis remora Linnaeus, 1758, as type species by absolute tautonymy under rule (d) in Article 30 of the Régles Internationales, as interpreted by Opinion 16 ; OR (2) to render an Opinion under the Commission’s Plenary Powers (a) cancelling the designation of Echeneis remora Linnaeus, 1758, as the type species of Echeneis Linnaeus, 1758, and (b) specifying Echeneis naucrates Linnaeus, 1758, as the type species of that genus. 12. Course (1) above is clearly the proper course to adopt, unless it can be shown that the strict application of the Régles Internationales in the case of the name Echeneis Linnaeus, 1758, will clearly result in greater confusion than uniformity, in which event Course (2) would be the proper course to follow. Only specialists in the Class Pisces are in a position to furnish the International Commission with the material necessary to enable them to form a conclusion on the question whether confusion rather than uniformity would clearly result from the strict application of the Rég/es in this case through the acceptance of Echeneis remora Linnaeus, 1758, as the type species of the genus Echeneis Linnaeus, 1758, and therefore whether or not the Régles should be suspended in this case in order to validate existing practice by specifying Echeneis naucrates Linnaeus, 1758, as type species of this genus, 32 OPINIONS AND DECLARATIONS 13. It was in 1944 that I first discovered the mistake in Opinion 92 in regard to the type species of the genus Echeneis Linnaeus, 1758, while I was engaged in an examination of the subsequent history of the numerous generic names, of which the status is discussed in Opinion 16 but on which no decision was taken in that Opinion. On making this discovery, I thought it well to obtain preliminary advice from leading ichthyologists on the question whether this was a case in which the Régles should be allowed to take their course and existing practice should be set aside through the recognition of Echeneis remora Linnaeus, 1758, as the type species of the genus Echeneis Linnaeus, 1758, or whether, in the view of the specialists consulted, the prospect of confusion arising from the adoption of that course was such as to justify the use by the International Commission of their Plenary Powers for the purpose of designating Echeneis naucrates Linnaeus, 1758, as the type species of the genus Echeneis Linnaeus, 1758. In putting the case before the specialists concerned, I drew attention also to the fact that, according to the latest Nomenclator (Neave, 1940, Nomencl. zool. 4 : 21), the name Remora Gill, 1862, Proc. Acad. nat. sci. Philad. 1862 : 239 (the name of the genus to which the species Echeneis remora Linnaeus, 1758, is commonly referred) is a homonym (1) of Remora Gouan, 1770, Hist. Pisc. 10, 183, and (2) of Remora Forster, 1771, Cat. Anim. N. Amer. : 20. I accordingly asked the specialists concerned, when replying to the main question which I had put to them, to indicate also their views on the question whether the name Remora Gill, 1862, was an available name or whether it was, as then appeared probable, an invalid homonym under Article 34 of the Régles Internationales. 14. The following are the replies received from the specialists consulted :— (a) Views of Dr. Ethelwynn Trewavas, Department of Zoology, British Museum (Natural History), London (letter dated 24th October 1944) Unfortunately, the library being evacuated, I cannot go into the Echeneis—Remora question as I should. But I think it is right to say that the use now of Echeneis remora Linnaeus, 1758, as the type of Echeneis Linnaeus, 1758, would cause confusion. Remora Gill, 1862,* is not a homonym, as, according to the writers whom I have consulted, the first two authors listed by * The volume of the Proc. Acad. nat. Sci. Philad. in which the name Remora Gill was published has no volume number. It is the volume for the year 1862 and should therefore be cited as Proc. Acad. nat. Sci. Philad. 1862. It was published in Parts, like similar journals, and the dates of publication of the several Parts are given at the foot of the page on each signature. The signature in which the name Remora Gill appears is dated “‘ April 1862”. The title page of the volume was published after the close of 1862 and is dated “1863 ”’. This is no doubt the reason why the name Remora Gill is inadvertently treated in the latest omen (Neave 1940, Nomencl. zool. 4 : 21) as having been published in : OPINION 242 33 Neave in his Nomenclator zoologicus (Gouan, 1770, and Forster, 1771) used it in the same sense as have later authors, i.e. with Echeneis remora Linnaeus as type by absolute tautonymy. If it is possible, I hope that a decision may be postponed until the library is available again, as I have not been able to consult either Gouan or Forster. (b) Views of Dr. C. M. Breder, Jr., Department of Fishes, American Museum of Natural History, New York (letter dated 29th November 1944) I have studied your statement concerning the status of the type of the genus Echeneis Linnaeus, 1758. In cases of this sort which involve the inversion of established generic names I believe that true “confusion”? as opposed to mere “ inconvenience’”’ is the inevitable resultant effect. Consequently I recommend that the appropriate action be taken to firmly establish Echeneis naucrates Linnaeus, 1758, as the type of Echeneis Linnaeus. Due to the press of other matters I have not been able to look up Gill, 1862, but I do not believe that any treatment of his would change my view concerning the inadvisability of permitting Echeneis remora Linnaeus, 1758, to become properly established as the type of Echeneis. (c) Views of Dr. Leonard P. Schultz, Dr. Samuel F. Hildebrand and Dr. Robert R. Miller, United States National Museum, Washington, (letter from Dr. Leonard P. Schultz dated Ist December 1944) Your letter of November 16th concerning the genera Echeneis and Remora arrived on the 29th, and, after considerable inves- tigation, I have come to certain conclusions which are explained below. Echeneis Linnaeus, 1758, has two species listed in the following order : (1) E. remora, and (2) E. neucrates. After, 1758, E. remora was listed by very numerous authors and the vernacular name— Remora—was used many times both for E. remora and E. neucrates and, no doubt, for other species of this group of fishes. The next question is when was the genus Remora established and the genus Echeneis first restricted ? 34 OPINIONS AND DECLARATIONS Neave (Nomenclator Zoologicus, vol. 4, p. 21, 1940) cites Remora Gouan, 1770 (Hist. Pisc., p. 10, [107], 183) but, in looking this up, I find that the left-hand page 183 is in Latin and the generic name Echeneis is used, whereas the right-hand page (also numbered 183) is the French translation of the opposite page 183 and the name used is “Le Remora’. No species is cited anywhere. Thus, in my opinion, ““ Remora”’ was not used generically in 1770. Forster, 1771, A Catalogue of the Animals of North America... (reprint of 1882 examined by me) has three columns throughout. The column on the left-hand side of each page gives a common name preceded by a Roman number and on page 6 this series of numbers has over it the name “Genus”. The second column also contains common or vernacular names, breaking down further the common name in the left-hand column. The third column usually (but not always) contains a Latin binomial name, as for example :— XIV Cod ES Jugular Common ib. Frost Gadus callarias Mus. Bi. Tau Gadus Tau XVIII. Remora *** Thoracic Remora Ech. neucrates C.II.26 Thus, I conclude that Remora is not used in the binomial sense but only as a common name by Forster, 1771 and 1882. I have searched the literature and can find no generic use of Remora previous to that of Gill (April 1862, Proc. Acad. Nat. Sci. Philadelphia, p. 239). Gill revised the ‘‘ family of Echeneidoidae ”’, * (a) Gill’s action here described fulfils all the conditions laid down in Opinion 6. Accordingly, if no type species had previously been designated, indicated or selected for the genus Echeneis Linnaeus, 1758, Gill’s action on this occasion would constitute a valid selection Echeneis naucrates (emend. of neucrates) Linnaeus, 1758, as the type of the genus Echeneis Linnaeus. (b) Although the name Remora was published by Gill in 1862 without a description or definition, it is a nomenclatorially available name, since the . genus is monotypical and the name Remora Gill, 1862, was, therefore, pub- lished with an “ indication ’’ (as defined by Opinion 1) and accordingly satisfies the requirements of Article 25 of the Régles Internationales. + As Gill designated Echeneis remora Linnaeus, 1758, as the type species of the genus Remora Gill, 1862, that species is automatically the type species of that genus under rule (a) in Article 30 of the Régles Internationales. The specific OPINION 242 35 giving a key to the various genera, some new, citing the genotype for each, as, for example, in my reprint of his article :— Echeneis* (E. naucrates L.) Remorat (E. remora L.) Thus Gill 1862, not only established the genus Remora, but also restricted the genus Echeneis L. to the species E. naucrates L. Further, he was the first reviser and, in addition, his genus Remora has but a single species cited,* that is, E. remora L., which is tautotypic for Remora. The next binomial use of Remora appears to be that of Bleeker (September 1863, Onziéme Notice sur la Faune Ichthyologique de Pile de Ternate). On page 9 of my reprint the name is used as “279. Remora albescens Gill=Echeneis albescens Schl. ”’ Gill (March 1864,t Proc. Acad. Nat. Sci. Philadelphia, pp. 59—60) reversed himself in regard to the genotypes of both Echeneis and Remora when he published the following :— Elevating these types with others to independent generic rank, I have restricted Echeneis to the genus typified by E. naucrates and called that one typified by E. remora, Remora, which name Dr. Bleeker has since accepted. On examining the works of Linnaeus and Artedi, I find, however, that E. remora was the only species referred to that genus by Linnaeus in the earlier editions of the Systema Naturae, and by Artedi; and that in the later editions, Linnaeus placed that species at the head of the genus. The E. remora must consequently be regarded as the type of the genus, and a new name (Leptecheneis) conferred on E. naucrates. The genera of Echeneidoidae will then be known by the following names : name (remora) is the same word as that which constitutes the name of the genus (Remora), and this fact would make that species the type species of Remora Gill by absolute tautonymy under Rule (d) of Article 30, if the type species of that genus had not previously been fixed in some other manner. In this connection, it must be recalled that the Rules set out in Article 30 are not Rules which operate independently of one another but on the contrary are Rules which operate only in succession to one another in a diminishing order of priority. Accordingly, in the present case, the type species of the genus Remora Gill, 1862, is Echeneis remora Linnaeus, 1758, through the operation of Rule (a) in Article 30 (type by original designation). In these circumstances, the later Rule (d) in the same Article has no applicability to the generic name Remora Gill, 1862. t This volume of the Proc. Acad. nat. Sci. Philad. was issued without a volume number and with the dates of publication of the several Parts printed at the foot of each signature in the same way as the volume for 1862. 36 OPINIONS AND DECLARATIONS REMORAE Echeneis remora L. Echeneis L., Art. Type, Echeneis remora L.* Remoropsis Gill. Type, Echeneis brachyptera Lowe. Rhombochirus Gill. Type, Echeneis osteochir Cuy. Remilegia Gill. Type, Echeneis australis Bennett=Echeneis scutata Giinther. oe ee LEPTECHENEIDES 5. Leptecheneis Gil/. Type, Echeneis neucrates L. 6. Phtheirichthys Gil/. Type, Echeneis lineatus Menzies. The current use of the two genera is almost universal among present-day ichthyologists, most of whom have completely ignored Opinion 16 and have followed Gill and Opinion 92. Listed below are a few works of importance that recognise both genera (Echeneis and Remora) with the genotypes as given : Jordan, Evermann, and Clark, Check List of Fishes—North America—,Rept. U.S. Comm. Fish., 1928, Pt. 2, p. 448, 1930 (Echeneis L., type E. naucrates L.) ; (Remora Forster, type E. remora L.) Meek and Hildebrand, Marine Fishes of Panama, vol. 3, p. 896, 1928 (Echeneis L., type E. Naucrates L.) ; (Remora Forster, type E. remora L.) Fowler, Marine Fishes of West Africa, vol. 2, pp. 1018, 1021, 1936 (Remora Forster, type E. remora L.) ; (Echeneis L. type E. neucrates L.) Schultz, U.S. Nat. Mus. Bull. 180, pp. 259, 260, 1943 (Echeneis L., type E. naucrates L.) ; (Remora Forster, type E. remora L.) * Gill’s action in 1862 would have constituted a valid selection of Echeneis naucrates Linnaeus, 1758, as the type species of the genus Echeneis Linnaeus, 1758, if it had not been for the fact that Echeneis remora Linnaeus, 1758, had been the type species of that genus from the date of its original publication (1758) by absolute tautonymy under Rule (d) in Article 30 as interpreted by Opinion 16. In no circumstances, therefore, could Gill’s action in 1864 in selecting Echeneis remora Linnaeus as the type species of Echeneis Linnaeus have had any power to reverse or set aside the selection by the same author in 1862 of Echeneis naucrates Linnaeus as the type species of this genus. For the reasons explained above, Gill’s action in 1862 was invalid, because through the operation of Rule (d) in Article 30 and Opinion 16 the type species of the genus Echeneis Linnaeus had always been Echeneis remora Linnaeus. By a pure accident, therefore, the statement by Gill in 1864 that Echeneis remora Linnaeus is the type species of this genus happens to correspond correctly with the actual position under the Régles Internationales but this is not due in any way to the action then taken by Gill. OPINION 242 — 37 L. S. Berg (Classification of Fishes both Recent and Fossil, Travaux Inst. Zool. Acad. Sci. URSS, vol. 5, Pt. 2, p. 495, 1940) recognised both genera, Echeneis and Remora. My conclusions are that both genera should be recognised and that Remora dates from Gill 1862, and not from Forster 1771, or Gouan 1770. It is clear that the genotypes are those named by Gill 1862, who, as stated heretofore, was the first reviser and the first to restrict the genus Echeneis L. To change the genotypes from those designated by Gill, 1862, would result in actual confusion. They should stand as currently used by ichthyologists—Remora Gill, 1862 (type E. remora L.) and Echeneis L. (type E. neucrates L.). Dr. Samuel F. Hildebrand and Dr. Robert R. Miller, both actively engaged in systematic ichthyology here at the United States National Museum, concur in the opinions stated above. 15. In view of the unanimous nature of the advice received from the specialists consulted, a clear prima facie case has been established in support of the view that the strict application of the Rég/es in the case of the name Echeneis Linnaeus, 1758 (i.e. the acceptance of Echeneis remora Linnaeus, 1758, as the type species of FEcheneis Linnaeus, 1758, by absolute tautonymy under Rule (d) in Article 30 of the Régles Internationales, as interpreted by Opinion 16) would clearly result in greater confusion than uniformity. It follows, therefore, that the course best calculated to promote stability in the nomenclature of the Order Discocephali in the Class Pisces would be for the Inter- national Commission on Zoological Nomenclature to use their Plenary Powers in order to validate the (at present) erroneous entry in Opinion 92 in regard to the type species of Echeneis Linnaeus, 1758, thereby validating also the current practice of specialists in the group concerned. For this purpose, it would be necessary for the International Commis- sion (i) to set aside the designation of Echeneis remora Linnaeus, 1758, as the type species of Echeneis Linnaeus, 1758, by absolute tautonymy and (ii) to designate Echeneis naucrates (emend. of neucrates) Linnaeus, 1758, as the type species of this genus. 16. Further, I agree with the view expressed by Drs. Schultz, Hildebrand and Miller that, if the foregoing action is to be taken in regard to the name Echeneis Linnaeus, 1758, it is desirable that at the same time action should be taken by the International Commission on Zoological Nomenclature to dispose of the outstanding points in regard to the name Remora. In view of the evidence brought forward, it seems to me that the most satisfactory course would be for the International Commission to suppress under their Plenary Powers all uses of the name Remora as a generic name prior to the publication of the generic name Remora Gill, 1862, Proc. Acad. nat. Sci. Philad. 1862 : 239. The name Remora Gill, 1862 (type species by original 38 OPINIONS AND DECLARATIONS designation ; Echeneis remora Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 260) could then be added to the Official List of Generic Names in Zoology. 17. The proposal which will, therefore, be submitted to the Inter- national Commission on Zoological Nomenclature is that they should render an Opinion under their Plenary Powers in the following terms:— (a) Under suspension of the Rég/es, it is hereby declared as follows:— (i) All type designations for Echeneis Linnaeus, 1758, made prior to the date of this Opinion are set aside : (ii) Echeneis naucrates (emendation of neucrates) Linnaeus, 1758, is designated as the type species of Echeneis Linnaeus, 1758. (iii) The name Remora as used by A. Gouan, 1770, by J. R. Forster, 1771, and by any other author prior to the publication of the name Remora Gill, 1862, is suppressed. (iv) The name Remora Gill, 1862 (type species, by original designation: Echeneis remora Linnaeus, 1758) is validated. (b) The entry in Opinion 92 relating to the name Echeneis Linnaeus, 1758, is accordingly confirmed and the name Remora Gill, 1862 (Class Pisces, Order Discocephali), with the type species specified above, is hereby added to the Official List of Generic Names in Zoology. II.—THE SUBSEQUENT HISTORY OF THE CASE 2. The mistake in Opinion 92 regarding the type species of Echeneis Linnaeus, 1758, was discovered at the same time that the Commission’s Opinion 16 was being examined in connection with a re-issue which was then in preparation. In consequence, the documents relating to the present case were in the first instance registered under the Number Z.N.(G.) 24, the File concerned with the arrangements for the re-issue of the older Opinions which were out of print and had become unobtainable. When however in 1944 it became evident that a special application would need to be submitted to the International Commission in regard to the present case, the documents relating to it were re-registered under the Number Z.N.(S.) 156. On the receipt of Mr. Hemming’s application, it was considered that the most convenient course OPINION 242 39 would be to include it as one of the Notes which it had been decided to annex to Opinion 16 when re-issued. The revised edition of that Opinion was sent to the printer on 11th September 1945, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 28th February 1947 (Ops. Decls. int. Comm. zool. Nomencl. 1 : 255—304). 3. Issue of Public Notices: On 20th November 1947 a notice of the possible use, by the International Commission on Zoological Nomenclature, of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The pub- lication of this notice elicited no objection to the action proposed. IIl—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 4. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Pro- ceedings of the International Commission, giving a summary of the discussion which took place on this case (1950, Bull. zool. Nomencl. 4 : 538) :— IT WAS GENERALLY AGREED that in view of the confusion which would result from the strict application of the Rég/es in the present case, the desirability of avoiding (wherever possible) the making of changes in entries previously made in the Official List, the wide and representative support for the present proposals received from leading ichthyologists and the complete lack of opposition of any kind, a case for the use of the Plenary Powers in the present instance had been established and that the application should be granted. 5. At the close of the discussion summarised in the preceding paragraph, the Commission took its decision in the present case. That decision is set out as follows in the Official Record of the 40 OPINIONS AND DECLARATIONS Proceedings of the International Commission (Paris Session, 14th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 536—539) :— THE COMMISSION agreed :— (1) to use their Plenary Powers to set aside the original indication of Echeneis remora Linnaeus, 1758, as the type species of the genus Echeneis Linnaeus, 1758 (Class Pisces, Order Discocephali) by absolute tauton- ymy (Article 30, Rule (d), as interpreted by Opinion 16) and in the place of that species to designate Echeneis neucrates Linnaeus, 1758, to be the type species of this genus ; (2) that neither Gouan (1770) nor Forster (1771) when using the word “ Remora”, had used it as a generic name and therefore that the reputed generic names Remora Gouan, 1770, and Remora Forster, 1771, were to be rejected as having no existence under the Rég/es ; (3) to confirm explicitly the decision given implicitly in Opinion 92 (when the generic name Echeneis Linnaeus, 1758, had been placed on the Official List of Generic Names in Zoology) that a faute d’orthographe was evident in the spelling of the trivial name neucrates Linnaeus, 1758 (as published in the binominal combination Echeneis neucrates) and therefore that the spelling of that trivial name is, under Article 19, to be emended to naucrates ; (4) to confirm the position on the Official List of Generic Names in Zoology of the generic name Echeneis Linnaeus 1758 (type species, by designation under the Plenary Powers under (1) above: Echeneis naucrates (emend. neucrates) Linnaeus, 1758) (decision confirming action taken in Opinion 92) ; (5) to place the generic name Remora Gill, 1862 (type species, by absolute tautonymy: Echeneis remora Linnaeus, 1758) on the Official List of Generic Names in Zoology ; OPINION 242 41 (6) to place the under-mentioned reputed but non-existent generic names, rejected under (2) above, on the Official Index of Rejected and Invalid Generic Names in Zoology :— (i) Remora Gouan, 1770 ; (11) Remora Forster, 1771 ; (7) to place the under-mentioned trivial names on the Official List of Specific Trivial Names in Zoology :— naucrates Linnaeus, 1758 (emendation, under (3) above, of neucrates, as published in the binominal combination Echeneis neucrates) remora Linnaeus, 1758 (as published in the binominal combination Echeneis remora) ; (8) to render an Opinion recording the decisions specified in (1) to (7) above. 6. The decision in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 117). 7. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 42 OPINIONS AND DECLARATIONS 8. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 9. Under the regulations governing the Official Index of Rejected and Invalid Generic Names in Zoology and of the corres- ponding Official Index of Rejected and Invalid Specific Names in Zoology, the International Commission is required to place on these Indexes every generic name or, as the case may be, every specific name which it either rejects under its Plenary Powers or declares to be invalid. In the present instance, the required entries in the Official Index of Rejected and Invalid Generic Names in Zoology were duly specified in the Official Record of the Pro- ceedings of the International Commission, but by some inadver- tence no similar entry on the Official Index of Rejected and Invalid Specific Names in Zoology was made in the Official Record of the specific name neucrates Linnaeus, 1758, as published in the combination Echeneis neucrates, then (Point (3) of the Conclusion quoted in paragraph 5 of the present Opinion) rejected as an Invalid Original Spelling. This omission has been rectified in the Ruling given in the present Opinion. 10. The following are the original references for the names which appear in the decision set out in paragraph 5 above :— Echeneis Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 260 naucrates (emend. of neucrates), Echeneis Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 261 neucrates, Echeneis, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 261 Remora Gouan, 1770, Hist. Pisc. : 10, [107], 183 Remora Forster, 1771, Cat. Anim. N. Amer. : 20 Remora Gill, 1863, Proc. Acad. nat. Sci. Philad. 1862 : 239 remora, Echeneis, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 260. 11. The gender of the generic name Remora Gill, 1862, referred to in the decision quoted in paragraph 5 above, is feminine. 12. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific OPINION 242 43 Trivial Names in Zoology, the word “ trivial”’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name ’’ was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 13. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 14. The present Opinion shall be known as Opinion Two Hundred and Forty-Two (242) of the International Commission on Zoological Nomenclature. Done in London this Thirteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, cCM.G., C.B.E. Secretary to the Commission VOLUME 5. Part 4. Pp. 45—56 OPINION 243 Designation, under the Plenary Powers, for the nominal genus Carabus Linnaeus, 1758 (Class Insecta, Order Coleoptera) of a type species in harmony with current nomenclatorial usage ; LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 21st May, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 243 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JorDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. Perers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). : Dr. Harold E. VoKEs (United States Seale Survey, Washington, IDK en. U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHmMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). ‘Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKG (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. SToit (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohojskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSouR (King Fouad University, Cairo, Egypt). ‘Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Rivey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. USINGER (University of California, Berkeley, California, U.S.A.). OPINION 243 DESIGNATION, UNDER THE PLENARY POWERS, FOR THE NOMINAL GENUS ‘ CARABUS ” LINNAEUS, 1758 (CLASS INSECTA, ORDER COLEOPTERA) OF A TYPE SPECIES IN HARMONY WITH CURRENT NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers, all type selections for the nominal genus Carabus Linnaeus, 1758 (Class Insecta, Order Coleoptera) made prior to the pres- ent Ruling are hereby set aside and Carabus granulatus Linnaeus, 1758, is hereby designated as the type species of this genus. (2) The generic name Carabus Linnaeus, 1758 (gender of name : masculine) with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 669. (3) The specific name granulatus Linnaeus, 1758, as published in the combination Carabus granulatus, is hereby placed on the Official List of Specific Names in Zoology as Name No. 62. 48 OPINIONS AND DECLARATIONS I.—THE STATEMENT OF THE CASE On 15th December 1939 the Royal Entomological Society of London published Part 6 of the work entitled The Generic Names of British Insects. This Part contained the Sixth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Coleoptera Sub-Committee. This Report was concerned exclusively with the names of genera belonging to the Family CARABIDAE, species of which occur in the United Kingdom. Attached to the Sub-Committee’s Report was a statement in which it had formulated recommendations for the use, by the International Commission, of its Plenary Powers in the case of the names of seven genera belonging to the foregoing Family. The Sub-Committee submitted at the same time a more detailed statement regarding the names of the genera of this Family represented in the British Fauna which had been prepared for it by Mr. H. E. Andrewes, one of its members. The present Opinion is concerned only with the first of the applications so submitted. This relates to the generic name Carabus Linnaeus, 1758. At the time of the publication of the foregoing Part of the Generic Names of British Insects, the hour was not opportune for the submission to the International Commission by the Society of recommendations relating to problems of zoological nomenclature, for at the outbreak of war in Europe in September 1939 the records of the International Commission had been evacuated from London to the country as a precaution against the risk of destruction through air raids and the London Secretariat of the Commission had been temporarily closed, while, for its part, the Society, like other learned institutions with headquarters in London, was pre-occupied with pressing administrative pro- blems. Accordingly, at that time no steps were taken by the Society to submit to the International Commission the recom- mendations formulated by the Coleoptera Sub-Committee. In - At the time of the publication of this Report the Composition of the Committee on Generic Nomenclature was as follows :—Francis Hemming, C.M.G., C.B.E. (Chairman); K. G. Blair, D.Sc.; F. W. Edwards, M.A., Sc.D., F.R.S. ; O. W. Richards, M.A., D.Sc.; N. D. Riley; W. A. F. Balfour-Browne (Secretary). The composition of the Coleoptera Sub-Committee at this time was as follows :—H. E. Andrewes ; W. A. F. Balfour-Browne ; K. G. Blair, D.Sc. ; M. Cameron ; Sir Guy Marshall, C.M.G., D.Sc., F.R.S. te OPINION 243 49 August 1943, however, Mr. Hemming notified Mr. N. D. Riley, who by this time had become Secretary to the Royal Entomological Society of London that the Commission would be glad to receive these recommendations. Thereupon these were submitted to the Commission by Mr. Riley on behalf of the Society on 23rd August 1943. For the purposes of the Commission the present application was treated as consisting of two documents, each an extract from Part 6 of the Generic Names of British Insects, the first from the paper written by Mr. H. E. Andrewes, the second, from the covering Report of the Coleoptera Sub-Committee. The application so constituted, was as follows :— (a) On the type of the genus ‘‘ Carabus ’’ Linnaeus, 1758 (Class Insecta, Order Coleoptera) By H. E. ANDREWES (Leicester) Carabus Linnaeus, 1758. Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 413. Latreille, 1810, Consid. gén. Anim. Crust. Arach. Ins. : 426. Curtis, 1833, Brit. Ent. 10 : pl. 446. Hope, 1838, Col. Man. 2 : 47. Solier, 1848, in Truqui and Baudi. Studi Ent. 1 : 58. C. G. Thomson, 1875, Opusc. Ent. 7 : 640. Andrewes, 1935, Ann. Mag. nat. Hist. (10) 16 : 14. Breuning, 1932—1937, Best.-Tab. Europ. Col. 104—110. Latreille cited as type Carabus auratus Fab., 1801 (=Linn., 1761), a species not originally mentioned by Linnaeus, so that the citation is invalid. Curtis, 1833, and Westwood, 1838, made Carabus violaceus Linn. the type. C. G. Thomson divided the genus into a number of subgenera, and, following Hope, made C. granulatus Linn. the type of his subgenus Carabus s.s. Most recent writers, including Breuning in his revision quoted above, also treat C. granulatus Linn. as the genotype. For the reasons given in my recent paper, it is very desirable that the International Commission should express an Opinion con- firming Hope’s citation and overruling that of Curtis.? 8 The above is an extract from the paper entitled “‘ The Generic names of the British CARABIDAE”’ prepared by Mr. H. E. Andrewes for the Coleoptera Sub-Committee of the Committee on Generic Nomenclature of the Royal Entomological Society of London. At the date in question the composition of the above Sub-Committee and of the above Committee was as shown in footnotes 1 and 2 above, 50 OPINIONS AND DECLARATIONS (b) Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Carabus ’’ Linnaeus, 1758 (Class Insecta, Order Coleoptera) By SIR GUY A. K. MARSHALL, K.C.M.G., D.Sc., F.R.S. (formerly Director, Imperial Institute of Entomology, London), H. E. ANDREWES (Leicester), W. A. F. BALFOUR-BROWNE (formerly Professor of Entomology, Imperial College of Science and Technology, London), K. G. BLAIR, D.Sc. (formerly Deputy Keeper of the Department of Entomology, British Museum (Natural History)), and M. CAMERON (British Museum (Natural History), Zoological Museum, Tring) In the case of the following generic name the strict application of the rules embodied in the International Code of Zoological Nomenclature would cause a serious, and quite unnecessary, disturbance in existing practice and would, in our view, cause greater confusion than uniformity. For this name we are in favour of a partial suspension of the Rules. The object we have in view can be effected by a very slight departure from the strict application of the Code. The portion of Mr. Andrewes’ paper relating to this name was written by him in consultation with us, and we are in full agreement both with his conclusions and with his recommendations, which we summarise as follows :— The Generic Name ‘‘ Carabus ”’ Linnaeus, 1758 The first valid type-citation is that of Carabus violaceus Linnaeus, 1758, by Curtis, 1833. Hope, 1838, cited Carabus granulatus Linnaeus, 1758, and C. G. Thomson, 1875, in his revision of the genus, made this the type of the subgenus Carabus s.s. ; in this action he has been followed by all subsequent writers. To maintain Curtis’ citation would cause considerable confusion in the subgenera of this genus, with a profuse literature, so that it is very desirable that this citation should be set aside in favour of that of Hope. We are therefore of the opinion that in the exercise of the Plenary Power conferred upon them by the International Zoological Congress the International Commission on Zoological Nomenclature should OPINION 243 51 as soon as possible take the steps laid down by the Congress for the promulgation of an Opinion to the following effect :— The name Carabus Linnaeus, 1758 (type Carabus granulatus Linnaeus), is added to the Official List of Generic Names in Zoology. The designation by Curtis, 1833, of Carabus violaceus Linnaeus as the type is therefore to be set aside, and that by Hope, 1838, of Carabus granulatus Linnaeus is to be accepted.* Il—THE SUBSEQUENT HISTORY OF THE CASE 2. As soon as possible after the receipt of this application, to which the Registered Number Z.N.(S.) 158 was given, steps were taken to prepare the two papers in question for publication in the Bulletin of Zoological Nomenclature which had recently been established as a means for bringing to the attention of zoologists applications submitted to the International Com- mission for decision. The papers in this case were sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 28th February 1947 (Andrewes, 1947, Bull. zool. Nomencl.1 : 247 ; Marshall, Andrewes, Balfour-Browne, Blair & Cameron, 1947, ibid. 1 : 248). 3. The publication of this application in the Bulletin elicited a letter of support from Dr. Th. Mortensen (Universitetets Zoologiske 4 The above is an extract from the First Report of the Coleoptera Sub-Committee of the Committee on Generic Nomenclature of the Royal Entomological Society of London. At the time of the submission of the above Report, the Coleoptera Sub-Committee was composed as in footnote 2. At the same period the Committee on Generic Nomenclature was composed as given in footnote 1. On receiving the Sub-Committee’s Report, the Committee on Generic Nomenclature, in their Sixth Report, recommend the Council of the Royal Entomological Society of London to transmit the Coleoptera Sub- Committee’s recommendations to the International Commission on Zoological Nomenclature for favourable consideration. This recommendation was approved by the Council and, on the publication of the Committee’s Sixth Report by. the Society on 15th December 1939, the Sub-Committee’s recom- mendations were forwarded to the International Commission by the Council of the Society. ay OPINIONS AND DECLARATIONS Museum, Copenhagen) who in a letter dated 8th April 1947 indicated his approval of the action proposed by writing the word “ Yes”’. 4. Issue of Public Notices :. On 29th September 1947 a notice of the possible use, by the International Commission on Zoological Nomenclature, of its Plenary Powers in this case was issued to the serial publications prescribed by the Ninth Inter- national Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection so far as concerned the merits of the action proposed, but a letter dated 19th March 1948 was received from Dr. Richard E. Blackwelder (United States National Museum, Washington, D.C., U.S.A.) expressing the view that the material furnished by the applicants was insufficient. III—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Pro- ceedings of the International Commission giving a summary of the remarks made by the Acting President (Mr. Francis Hemming) in introducing this case and of the subsequent discussion (1950, Bull. zool. Nomencl. 4 : 445) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that the only objection which had been lodged against the action proposed in this case was similar to, and came from the same source® as, the objection which the Commission had just considered in the case of the name Bradycellus Erichson, 1837. The Commission would no doubt give due weight to the objection so advanced. In his (the Acting President’s) opinion, it was necessary, however, to bear in mind that the genus Carabus > See paragraph 4. OPINION 243 53 Linnaeus was one of the best known of all the genera in the Class Insecta ; in consequence this generic name fell in the class of names, to applications regarding which the Commission should give special consideration with a view to securing, inter alia, that long-forgotten or long-ignored type selections should not be permitted to introduce instability by disturbing current nomen- clatorial practice. In this case, therefore, his recommendation was that the Commission should use their Plenary Powers to grant the desired relief. GENERAL AGREEMENT was expressed with the views outlined by the Acting President. 6. The decision of the Commission in this case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 11) (1950, Bull. zool. Nomencl. 4 : 445— 446) :-— THE COMMISSION agreed :— (1) to use their Plenary Powers :— (a) to set aside all selections of the type species of the genus Carabus Linnaeus, 1758 (Class Insecta, Order Coleoptera) made previous to the present decision ; (b) to designate Carabus granulatus Linnaeus, 1758, to be the type species of the foregoing genus ; (2) to place the generic name Carabus Linnaeus, 1758, with the type species specified in (1) (b) above, on the Official List of Generic Names in Zoology ; (3) to place, the trivial name granulatus Linnaeus, 1758 (as © published in the binominal combination Carabus granulatus) on the Official List of Specific Trivial Names in Zoology ; (4) to render an Opinion recording the decisions specified in (1) to (3) above. 54 OPINIONS AND. DECLARATIONS 7. The following are the original references for the names which appear in the decision set out in the immediately preceding paragraph :— Carabus Linnaeus, 1758, Syst. nat. (ed. 10) 1 : 413 granulatus, Carabus, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 413. 8. The gender of the generic name Carabus Linnaeus, 1758, referred to in the decision quoted in paragraph 6 above, is masculine. 9. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. > 2h 3), 10. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 11. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 12. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and a OPINION 243 5 invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name’ was substituted for the expression “ trivial name ” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 13. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 14. The present Opinion shall be known as Opinion Two Hundred and Forty-Three (243) of the International Commission on Zoological Nomenclature. Done in London this Fourteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c._.G., C.B.E. Secretary to the Commission VOLUME 5. Part 5. Pp. 57—70 OPINION 244 Suppression, under the Plenary Powers, of the generic name Coriscus Schrank, 1796, for the purpose of validating the generic name Alydus Fabricius, 1803 (Class Insecta, Order Hemiptera) AN! HSON/, Wy JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Five Shillings and Threepence (All rights reserved) Issued 21st May, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 244 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PeTERSs (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. Vokes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JonGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z.-P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UsINGER (University of California, Berkeley, California, U.S.A.). OPINION 244 SUPPRESSION, UNDER THE PLENARY POWERS, OF THE GENERIC NAME ‘‘ CORISCUS ” SCHRANK, 1796, FOR THE PURPOSE OF VALIDATING THE GENERIC NAME ‘*‘ ALYDUS ” FABRICIUS, 1803 (CLASS INSECTA, ORDER HEMIPTERA) RULING :—(1) Under the Plenary Powers, the generic name Coriscus Schrank, 1796 (Class Insecta, Order Hemiptera), is hereby suppressed for the purposes of the Law of Priority but not for those of the Law of Homo- nymy, thereby providing a status of priority for Alydus Fabricius, 1803. (2) The generic name Alydus Fabricius, 1803 (gender of name : masculine) (type species, by selection by Curtis, 1831: Cimex calcaratus Linnaeus, 1758), is hereby placed on the Official List of Generic Names in Zoology as Name No. 670. (3) The name Coriscus Schrank, 1796, as suppressed under (1) above, is hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology as Name No. 64. (4) The entry on the Official List of Generic Names in Zoology of the name Nabis Latreille, [1802—1803], made under the directions given in Opinion 104, is hereby confirmed. (5) The specific name calcaratus Linnaeus, 1758, as published in the combination Cimex calcaratus, is hereby placed on the Official List of Specific Names in Zoology as Name No. 63. 60 OPINIONS AND DECLARATIONS I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2_ This Report dealt exclusively with the generic names of the British Hemiptera-Heteroptera. In the first of two Appendices annexed to the Sub-Committee’s Report were two proposals for the use, by the International Commission, of its Plenary Powers. The first of these proposals was concerned with the generic name Alydus Fabricius, 1803, and it is this name which forms the subject of the present Opinion. The recommendations contained in the Hemiptera Sub-Commit- tee’s Report were formally submitted to the International Com- mission by Mr. D. N. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The case of the name Alydus Fabricius was dealt with twice in the foregoing work, first, in the paper written by Dr. W. E. China (: 231—233) annexed to Sub-Committee’s Report, and, second, by the Sub- Committee itself (: 214215). These two passages are reproduced below. It must be noted however that, as explained in paragraph 2 below, the actual terms of the proposal prepared by the Sub- Committee for the consideration of the International Commission (i.e. the proposal set out in the last paragraph of the second of the two documents given below) were revised by the Sub-Committee in 1944 before the Sub-Committee’s application was printed in the Bulletin of Zoological Nomenclature. It was accordingly this revised proposal, the text of which is given in paragraph 2 of the present Opinion which was submitted to the International - The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the time of the com- pletion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). to The Hemiptera Sub-Committee at the time of the submission of this Report was composed of : Dr. W. E. China; Mr. E. E. Green. ee eS OPINION 244 61 Commission, and not the original proposal published in The Generic Names of British Insects, as set out below :— (a) On the status of the name ‘‘ Alydus ’’ Fabricius, 1803 (Class Insecta, Order Hemiptera) By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History) ) Alydus Fabricius, 1803 Fabricius, 1803, Syst. Rhyng. : 251. Curtis, 1831, Brit. Ent. : 369. Type (fixed by Curtis)=Cimex calcaratus Linnaeus, 1758. It is necessary to discuss here the status of the genus Coriscus Schrank, 1796 (Sammi. nat. phys. Aufsdze 1 : 121), which Kirkcaldy and Stichel used in place of A/ydus Fabricius. This genus was originally based on a single species represented by figures 2 & 3 of Tab. 123 in Schaeffer, (1776—1779), Icon. Insect. Ratisbon. Schrank declared, however, that these figures did not represent Cimex calcaratus Linnaeus as had been stated by Fabricius and De Geer but an insect which he proceeded to describe (under the new generic name Coriscus) as ‘‘ Moéhren- sichelwanze’’. His description of the new genus and species differed from Cimex calcaratus Linnaeus in several important structural points, notably in the sickle-shaped curve of the rostrum, in the tri- instead of quadri-segmentation of the rostrum, in the unarmed femora, and in the smaller size. One of Schaeffer’s figures certainly does show a strongly curved rostrum quite different from that of Alydus calcaratus, but in colour the figure is quite a reasonable representation of the Linnaean species. Schrank’s colour description of the species also agrees well with A/lydus calcaratus Linnaeus. In 1801 Schrank (Fauna Boica 2 (1) : 99) applied the Latin name Coriscus dauci to his ‘““ Moéhren- sichelwanze ’’ which automatically became the genotype of Coriscus in spite of the fact that Schrank at the same time included a new species Coriscus crassipes and suggested that Cimex subapterus De Geer also belonged to this genus. In 1888 Reuter (Act. Soc. Sci. Fenn. 15 : 759) fixed the type of Coriscus as C. dauci Schrank 1801, thereby ending any argument as to the validity of the above automatic citation. Reuter, however, although he admitted important structural differences, sank Coriscus dauci Schrank, 1801 as a synonym of Alydus calcaratus Linnaeus. At the same time he retained the name A/ydus Fabricius, 1803, although Coriscus, 1796, and, 1801, had priority. Kirkaldy 1900 (Entomologist 33 : 263) also asserted that ‘‘ dauci=calcaratus ” and that consequently A/ydus Fabricius, 1803, was homotypical with Coriscus Schrank, 1796. In this he was followed by Stichel, 1925 (ill. Bestimm. Deuts. Wanzen 2 ; 46). Nevertheless, I do not see how 62 OPINIONS AND DECLARATIONS it is possible to synonymise Coriscus dauci Schrank with Cimex cal- caratus Linnaeus in the face of such distinct structural differences and having regard to the author’s definite statement to the effect that his ‘“* Mohrensichelwanze ”’ was not Cimex calcaratus Linnaeus. I consider that it is better to ignore his colour description of Coriscus dauci, especially as in 1801 he associated with it a new species Coriscus crassipes which has since been synonymised with Nabis ferus (Linnaeus, 1758) by Reuter. This brings us to the school of thought which would associate Coriscus Schrank with the NABIDAE. Latreille in [1802— 1803]® (Hist. nat. Crust. Ins. 3: 249), by stating “ Voyez le genre Coriscus de Schr., ’’ suggested that his new genus Nabis was identifiable with Schrank’s genus. Stal 1873 (Enum. Hemipt. 3 : 112) followed up this suggestion and replaced Nabis Latreille, [1802—1803]8, by Coriscus Schrank, 1796, placing Cimex ferus and its allies in the typical subgenus Coriscus. This in effect made Cimex ferus Linnaeus (=Cimex vagans Fabricius, 1787=Miris vagans Fabricius, 1794) the genotype, since Stal was the first real reviser of Coriscus, and Miris vagans Fabr. was the only recognisable original species in the group of species which he associated under the typical subgenus. The fact that Latreille in 1807 (Gen. Crust. Ins. 3 : 117) placed Coriscus in his omnibus genus Coreus (with Alydus) need not affect the case. _ The generic description of Coriscus certainly agrees better with Nabis than with the Coreid genus A/ydus, but unfortunately no known German Nabid agrees with Schrank’s colour description of Coriscus dauci. Summarising, there are thus three alternatives :— 1. To synonymise Coriscus dauci Schrank, 1801, with Cimex calcaratus Linnaeus, 1758, and thereby sink A/ydus Fabricius, 1803, as a synonym of Coriscus Schrank, 1796 (as done by Reuter, Kirkaldy, Stichel) ; | 2. To reject Coriscus dauci Schrank, 1801, as genotype of Coriscus Schrank, 1796, on the ground of being unidentifiable and to select Coriscus crassipes Schrank, 1801 (=Cimex ferus Linnaeus, 1758) as the genotype, at the same time sinking Schrank’s genus as a synonym of Nabis Latreille, [1802—1803]8, which has been placed on the Official List of Generic Names (Opinion 104, 1928) ; 3. To set aside the genus Coriscus Schrank, 1796, and, 1801, until the genotype Coriscus dauci Schrank, 1801, can be recognised. Unless 3 Griffin (1938, J. Soc. Bibl. nat. Hist. 1 : 157) has shown that notwithstanding the fact that the title-page of the volume in which the name Harpalus Latreille was published bears the date ‘““ An X ”’ of the French Revolutionary Calendar (i.e. Sept. 1801—Sept. 1802), that volume was not in fact published until some time in “ An XI” (i.e. Sept. 1802—Sept. 1803). | OPINION 244 63 a type specimen of Coriscus dauci Schrank exists, this would be tanta- mount to invalidating Coriscus since as a member of the very well- known German fauna, dauci would, if possible, have been identified long ago. -(b) Proposed suspension of the ‘* Régles ’’: for ‘‘ Alydus ’’ Fabricius, 1803, and ‘‘ Coriscus’’ Schrank, 1796 (Class Insecta, Order Hemiptera) By E. E. GREEN (Camberley) and W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History) ) We are of the opinion that greater confusion than uniformity would result if Alydus Fabricius, 1803 (type Cimex calcaratus Linnaeus, 1758, fixed by Curtis, 1831, British Entomology : 369) were replaced by the earlier name Coriscus Schrank, 1796. Apart from the fact that Alydus Fabricius had been in continuous use prior to 1925 when Stichel (lust. Bestimm. Deutsch. Wanzen 2 : 46), following Kirkaldy 1900 (Entomologist 33 : 263), replaced it by Coriscus Schrank, 1796, the genus Coriscus is doubtfully identical with Alydus Fabricius. Coriscus Schrank, 1796 (Sammi. nat. phys. Aufsdze 1 : 121) is monobasic, since the only species originally included in the genus was the Mohren- sichelwanze, later named by Schrank, 1801 (Fauna Boica 2 (1) : 99) as Coriscus dauci. The genotype of Coriscus must therefore be Coriscus dauci. Schrank’s Mohrensichelwanze was based on figures 2 and 3 of Tab. 123 in Schaeffer, [1776—1779], Icon. Ins. Ratisbon. Schrank actually declared that these figures did not represent Cimex calcaratus Linnaeus (the genotype of A/ydus) and his description of the new genus and species differed from Cimex calcaratus Linnaeus in several impor- tant structural points. Infact, Coriscus Schrank was referred by Latreille, 1802, and Stal, 1873, to the family NABIDAE, the latter using it instead of Nabis Latreille, [1802—1803].4. The genus Nabis Latreille, however, has been placed by the International Commission on the Official List of Generic Names. Coriscus Schrank therefore must either replace A/ydus Fabricius, 1803 ; or be sunk as a synonym of Nabis Latreille, [1802—1803] ; or be set aside as based on an unidenti- fiable species. We are of the opinion that it is highly desirable that in the exercise of the Plenary Power conferred on them by the International Zoological 4 For a note on the date here assigned to the name Nabis Latreille, see footnote 3. 64 OPINIONS AND DECLARATIONS Congress, the International Commission on Zoological Nomenclature should as soon as possible take the steps laid down by the Congress for the promulgation of an Opinion to the following effect :— Under suspension of the Rules (i) the name Coriscus Schrank, 1796, is hereby suppressed and (ii) Alydus Fabricius, 1803 (type : Cimex calcaratus Linnaeus, 1758, designated by Curtis, 1831) is hereby placed on the Official List of Generic Names in Zoology. IlL—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, the papers relating to the present case were given the Registered Number Z.N.(S.) 160, and as soon as possible steps were taken to prepare this application for publication in the then newly established Bulletin of Zoological Nomenclature. In so preparing this application, Mr. Hemming noted that the applicants had realised the connection between the name Coriscus Schrank, 1796 (which it was their object to prevent from supersed- ing Alydus Fabricius) and the name Nabis Latreille, but had been under the erroneous impression that, because this name had been placed on the Official List of Generic Names in Zoology (by Opinion 104), it could not in any circumstances be replaced by a senior synonym. In order to clear up this misconception, Mr. Hemming (on 15th September 1944) wrote to Dr. China, explaining that, when a name was placed on the Official List, it possessed absolute protection from senior synonyms only if it had been expressly validated by the Commission under its Plenary Powers and that, as Nabis Latreille had been placed on that List on the assumption that it was the oldest available name for the genus concerned and without resort to the Plenary Powers, it did not enjoy absolute protection but could be called in question if an available senior synonym were found to exist. In subsequent correspondence it was agreed between Mr. Hemming on the one hand and Dr. China and Mr. Green on the other hand that the only certain way of securing complete protection both for the name Alydus Fabricius and for the name Nabis Latreille would be to obtain from the International Commission a decision sup- pressing the name Coriscus Schrank under its Plenary Powers. Accordingly, Dr. China and Mr. Green decided to amend their OPINION 244 65 recommendation in this sense, and on 17th November 1944 they submitted the revised proposal set out in the last paragraph of the second of the two documents quoted in the first paragraph of the present Opinion. 3. The present application, amended as shown in the foregoing paragraph, was sent to the printer at the close of 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 273—274; Green & China, 1947, ibid. 1 : 275). 4. Comment received from Dr. R. I. Sailer (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) : After the present applica- tion had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailer (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945 criticising the proposal submitted by Mr. Green and Dr. China in 1944 in Part 8 of The Generic Names of British Insects for the use of the Plenary Powers for the purpose of preserving the name Alydus Fabricius as against the name Coriscus Schrank. In the same letter Dr. Sailer referred to the connection with the present case of the name Nabis Latreille which (as noted by Dr. China) had been placed on the Official List of Generic Names in Zoology by the Commission’s Opinion 104. Dr. Sailer’s letter was as follows :—® Another matter which I should like to discuss is the proposed suspension of the Rules in the case presented by Green and China (Generic Names of British Insects, 1943, pt. 8, pp. 214—215) pertaining 5 As Dr. Sailer’s letter was written before the publication in the Bulletin of Zoological Nomenclature of the Green/China proposal in its definitive form, he was inevitably unaware that the applicants had revised their application in such a way that the position of the name Nabis Latreille on the Official List was fully protected. Accordingly, in order that Dr. Sailer might be fully informed of the latest stage of the present proposal, Mr. Hemming, in replying on 16th February 1945 to his letter of 12th January, wrote :— When I recently re-examined this case for the purpose of preparing it for publication in the Bulletin of Zoological Nomenclature, 1 observed that the case of Nabis was not adequately dealt with in the case as presented. I had some corres- pondence on this subject with Mr. China, with the result that he and Mr. Green agreed to a re-wording of the recommendation in this case to cover this aspect of the question and to ensure that the validity of Nabis shall not be impaired ”’. 66 OPINIONS AND DECLARATIONS to Alydus Fabricius, 1803. While Coriscus Schrank, 1796, has not been fixed in economic literature to any great extent it has been used con- sistently in taxonomic treatments since 1925, and some confusion will inevitably result from a return to Alydus. It is proposed by Green and China that the present type of Coriscus, C. dauci Schrank, 1801, be rejected on grounds of being based on an unidentifiable type, and that Coriscus crassipes Schrank, 1801, be accepted in its place. I trust that in taking such action the Commission would be aware that Nabis Latreille, 1802, is on the Official List of Generic Names (Opinion 104) because, as Stiles states, “‘ The Secretary has personally checked these names and believes they are all nomenclatorially available and valid, and that, therefore, they can be adopted in harmony with the Rules instead of as Nomina Conservanda”’. From this it is clear that further action with regard to Nabis will be necessary in event of favorable action on the case concerning Alydus as proposed by Green and China. As for the rejection of dauci Schrank, 1801, as genotype of Coriscus, I should like to point out that at least two important references pertain- ing to this problem are not cited by Green and China. Reuter, 1888 (Revisio Synonymica Heteropterorum Palaearcticorum Wl, page 534 of Acta Societatis Scientiarum Fennicae, Tomus 15, Helsingfors), sank C. dauci as a synonym of Alydus calcaratus (L.). It is true that Reuter admitted that certain discrepancies existed. Kirkaldy, 1900, seems to have followed this action rather than to have initiated the synonymy directly as suggested by Green and China. The second reference is that by Horvath, 1917 (Ann. Mus. Nat. Hung. 15 : 378). Horvath’s action in synonymising dauci and calcaratus here appears to have been independent of either that of Reuter or Kirkaldy. His only qualifying remark is that Schrank’s description was based on a mutilated specimen. By way of summary, it is my opinion that since Coriscus has in the last twenty-five years become well established in the literature of Europe and the United States; that since its suppression, as proposed by Green and China, will endanger Nabis, a large and important genus in a different family ; and that since the identity of the genotype in question has been established by two of our most noted authorities in the Hemiptera, definite disservice to the stability of hemipterous nomenclature will result should favorable action be taken by the Commission on the case concerning A/ydus proposed by Green and China. 5. Comment received from Dr. Th. Mortensen (Universitetets Zoologiske Museum, Copenhagen) : The publication of the present application in the Bulletin elicited a letter of support from Dr. Th. Mortensen (Universitetets Zoologiske Museum, Copenhagen) who on 8th April 1947 wrote :—‘‘ Coriscus Schrank to be suppressed : Yes PS OPINION 244 67 6. Issue of Public Notices: On 14th September 1947 a notice of the possible use, by the International Commissicn on Zoological Nomenclature, of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth Inter- national Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection to the action proposed. I11—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 7. The present application was considered by the International Commission. on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Pro- ceedings of the International Commission, setting out the decision reached by it in this case at the foregoing meeting (Paris Session, 14th Meeting, Conclusion 19) (1950, Bull. zool. Nomencl. 4 : 464— 467) :— THE COMMISSION agreed :— (1) to use their Plenary Powers :— (a) to suppress the name Coriscus Schrank, 1796 (Class Insecta, Order Hemiptera) for the purposes of Article 25, though not for those of Article 34 ; (b) to validate the generic name A/ydus Fabricius, 1803 (Class Insecta, Order Hemiptera) ; (2) to place the generic name Alydus Fabricius, 1803 (type species, selected by Curtis, 1831: Cimex calcaratus Linnaeus, 1758) on the Official List of Generic Names in Zoology ; (3) to place the name Coriscus Schrank, 1796, on the Official Index of Rejected and Invalid Generic Names in Zoology ; 68 OPINIONS AND DECLARATIONS (4) to confirm the entry on the Official List of Generic Names in Zoology of the name Nabis Latreille [1802—1803] ; (5) to place the trivial name calcaratus Linnaeus, 1758 (as published in the binominal combination Cimex cal- caratus) on the Official List of Specific Trivial Names in Zoology ; (6) to render an Opinion recording the decisions specified in (1) to (5) above. 8. The original references for the names which appear in the decision set out in the immediately preceding paragraph are as follows :— Alydus Fabricius, 1803, Syst. Rhyng. : 251 calcaratus, Cimex, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 450 Coriscus Schrank, 1796, Sammi. nat. phys. Aufsdze : 121. The reference to the type-selection by Curtis for Alydus Fabricius, 1803, is :—Curtis, 1831, Brit. Ent. : pl. 369. 9. The gender of the generic name Alydus Fabricius, 1803, referred to in the decision quoted in paragraph 7 above, is masculine. 10. The decision in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl.5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. OPINION 244 69 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name’ and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Forty-Four (244) of the International Commission on Zoological Nomenclature. Done in London this Fourteenth day of December, Nineteen Hundred and Fifty-Three. Secertary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER. NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, CM.G., C.B.E. Secretary to the Commission VOLUME 5. Part 6. Pp. 71—80 OPINION 245 Designation, under the Plenary Powers, of a type species for the nominal genus Salda Fabricius, 1803 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage ENN HSONi4 JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Three Shillings and Ninepence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 245 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDA™m (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCO (University of Parma, Italy). Professor J. R. DyYMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. aan E. Vokes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEwsKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold KirsBy (University of California, Berkeley, California, U.S.A.). Dr. Henning LeMcuE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILeEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Protea int L. USsINGER (University of California, Berkeley, California, OPINION 245 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS “‘SALDA’’ FABRICIUS, 1803 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for Salda Fabricius, 1803 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Cimex littoralis Linnaeus, 1758, is hereby designated as the type species of this genus. (2) The generic name Salda Fabricius, 1803 (gender of name: feminine), with the type species designated under (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 671. (3) The specific name /Jittoralis Linnaeus, 1758, as published in the combination Cimex littoralis, is hereby placed on the Official List of Specific Names in Zoology as Name No. 64. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Report contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2. This Report - The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of : Dr. W. E. China; Mr. E. E. Green. nr 74 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. In the first of two Appendices annexed to the Sub-Committee’s Report were two proposals for the use, by the International Commission, of its Plenary Powers. ‘The first of these proposals was concerned with the name Alydus Fabricius, 1803, the Commission’s decision on which has been given in Opinion 244, the second, with the name Salda Fabricius, 1803, which forms the subject of the present Opinion. The recommenda- tions contained in the Hemiptera Sub-Committee’s Report were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The case of the name Salda Fabricius was dealt with twice in the foregoing work, first, in the paper written by Dr. W. E. China (: 277—278) annexed to the Sub- Committee’s Report, and, second, by the Sub-Committee itself (: 215). By agreement with the applicants, the two passages referred to above were treated by the International Commission as together constituting the application submitted in regard to the present case. These documents are reproduced below :— On the status of the name ‘‘ Salda ’’ Fabricius, 1803 (Class Insecta, Order Hemiptera) By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Salda Fabricius, 1803 Fabricius, 1803, Syst. Rhyng. : 113. Blanchard, [1838], in Cuvier, Régne anim. (Disciples’ ed.) Atlas : pl. 90. Unfortunately the first valid genotype fixation of the genus Salda Fabricius, 1803, appears to be that of Blanchard 1838, in the Disciples’ edition of Cuvier’s Régne animal, Atlas plate 90. On the title-page of this work it is stated, ‘“ Edition accompagnée de Planches gravées représentant les types de tous les genres ’’. Since under Salda only a single species, Salda grylloides Linnaeus (= Cimex grylloides Linnaeus, 1761), is figured, this species becomes the genotype of Salda Fabricius, 1803, which is hereby transferred to the family LYGAEIDAE and replaces Geocoris Fallén, 1814, a non-British genus. The dates of the Disciples’ edition of Cuvier were published by Sherborn in 1922 (Ann. — Mag. nat. Hist. (9) 10 : 555—556) and the date for the Heteroptera is 1838. In 1848 Blanchard (in Orbigny, Dict. univ. Hist. nat. 11 : 311 © OPINION 245 15) and 312) revised his earlier type fixation and cited Salda littoralis Fabricius, 1803=Cimex littoralis Linnaeus, 1758. The dates of this work have been verified by Sherborn and Palmer, 1899 (Ann. Mag. nat. Hist. (8) 3 : 350) and unfortunately for the familiar name Salda, the date of volume 11 is shown to be 1848: that is, ten years after Blanchard’s original type fixation. Unless, therefore, the International Commission agree to invalidate Blanchard’s first type citation in the Disciples’ edition of Cuvier, the name Salda goes to the LYGAEIDAE and replaces the well-known name Geocoris Fallén. Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Salda ’’ Fabricius, 1803 (Class Insecta, Order Hemiptera) By E. E. GREEN (Camberley) and W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) We are of the opinion that it is highly undesirable to accept the first valid type citation for the genus Sa/da Fabricius, 1803, viz. that of Blanchard, 1838 (Cuvier, Le Régne animal, Disciples’ edition : pl. 90) whereby the type is fixed as Salda grylloides Linnaeus= Cimex grylloides Linnaeus, 1761. This would mean that the well-known name Salda would need to be transferred to another family (LYGAEIDAE) and the family SALIDAE left without an available family name. In addi- tion the well-known Lygaeid name Geocoris Fallén would sink. as a synonym of Salda Fabricius, 1803. We are emphatically of the opinion that the foregoing change would lead to greater confusion than uniformity. Accordingly we recommend that in the exercise of the Plenary Powers conferred on them by the International Zoological Congress, the International Commission on Zoological Nomenclature should as soon as possible take the steps laid down by the Congress for the promulgation of an Opinion to the following effect :— Blanchard’s original 1838 (in Cuvier, Le Régne animal, Disciples’ edition : pl. 90) citation of Cimex grylloides Linnaeus, 1758, as type of Salda Fabricius, 1803, Syst. Rhyng. : 113 is to be rejected and replaced by Blanchard’s 1848 (in Orbigny, Dict. univ. Hist. nat. 11 : 311 and 312) citation of Cimex littoralis Linnaeus, 1758, The name Salda Fabricius, 1803 (type Cimex littoralis Linnaeus. 1758) is hereby added to the Official List of Generic Names in Zoology and is not to be transferred from the SALIDAE to the LYGAEIDAE to replace Geocoris Fallén. 76 OPINIONS AND DECLARATIONS Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, the papers relating to the present case were given the Registered Number Z.N.(S.) 161, and as soon as possible steps were taken to prepare this application for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1:276; Green & China, 1947, ibid. 1 : 276—277). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945 commenting on the proposals submitted by the Hemiptera Sub-Committee as published by the Royal Entomological Society of London in Part 8 of The Generic Names of British Insects. After criticising the application sub- mitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :—“‘ I should like to add that in my opinion all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. The publication of the present application in the Bulletin elicited a letter of support from Dr. Th. Mortensen (Universitetets Zoologiske Museum, Copenhagen) who on 8th April 1947 wrote : ** Salda littoralis (Linn.): Yes”’. 5. Issue of Public Notices: On 14th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth Inter- national Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection, so far as concerned the merits of the action proposed, but a letter dated 19th March 1948 was received from Dr. Richard E. Blackwelder (United States National Museum, Washington, D.C., U.S.A.) expressing the view that the material furnished by the applicants was insufficient. OPINION 245 Ti III.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 6. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- theatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, giving a summary of the introductory remarks by the Acting President (Mr. Francis Hemming) and of the ensuing discussion (1950, Bull. zool. Nomencl. 4 : 468) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that the present application, like that relating to the name Alydus Fabricius, which the Commission had just considered, had been submitted to the Commission by the Royal Entomo- logical Society of London, on the recommendation of their Committee on Generic Nomenclature, acting on the advice of the Hemiptera Sub-Committee, the members of which were Dr. China and Mr. Green. The application had been advertised subsequent to publication in the Bulletin. The only objection received had come from Dr. Richard Blackwelder (United States National Museum, Washington, D.C.) who considered that the grounds advanced in the application were insufficient to justify the use by the Commission of their Plenary Powers. IN DISCUSSION the view was expressed that the application submitted contained sufficient evidence as to the likelihood of confusion arising if the Régles were strictly applied in this case and that the application should therefore be granted. 7. The decision of the International Commission in this case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 20) (1950, Bull. zool. Nomencl. 4 : 467—469) :— 78 OPINIONS AND DECLARATIONS THE COMMISSION agreed :— (1) to use their Plenary Powers :— (a) to set aside all selections of a type species for the genus Salda Fabricius, 1803 (Class Insecta, Order Hemiptera) made prior to the present decision ; (b) to designate Cimex littoralis Linnaeus, 1758, to be the type species of the foregoing genus ; (2) to place the generic name Salda Fabricius, 1803, with the type species designated in (1)(b) above, on the Official List of Generic Names in Zoology ; (3) to place the trivial name Jittoralis Linnaeus, 1758 (as published in the binominal combination Cimex littoralis) on the Official List of Specific Trivial Names in Zoology ; (4) to render an Opinion recording the decisions specified in (1) to (3) above. 8. The following are the original references for the names which appear in the decision set out in the immediately preceding paragraph :— littoralis, Cimex, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 442 Salda Fabricius, 1803, Syst. Rhyng. : 113. 9. The gender of the generic name Salda Fabricius, 1803, referred to in the decision quoted in paragraph 7 above, is feminine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5: 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners OPINION 245 719 present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “trivial” appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 80 OPINIONS AND DECLARATIONS 15. The present Opinion shall be known as Opinion Two Hundred and Forty-Five (245) of the International Commission on Zoological Nomenclature. Done in London this Fifteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature ' FRANCIS HEMMING Printed in England by MretcaLre & Cooprer Limitrp, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 7. Pp. 81—90 OPINION 246 Designation, under the Plenary Powers, of a type species for the nominal genus Gastrodes Westwood, 1840 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage ENN HSON/,4 YW JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Three Shillings and Ninepence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 246 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyYMOND (University of Toronto, Canada). Dr. James L. PrErErRS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. oes E. VoKes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held im Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirspy (University of California, Berkeley, California, U.S.A.). Dr. Henning LemMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEY (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). po cares L. Usincer (University of California, Berkeley, California, .S.A.). “= OPINION 246 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ‘““GASTRODES”” WESTWOOD, 1840 (CLASS INSECTA, ORDER HEMIPTERA), IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Gastrodes Westwood, 1840 (Class Insecta, Order Hemiptera), made prior to the present Ruling are hereby set aside and Gastrodes abietum Bergroth, 1914, is hereby designated as the type species of this genus. (2) The generic name Gastrodes Westwood, 1840 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 672. (3) The specific name abietum Bergroth, 1914, as published in the combination Gastrodes abietum, is hereby placed on the Official List of Specific Names in Zoology as Name No. 65. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report » The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr. W. E. China; Mr. E. E. Green. LS) 84 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annex II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The fourth of the names in question was Gastrodes Westwood, 1840, with which the present Opinion is concerned. The recom- mendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the Inter- national Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Gastrodes ’’ Westwood, 1840 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Gastrodes Westwood, 1804 Original reference :—Westwood, 1840, Introd. mod. Class. Ins. 2 (Syn. Gen. Brit. Ins.) : 122. Author by whom the type in question was designated and reference:— The genus is monobasic. Name of species so designated as type :—Monobasic type is Cimex abietis Linnaeus, 1758. Species intended by the original author of the genus when employing the specific name in question :—Cimex abietis (Linnaeus) Westwood, 1840, nec Linnaeus, 1758, i.e., the species the valid name for which is Cimex abietum Bergroth, 1914, Wien. ent. Ztg. 33 : 183. Discussion of the case :—Westwood based his genus on a single species which he (in common with all authors up to 1898) assumed to : ; . OPINION 246 85 be Cimex abietis Linnaeus, 1758. Horvath, however, in 1898, Rev. Ent., Caen, 17 : 277, showed conclusively that the true Cimex abietis Linnaeus is identical with Lygaeus erraticus Fabricius, 1794, a species at that time referred to the genus Eremocoris Fieber, 1860, and since fixed as the type of that genus by Distant, 1903, Faun. Brit. Ind. Rhyn. 2:92. In consequence the species Cimex abietis Westwood et auct. remained without a name and was re-named Cimex abietum by Bergroth, 1914, Wien. ent. Ztg. 33: 183. The type of Gastrodes Westwood therefore is not the wrongly identified Cimex abietis Linnaeus, 1758, but Cimex abietum Bergroth, 1914. If it were necessary under the Code to assume that Westwood’s determination of this species was correct, Westwood’s designation of Cimex abietis Linnaeus as the type of Gastrodes Westwood would involve the transfer of that name to the genus at present known as Eremocoris Fieber, 1860, while the genus at present known as Gastrodes would become Oimoctes Gistel, 1848. Such action would not only cause confusion in the nomenclature of these genera but would run directly counter to Westwood’s intentions and would be open to the strongest objection in that it would involve the designation as type of Gastrodes of a species disagreeing completely with the generic descrip- tion. It is for this reason that I have disregarded Westwood’s citation on Cimex abietis Linnaeus as the type of the genus, accepted Cimex abietum Bergroth, and treated Cimex abietis Linnaeus as an Eremocoris. Action by the International Commission desired :—A declaration that the action of Westwood in citing Cimex abietis Linnaeus, 1758, as the type Gastrodes Westwood, 1840, is invalid, since that species was not included in the genus, the species which he there designated under that name being in fact another species generically distinct from Cimex abietis Linnaeus and since named Cimex abietum Bergroth, 1914. In consequence the type of the genus Gastrodes Westwood, 1840, is Cimex abietum Bergroth, 1914, the sole species originally included by Westwood in the genus. Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but owing to difficulties arising from paper rationing, shortage of labour at the printing 86 OPINIONS AND DECLARATIONS works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 283). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices: On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publication of these notices elicited no objection to the action proposed. Ill.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species OPINION 246 87 of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers, in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in con- sequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4: 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- theatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion which took place on the present case (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144), dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. ALTERNATE COMMISSIONER ROBERT L. USINGER (U.S.A.) said that, as a hemipterist, he was familiar with the problem presented by the name Gastrodes Westwood and was in full agreement with the conclusions reached by Dr. China. He 88 OPINIONS AND DECLARATIONS accordingly supported the proposal that the Plenary Powers should be used to designate Cimex abietum Bergroth, 1914, as the type species of this genus. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, i4th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—473) :— THE COMMISSION agreed :— (1) to use their Plenary Powers :— (a) to set aside the designation by Westwood of Cimex abietis Linnaeus, 1758, as the type species of the monotypical genus Gastrodes Westwood, 1840 (Class Insecta, Order Hemiptera) ; (b) to designate Gastrodes abietum Bergroth, 1914, to be the type species of the foregoing genus ; (2) to place the generic name Gastrodes Westwood, 1840, with the type species specified in (1)(b) above, on the Official List of Generic Names in Zoology ; (3) to place the trivial name abietum Bergroth, 1914 (as published in the combination Gastrodes abietum), on the Official List of Specific Trivial Names in Zoology ; (4) to render an Opinion recording the decisions specified in (1) to (3) above ; OPINION 246 89 7. The following are the original references for the names which appear in the decision set out in the immediately preceding paragraph :— abietum, Gastrodes, Bergroth, 1914, Wien. ent. Ztg. 33 : 183 Gastrodes Westwood, 1840, Introd. mod. Class. Ins. 2 (Syn. Gen. neit.hins.) = 122. 8. The gender of the generic name Gastrodes Westwood, 1840, referred to in the decision quoted in paragraph 6 above, is masculine. 9. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. aye 115). 10. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 11. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 12. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “‘ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “trivial” appearing also in the title of the Official Index reserved for recording rejected 90 OPINIONS AND DECLARATIONS and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 13. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 14. The present Opinion shall be known as Opinion Two Hundred and Forty-Six (246) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by MercaLre & CoopEerR LimiTED, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 8. Pp. 91—102 OPINION 247 Designation, under the Plenary Powers, of a type species for the nominal genus Aquarius Schellenberg, 1800 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage SUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 247 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. i E. VoKEs (United States Geological Survey, Washington, D.C., USS. Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsour (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RiLey (British Museum (Natural History), London, England). Professor Ragnar SpArRcK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor a L. Ustncer (University of California, Berkeley, California, ..A.). OPINION 247 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ** AQUARIUS ” SCHELLENBERG, 1800 (CLASS INSECTA, ORDER HEMIPTERA), IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—_(1) Under the Plenary Powers all type- selections for the nominal genus Aquarius Schellenberg, 1800 (Class Insecta, Order Hemiptera), made prior to the present Ruling are hereby set aside and Cimex najas De Geer, 1773, is hereby designated as the type species of this genus. (2) The generic name Aquarius Schellenberg, 1800 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 673. _ (3) The specific name najas De Geer, 1773, as published in the combination Cimex najas, is hereby placed on the poe List of Specific Names in Zoology as Name No. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr, W, E. China; Mr. E. E. Green. w 94 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera - Heteroptera. Annexed to the Sub-Committee’s Report as Annexe II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The tenth of the names in question was Aquarius Schellenberg, 1800, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘* Regles ’’ for ‘‘ Aquarius ’’ Schellenberg, 1800 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Aquarius Schellenberg, 1800 Original reference :—Schellenberg, 1800, Geschl. Land. u. Wass. Wanz. Schweiz. : 25. Author by whom the type in question was designated and reference:— Kirkaldy, 1906, Trans. amer. ent. Soc. 32 : 155. Name of species so designated as type :—Gerris paludum Schellenberg, Species intended by the original author of the genus when employing the specific name in question :—Gerris paludum (Fabricius) Schellen- berg, 1800, nec Fabricius, 1794, i.e., the species the valid name for which is Cimex najas De Geer, 1773, Mém. Hist. Ins. 3 : 313. Discussion of the case :—Schellenberg included (figured) two species in his genus Aquarius, Gerris paludum Fabricius, 1794, and Gerris stagnorum_ Fabricius, 1794 (i.e., Cimex stagnorum Linnaeus, 1758). OPINION 247 95 Kirkaldy, 1906, fixed Aguarius paludum Schellenberg, 1800, as the type, indicating at the same time that it was actually Gerris canalium Dufour, 1833, i.e., Cimex najas De Geer, 1773. Schellenberg’s figure indicated an apterous species, whereas Gerris paludum is normally macropterous, so that it would appear to represent Cimex najas De Geer and not Gerris paludum Fabricius. If it were necessary under the Code to assume that Schellenberg’s determination of this species was correct, no change would be necessary in the generic nomenclature since both Cimex najas De Geer and Gerris paludum Fabricius belong to the same genus. A declaration in this case is, however, desirable, since at any time the discovery of further species might warrant the splitting of Aquarius into two genera, in which case it is essential that the type of the original genus should be correctly fixed. Action by the International Commission desired :—A declaration that the type of Aquarius Schellenberg, 1800, is Cimex najas De Geer, 1773, Mém. Hist. Ins. 3 : 313, and not Gerris paludum Fabricius, 1794, Ent. Syst. 4 : 188, the included species, since the latter does not agree with Schellenberg’s figure and was clearly misidentified by him. Il—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications Were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 277—278). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of 96 OPINIONS AND DECLARATIONS London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica-_ tion of these notices elicited no objection to the action proposed. Il—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Réegles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing - é ' OPINION 247 97 provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithédtre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any such adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse 98 OPINIONS AND DECLARATIONS comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— e e© © © © © © © © © © © ew ee ew ee ew ee 8 (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s file Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (1) (2) Aquarius Schellenberg, Cimex najas De Geer, 1800 EET) Ce} OPINION 247 99 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 100 OPINIONS AND DECLARATIONS 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— Aquarius Schellenberg, 1800, Geschl. Land. u. Wass. Wanz. Schweiz. : 25 najas, Cimex, De Geer, 1773, Mém. Hist. Ins. 3 : 313 9. The gender of the generic name Aquarius Schellenberg, 1800, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The foregoing decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th ie 1948 (1950, Bull. zool. Nomencl. 5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial” appearing also in the title of the Official Index reserved for recording rejected and ee ee ee eee OPINION 247 101 invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Forty-Seven (247) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, CM.G., CBE. Secretary to the Commission VOLUME 5. Part 9. Pp. 103—114 OPINION 248 Designation, under the Plenary Powers, of a type species for the nominal genus Bellocoris Hahn, 1834 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage ENN HSONigy JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Tssued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 248 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorRTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PeTers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harel E. Vokes (United States Geological Survey, Washington, D.C., .S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso Esaki (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirspy (University of California, Berkeley, California, U.S.A.). Dr. Henning LemcuHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Ritey (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Erol seet Robert L. UstINGer (University of California, Berkeley, California, .S.A.). OPINION 248 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ** BELLOCORIS ” HAHN, 1834 (CLASS INSECTA, ORDER HEMIPTERA), IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Bellocoris Hahn, 1834 (Class Insecta, Order Hemiptera), made prior to the present Ruling are hereby set aside and Cimex austriacus Schrank, 1776, is hereby designated as the type species of this genus. (2) The generic name Bellocoris Hahn, 1834 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 674. (3) The specific name austriacus Schrank, 1776, as published in the combination Cimex austriacus, is hereby placed on the Official List of Specific Names in Zoology as Name No. 67. IL—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee. This Report rs The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of ; Dr, W. E. China; Mr. E. E. Green. we 106 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annexe II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The second of the names in question was Bellocoris Hahn, 1834, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Bellocoris ’’ Hahn, 1834 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Bellocoris Hahn, 1834 Original reference :—Hahn, 1834, Wanzen. Ins. 2 : 42 Author by whom the type in question was designated and reference:— Westwood, 1840, Introd. Mod. Class Ins. 2 (Syn. Gen. Brit. Ins.) : 124. Name of species so designated as type :—Cimex maurus Linnaeus, 8. Species intended by the original author of the genus when employing the specific name in question :—Cimex maurus (Linnaeus) Hahn, 1834, nec Linnaeus, 1758, i.e., the species the valid name for which is Cimex austriacus Schrank, 1776, Beitr. z. Naturges. Leipzig : 78. Discussion of the case :—Hahn established the genus Bellocoris for three species, Cimex purpureolineatus Rossi, 1790, Tetyra maura Fabricius, 1803 (Cimex maurus Linnaeus, 1758) and Tetyra picta | OPINION 248 107 Fabricius, 1803. The first designation of type in correct form is by Westwood, 1840, who cited Cimex maurus Linnaeus. Kirkaldy, however, rightly contends that, as in the case of Tetyra Fabricius, 1803, Cimex maurus Linnaeus was wrongly identified by Hahn, since Hahn’s description disagrees with C. maurus Linnaeus in the size—54 lines— (even females of C. maurus L. do not exceed 44 lines), and in the presence of a distinct longitudinal keel on the scutellum (‘‘in der Mitte desselben ein erhdhter Langskiel’’). Hahn’s species is in fact Cimex austriacus Schrank, 1776. In effect, therefore, Cimex maurus Linnaeus, 1758, was not one of the species originally included in Bellocoris, and Westwood’s designation was consequently invalid, being based on a misidentification of Tetyra maura Fabricius, 1803, with Cimex maurus Linnaeus, 1758. If, however, it were necessary under the Code to assume that Hahn’s determination was correct, Westwood’s designation of Cimex maurus Linnaeus as the genotype of Bellocoris would be validated. In this case no great nomenclatorial confusion would be caused since Bellocoris Hahn, 1834, would merely become a synonym of Eurygaster Laporte, 1832, instead of a synonym of Odontotarsus Laporte, 1832. Such a course, however, would involve the fixing as genotype of Bellocoris Hahn of a species not originally included in that genus, a principle which, if invalidated in the case of Tetyra Fabricius, can scarcely be accepted here. It is for this reason that I have disregarded Westwood’s selection of C. maurus Linnaeus as the type of Bellocoris, placed that species in the genus Eurygaster Laporte, 1832, with the type of which (Cimex hottenttotus Fabricius, 1775) it is congeneric, and have consequently refrained from placing Bellocoris Hahn, 1834, as a synonym of Eurygaster Laporte, 1832. Reuter (1888, Act. Soc. Sci. Fenn. 15 : 758) again designated Cimex maurus Linnaeus, 1758, as the type of Bellocoris (Hahn) Westwood. This too has been rejected on the same above-mentioned grounds and the first valid fixation by Kirkaldy of Cimex purpureolineatus Rossi, 1790, accepted. Thereby Bellocoris Hahn, 1834, becomes a synonym of Odontotarsus Laporte, 1832. Action by the International Commission desired :—A declaration that the action of Westwood (1840) in designating Cimex maurus Linnaeus, 1758, as the type of Bel/ocoris Hahn, 1834, is invalid, since that species was not included in the genus by Hahn, the species cited under that name being Cimex austriacus Schrank, 1776, Beitr. z. Naturges. Leipzig : 78 (= C. nigrocucullatus Goeze, 1778, Ent. Beytr. 2 : 235) and that the type of the genus Bellocoris Hahn is the next species to be designated as such by an author complying with the provisions of Article 30 of the International Code; and that, in consequence, the type of that genus is Cimex purpureolineatus Rossi, 1790 (Faun. Etr. 2 : 228) which is one of the species originally included in the genus by Hahn, and was designated as the type by Kirkaldy in 1909, Cat. Hemipt. 1 : 270. 108 OPINIONS AND DECLARATIONS Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 278—279). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. IIl— THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in © 1948 the International Commission on Zoological Nomenclature | OPINION 248 109 submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon 110 OPINIONS AND DECLARATIONS misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— Ce 2 (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s File Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that OPINION 248 111 such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (1) (2) Bellocoris Hahn, Cimex austriacus 1834 Schrank, 1776 Ce | (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard 112 OPINIONS AND DECLARATIONS to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4: 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (1) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— austriacus, Cimex, Schrank, 1776, Beitr. z. Naturges. Leipzig : 78 Bellocoris Hahn, 1834, Wanzen. Ins. 2 : 42 9. The gender of the generic name Bellocoris Hahn, 1834, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The foregoing decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners a OPINION 248 113 present at the Paris Session of the International Commission, namely :— | Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko6 ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. — 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 114 OPINIONS AND DECLARATIONS 15. The present Opinion shall be known as Opinion Two Hundred and Forty-Eight (248) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by MercatFe & Cooper Limitep, 10-24 Scrutton St., London E C 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c..G., C.B.E. Secretary to the Commission VOLUME 5. Part 10. Pp. 115—126 OPINION 249 Designation, under the Plenary Powers, of a type species for the nominal genus Beosus Amyot & Serville, 1843 (Class Insecta, Order Hemiptera), in harmony with accustomed nomenclatorial usage ANY HSON/4 W JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 249 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History). Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyYMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Baek E. VoKEs (United States Geological Survey, Washington, D.C., S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CaLMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEwskKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold KirsBy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark).: Professor Kamel MANSouR (King Fouad University, Cairo, Egypt). Professor Z. P. MeTCcALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEY (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). ee eee L. UsINGerR (University of California, Berkeley, California, OPINION 249 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS **BEOSUS ’”’’? AMYOT & SERVILLE, 1843 (CLASS INSECTA, ORDER HEMIPTERA), IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Beosus Amyot & Serville, 1843 (Class Insecta, Order Hemiptera), made prior to the present Ruling, are hereby set aside and Cimex maritimus Scopoli, 1763, is hereby designated as the type species of this genus. (2) The generic name Beosus Amyot & Serville, 1843 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 675. (3) The specific name maritimus Scopoli, 1763, as published in the combination Cimex maritimus, is hereby placed on the Official List of Specific Names in Zoology as Name No. 68. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of; Dr, W, E. China; Mr. E. E, Green. tw 118 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annexe II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The third of the names in question was Beosus Amyot & Serville, 1843, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Beosus ’’ Amyot & Serville, 1843 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Beosus Amyot & Serville, 1843 Original reference :—Amyot and Serville, 1843 (Roret’s Suite 4 Buffon), Hist. nat. Ins. Hémipt. : 254 Author by whom type in question was designated and reference :— The genus is monobasic. Monobasic type is Lygaeus quadratus Fabricius, 1803. Species intended by the original author of the genus when employing the specific name in question :—Lygaeus quadratus (Fabricius) Amyot & Serville, 1843, nec Fabricius, 1803, 7.e., the species the valid name for which is Cimex maritimus Scopoli, 1763, Ent. Carn. : 129. Discussion of the case :—Amyot and Serville based their genus Beosus on a single species which they assumed to be Lygaeus quadratus Fabricius, 1803. Fabricius’s species, however, was wrongly identified by them. They gave the length of the species as 7 mm., whereas OPINION 249 119 Lygaeus quadratus Fabricius does not exceed 5mm. They also stated “legs pale, the extremity of the femora black’, whereas in Lygaeus quadratus Fabricius the femora are black with the extreme apices pale. In their generic synopsis of Beosus they stated “‘ anterior lateral angles of pronotum not extending beyond the line of the eyes (anterior margin of pronotum) on each side”, a character possessed by Cimex maritimus Scopoli and not by Lygaeus quadratus Fabricius, 1803. It has been generally agreed by Hemipterists that the species Amyot and Serville had before them was Cimex maritimus Scopoli, 1763 (= Lygaeus luscus Fabricius, 1794), which should therefore be the type of Beosus Amyot & Serville, 1843. If it were necessary under the Code to assume that Amyot and Serville’s determination of Lygaeus quadratus Fabricius was correct, Beosus auct. would be without a name and Xanthochilus Stal, 1872, would become a synonym of Beosus Amyot & Serville, 1843. Such action would run directly counter to Amyot and Serville’s intentions and would be open to the strongest objection in that it would involve the acceptance as type of this genus of a species agreeing neither with the original generic description nor with Amyot and Ser- ville’s description of the sole species of the genus. It is for this reason that I have accepted Cimex maritimus Scopoli, 1763, as the type of Beosus Amyot & Serville, 1843. Action by the International Commission desired :—A declaration that the type of Beosus Amyot & Serville, 1843, is Cimex maritimus Scopoli, 1763, Ent. Carn. : 129, and not Lygaeus quadratus Fabricius, 1803, Syst. Rhyng. : 232, the single species described in the genus by Amyot and Serville, since the latter species does not agree with the generic description nor with the description of the type species given by Amyot and Serville, which was clearly misidentified as Lygaeus quadratus Fabricius. Il—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 279—280). . 120 OPINIONS AND DECLARATIONS 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. III.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Rég/es of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic —— OPINION 249 121 name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, 122 OPINIONS AND DECLARATIONS before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— ecco ee eco ee ee ee ee ee ee we (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s File Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (2) (1) Beosus Amyot & Cimex maritimus Scopoli, Serville, 1843 1763 eeceoee eee ee ee we ee lhmUmUmmUlUl Cl OCC HC OC HC OHM OC he he eee — OPINION 249 123 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission :— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 124 OPINIONS AND DECLARATIONS 8. The following are the original references for the names ‘which appear in the decision set out in paragraph 6 above :— Beosus Amyot & Serville, 1843, (Roret’s Suite 4 Buffon), Hist. nat. Ins. Hémipt. : 254 maritimus, Cimex, Scopoli, 1763, Ent. carn. : 129 9. The gender of the generic name Beosus Amyot & Serville, 1843, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the OPINION 249 125 Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Forty-Nine (249) of the International Commission on Zoological Nomenclature. DOonE in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 11. Pp. 127—138 OPINION 250 Designation, under the Plenary Powers, of a type species for the nominal genus Catoplatus Spinola, 1837 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage ANY HSON/g JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued \\th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 250 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 ‘Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MoRTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). _ Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 ‘Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. Voxes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). ‘C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). ‘Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSouR (King Fouad University, Cairo, Egypt). ‘Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILeEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Bhs cnice ence L. Ustncer (University of California, Berkeley, California, OPINION 250 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS **CATOPLATUS ” SPINOLA, 1837 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Catoplatus Spinola, 1837 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Tingis fabricii Stal, 1868, is hereby designated as the type species of this genus. (2) The generic name Catoplatus Spinola, 1837 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 676. (3) The specific name fabricii Stal, 1868, as published in the combination Tingis fabricii, is hereby placed on the Official List of Specific Names in Zoology as Name No. 69. I—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report a The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr. W, E, China; Mr, E, E. Green. wr 130 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annexe II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The sixth of the names in question was Catoplatus Spinola, 1837, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles’’ for ‘‘ Catoplatus ’’ Spinola, 1837 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Catoplatus Spinola, 1837 Original reference :—Spinola, 1837, Essai Ins. Hémipt. : 167 Author by whom the type in question was designated and reference:— The genus is monobasic. Name of species so designated as type :—The monobasic type is Acanthia costata Fabricius, 1794. Species intended by the original author of the genus when employing the specific name in question :—Acanthia costata (Fabricius) Spinola, 1837, nec Fabricius, 1794, i.e., the species the valid name for which is Tingis fabricii Stal, 1868, Hémipt. Fabric. 1 (K. Svensk. Vet.-Ak. Handi. 4 (11)) : 93. Discussion of the case :—Spinola based his genus on a single species Acanthia costata Fabricius, 1794. Unfortunately he misidentified OPINION 250 131 this species. Stal, 1868, Hémipt. Fabric. 1 : 93, who examined the Fabrician type, showed that Spinola’s species was distinct from that of Fabricius and consequently renamed it Tingis fabricii. The type of Catoplatus Spinola therefore is not the wrongly identified Acanthia costata Fabricius, 1794, but Tingis fabricii Stal, 1868. The identity of the true Acanthia costata Fabricius is in doubt. Fabricius recorded it from northern Europe. Stal, 1873, Enum. Hémipt. 3 : 129, refers it to Laporte’s genus Eurycera, but states “ Patria ignota’’. Horvath, 1906, Ann. Mus. nat. Hung. 4 : 94, is of the opinion that this is an exotic African species of the genus Copium Thunberg, 1822, of which genus Eurycera Laporte, 1832, is a synonym. If therefore it were necessary under the Code to assume that Spinola’s determination of Acanthia costata Fabricius, 1794, was correct, Catoplatus Spinola, 1837, would become a synonym of Copium Thunberg, 1822, and the well-known European genus Catoplatus auct. nec. Spinola would be left without a name. Such action would not only cause great confusion in the nomenclature of the genus Catoplatus but would run directly counter to Spinola’s intentions and would involve the designation as type of Catoplatus of a species disagreeing with the generic description. It is for this reason that I have accepted Tingis fabricii Stal, 1868, as the type of Catoplatus Spinola, 1837. Action by the International Commission desired :—A declaration that the type of Catoplatus Spinola, 1837, is Tingis fabricii Stal, 1868, Hémipt. Fabric. 1 (K, Svensk. Vet.-Ak. Handl. 4 (11)) : 93, and not Acanthia costata Fabricius, 1794, Ent. syst. 4: 77, the single species included in the genus by Spinola, since the Fabrician species agrees neither with Spinola’s generic description nor with the description of the type species given by Spinola, which was clearly misidentified as Acanthia costata Fabricius. Il—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 3lst March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 281). 132 OPINIONS AND DECLARATIONS 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice. of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. II.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Rég/es of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic OPINION 250 133 name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had’ been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable 134 OPINIONS AND DECLARATIONS to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s File Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (2) Catoplatus Spinola, Tingis fabricii Stal, 1837 1868 eececscecevcereveeeevre eee i o-=eeeefeeteeteerereeeveeeee OPINION 250 135 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) 136 OPINIONS AND DECLARATIONS has registered his support for each of the proposals specifiedwabove, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— Catoplatus Spinola, 1837, Essai Ins. Hémipt. : 167 fabricii, Tingis, Stal, 1868, K. svensk. Vet.-Ak. Handl., Stockholm 7 (No. 11) : 93 (Hemipt. Fab. : 93) 9. The gender of the generic name Catoplatus Spinola, 1837, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The foregoing decision was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species OPINION 250 N37 was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Fifty (250) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING al } m Printed in England by Metcatre & Coorer LimiTED, 10-24 Scrutton St., OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c™.G., C.B.E. Secretary to the Commission VOLUME 5. Part 12. Pp. 139—150 OPINION 251 Designation, under the Plenary Powers, of a type species for the nominal genus Dictyonota Curtis, 1827 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage AN) HSON/4 Wy JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 251 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission).. Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). ; Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PrETers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. aa E. Voxes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEwsKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. SToLt (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning Lemcue (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsourR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RiLey (British Museum (Natural History), London, England). Professor Ragnar SpArck (Universitetets Zoologiske Museum, Copenhagen, Denmark). : Professor Victor yan STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Role aaa L. UsINGER (University of California, Berkeley, California, S.A.). OPINION 251 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ** DICTYONOTA ” CURTIS, 1827 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Dictyonota Curtis, 1827 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Dictyonota strichnocera Fieber, 1844, is hereby designated as the type species of this genus. (2) The generic name Dictyonota Curtis, 1827 (gender of name: feminine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 677. (3) The specific name strichnocera Fieber, 144, as published in the combination Dictyonota strichnocera, is hereby placed on the Official Ei of Specific Names in Zoology as Name No. 70. I—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report _ The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of ; Dr, W, E, China; Mr. E. E. Green. i) 142 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annexe II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name was applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The fifth of the names in question was Dictyonota Curtis, 1827, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Dictyonota ’’ Curtis, 1827 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Dictyonota Curtis, 1827 Original reference :—Curtis, 1827, Brit. Ent. : 154 Author by whom the type in question was designated and reference :— Curtis, 1827, Brit. Ent. 4 (154) : pl. 154. Name of species sO designated as type :+—Tingis eryngii Latreille, 1804. Species intended by the original author of the genus when employing the specific name in question :—Tingis eryngii (Latreille) Curtis, 1827, nec Latreille, 1804, 7.e., the species the valid name for which 1s Dictyonota strichnocera Fieber, 1844, Ent. Monogr. : 95. Discussion of the case :—Curtis founded his genus Dictyonota for two British species, Tingis crassicornis Fallen, 1818, Mon. Cim. Suec. : 38 and Tingis eryngii Latreille, [1804], Hist. Nat. Crust. Ins. 12 : 253. OPINION 251 143 Of these he designated Tingis eryngii Latreille as the type of the genus. Unfortunately Curtis, as is clear from his description and excellent figure, misidentified Latreille’s species (which does not occur in Britain) and the British species he actually described under Latreille’s name has since been redescribed and named Dictyonota strichnocera by Fieber, 1844. The true Tingis eryngii Latreille, [1804] is actually a synonym of Cimex carthusianus Goeze, 1778, Ent. Beytr. 2 : 268, and belongs to the genus Catoplatus Spinola, 1837, Essai Ins. Hemipt. : 167. This synonymy has been generally accepted by Hemipterists for many years. Dictyonota strichnocera Fieber must therefore be accepted as the type of Dictyonota. If it were necessary under the Code to assume that Curtis’s determination of Tingis eryngii Latreille was correct, the well-known genus Catoplatus Spinola, 1837, would be- come a synonym of Dictyonota Curtis, 1827, and the equally well-known genus Dictyonota auct. would take the name Scraulia Stal, 1874. Such action would run directly counter to Curtis’s intentions and would be open to the strongest objection in that it would involve the acceptance as type of this genus of a species agreeing neither with the original generic description nor with Curtis’s own description and figure of the type species. It is for this reason that I have accepted Dictyonota strichnocera Fieber, 1844, as the type of Dictyonota Curtis, 1827. Action by the International Commission desired :—A declaration that the type of Dictyonota Curtis, 1827, is Dictyonota strichnocera Fieber, 1844, Ent. Monogr. :95 and not Tingis eryngii Latreille, [1804], Hist. Nat. Crust. Ins. 12 : 253, since the latter species agrees neither with the generic description nor with the description and figure of the type species given by Curtis, which was clearly misidentified as Tingis eryngii Latreille. II.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 3lst March 1947 (China, 1947, Bull. zool. Nomencl. 12282). 144 OPINIONS AND DECLARATIONS 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name A/ydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** | should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices: On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. III—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species | of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic OPINION 251 145 name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable 146 OPINIONS AND DECLARATIONS to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any such adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s File Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (2) Dictyonota Curtis, Dictyonota strichnocera 1827 Fieber, 1844 a OPINION 251 147 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, 148 OPINIONS AND DECLARATIONS and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— Dictyonota Curtis, 1827, Brit. Ent. 4 (154) : pl. 154 strichnocera, Dictyonota, Fieber, 1844, Ent. Monogr. : 95 9. The gender of the generic name Dictyonota Curtis, 1827, referred to in the decision quoted in paragraph 6 above, is feminine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 114). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner —— at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and OPINION 251 149 invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Fifty-One (251) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.c., C.B.E. Secretary to the Commission VOLUME 5. Part 13. Pp. 151—162 OPINION 252 Designation, under the Plenary Powers, of a type species for the nominal genus Oncotylus Fieber, 1858 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage °—+n eM HSON/47 JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust’ for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 252 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JORDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. oe E. VoKes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirspy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsourR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UsiNGer (University of California, Berkeley, California, U.S.A.). OPINION 252 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ** ONCOTYLUS ”’ FIEBER, 1858 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Oncotylus Fieber, 1858 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Oncotylus punctipes Reuter, 1873, is hereby designated as the type species of this genus. (2) The generic name Oncotylus Fieber, 1858 (gender of name: masculine) with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 678. (3) The specific name punctipes Reuter, 1873, as published in the combination Oncotylus punctipes, is hereby placed on the Official List of Specific Names in Zoology as Name No. 71. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society's Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report ~ The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr, W, E, China; Mr, E, E, Green, 154 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annex II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The ninth of the names in question was Oncotylus Fieber, 1858, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Oncotylus ”’ Fieber, 1858 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Oncotylus Fieber, 1858 Original reference :—Fieber, 1858, Wien. ent. Monatschr. 2 : 318. Author by whom the type in question was designated and reference:— Kirkaldy, 1906, Trans. amer. ent. Soc. 32 : 126. Name of species so designated as type :—Capsus tanaceti Fieber, 1858, i.e., Capsus tanaceti (Fallén) Fieber, 1858, nec Fallén, 1807. Species intended by the original author of the genus when employing the specific name in question :—Capsus tanaceti Herrich-Schaeffer, 1836, nec Capsus tanaceti Fallén, 1807, i.e., the species the valid name of which is Oncotylus punctipes Reuter, 1873, Bihang. K. Svensk. Vet.-Ak. Hand. 3 (i) : 42. Discussion of case :—Fieber based his genus Oncotylus on Capsus decolor Fallén, 1807, Capsus tanaceti Fallén, 1807, and Oncotylus OPINION 252 155 fenestratus Fieber, 1858. Kirkaldy, 1906, fixed Oncotylus tanaceti Fieber, 1858, as the type, indicating that this species was not Capsus tanaceti Fallén, 1807, the species actually referred to by Fieber, but Oncotylus punctipes Reuter, 1873, as had been shown by Reuter, 1873, Bihang K. Svensk. Vet.-Akad. Hand. 3 (1) : 42 and 1879, Act. Soc. Sci. Fenn. 13 (2) : 279. Fieber apparently followed Herrich-Schaeffer, 1836, Wanz. Ins. 3 : 85 and Kirschbaum, 1855, Rhyn. Wiesbaden 1 : (Jahrb. Ver. Naturk. Herz. Nassau 10 :) 80, no. 120, in his identification of Capsus tanaceti Fallén, 1807, but, as shown by Reuter, the species which they wrongly identified as such was a distinct species later described by Reuter as Oncotylus punctipes, which therefore becomes the type of Oncotylus Fieber. If it were necessary under the Code to assume that Fieber’s determination of Capsus tanaceti Fallén was correct, then Oncotylus Fieber, 1858, would replace Megalocoleus Reuter, 1890, which is a new name for Macrocoleus Fieber, 1858, nec Desvignes, 1849 (Hymenoptera) and Oncotylus auct. would be- come Anoterops Fieber, 1858. Such action would not only cause confusion in the nomenclature of these genera, but would also run directly counter to Fieber’s intention, which was to separate his genera Oncotylus and Macrocoleus (i.e., Megalocoleus Reuter n.n.) described within a few pages of one another in the same work. It would also be open to the strongest objection in that it would involve the designa- tion as type of Oncotylus of a species disagreeing with the generic description. It is for this reason that I have accepted Oncotylus punctipes Reuter instead of Capsus tanaceti Fallén as type of Oncotylus. Action by the International Commission desired :—A declaration that the type of Oncotylus Fieber, 1858, is Oncotylus punctipes Reuter, 1873, Bihang K Svensk. Vet.-Akad. Handl. 3 (1) : 42 and not Capsus (Phytocoris) tanaceti Fallén, 1807, Hem. Suec. Cimic. : 83, the species included in the genus by Fieber, since Fallén’s species agrees neither with Fieber’s generic description nor with the description of the type species given by Fieber, which was clearly misidentified as Capsus (Phytocoris) tanaceti Fallén. Il—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established 156 OPINIONS AND DECLARATIONS Bulletin of Zoological Nomenclature. ‘The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 3lst March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 284). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. III—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal OPINION 252 (57 genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the 158 OPINIONS AND DECLARATIONS Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any such adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s file Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that OPINION 252 159 such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (1) (2) Oncotylus Fieber, Oncotylus punctipes 1858 Reuter, 1873 Co cS i i i i (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to 160 OPINIONS AND DECLARATIONS the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4: 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— Oncotylus Fieber, 1858, Wien. ent. Monats. 2 : 318 punctipes, Oncotylus, Reuter, 1873, Bihang K. svensk. Vet.-Akad. Handl., Stockholm 3 (No. 1) : 42 9. The gender of the generic name Oncotylus Fieber, 1858, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 115). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners OPINION 252 16] present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The present Opinion was dissented from by no Com- missioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name’ was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 162 OPINIONS AND DECLARATIONS 15. The present Opinion shall be known as Opinion Two Hundred and Fifty-Two (252) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by Metcatre & Cooper LimiTEep, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 14. Pp. 163—174 OPINION 253 Designation, under the Plenary Powers, of a type species for the nominal genus Pachylops Fieber, 1858 (Class Insecta, Order Hemiptera) in harmony with accustomed | nomenclatorial usage vial, y> JUL 9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 253 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorRTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Agiaeic do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. ans E. VoKEs (United States Geological Survey, Washington, D.C., Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso Esaki (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos: Naturales Renovables A.C., Mexico City, Mexico). ; Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirgy (University of California, Berkeley, California, U.S.A.). _ Dr.. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). ~ Mr. N. D. Ritey (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Frofsct oe L. UsincER (University of California, Berkeley, California, .S.A.). OPINION 253 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ‘* PACHYLOPS ” FIEBER, 1858 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Pachylops Fieber, 1858 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Litosoma bicolor Douglas & Scott, 1868, is hereby designated as the type species of this genus. (2) The generic name Pachylops Fieber, 1858 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 679. (3) The specific name bicolor Douglas & Scott, 1868, as published in the combination Litosoma bicolor, is hereby placed on the Official List of Specific Names in Zoology as Name No. 72. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report i The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of : Dr. W. E, China; Mr, E, E, Green, w 166 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annex II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The eighth of the names in question was Pachylops Fieber, 1858, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Pachylops ”’ Fieber, 1858 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Pachylops Fieber, 1858 Original reference :—Fieber, 1858, Wien. ent. Monatsch. 2 : 314. Author by whom the type in question was designated and reference:— The genus is monobasic. Name of species so designated as type :—The monobasic type is Capsus chloropterus Kirschbaum, 1855. Species intended by the original author of the genus when employing the specific name in question :—Capsus chloropterus (Kirschbaum) Fieber, 1858, nec Kirschbaum, 1855, i.e., the species the valid name for which is Litosoma bicolor Douglas & Scott, 1868, Ent. mon. Mag. 4 : 267. Discussion of the case :—Fieber based his genus on a single species which he assumed to be Capsus chloropterus Kirschbaum, 1855, Rhyn. Wiesbaden 1 : (Jahr. Ver. Naturk. Herz. Nassau 10 : 249). Reuter, OPINION 253 167 1877 (Ent. mon. Mag. 14: 129), showed that Fieber misidentified Kirschbaum’s species (possibly because he received a wrongly identified specimen from Kirschbaum himself), and that the species Fieber (followed by Douglas and Scott, and Saunders) determined as Capsus chloropterus Kirschbaum is a distinct species which was later described by Douglas and Scott under the name Litosoma bicolor. The type of Pachylops is therefore Litosoma bicolor Douglas & Scott, 1868, and not the wrongly identified Capsus chloropterus Kirschbaum, 1855. If it is necessary under the Code to assume that Fieber’s determination of this species was correct, then Pachylops Fieber would replace the well-known Orthotylus Fieber, 1858, and Pachylops auct. nec Fieber would become Hypsitylus Fieber, [1860]. Such action would not only cause confusion in the nomenclature of these genera, but would run directly counter to Fieber’s intention, which was to separate distinctly his two new genera Pachylops and Orthotylus described on consecutive pages of the same work. It would also be open to the strongest objection in that it would involve the designation as type of Pachylops of a species disagreeing completely with the generic description. It is for these reasons that I have accepted Litosoma bicolor Douglas & Scott, 1868, instead of Capsus chloropterus Kirschbaum, 1855, as the type of Pachylops. Since Capsus chloropterus Kirschbaum, 1855, is a primary homonym of Capsus chloropterus Herrich-Schaeffer, 1853, the next available name, which is Litosoma virescens Douglas & Scott, 1865, must be used if Capsus chloropterus is accepted as type. Action by the International Commission desired :—A declaration that the type of Pachylops Fieber, 1858, is Litosoma bicolor Douglas & Scott, 1868, Ent. mon. Mag. 4 : 267 and not Capsus chloropterus Kirschbaum, 1855, Rhyn. Wiesbaden 1: (Jahrb. Ver. Naturk. Herz. Nassau 10 : 249), the single species included in the genus by Fieber, since the Kirschbaum species agrees neither with Fieber’s generic description nor with the description of the type species given by Fieber, which was clearly misidentified as Capsus chloropterus Kirschbaum. II—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties 168 OPINIONS AND DECLARATIONS arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. £52285): 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case - of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— “* T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. III.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this OPINION 253 169 provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion which took place, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the 170 OPINIONS AND DECLARATIONS Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind: had been received from any specialist in the groups concerned. If any adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s file Z.N.(S.) 144 showed that no objection to the action proposed had been received from any — source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that OPINION 253 I such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (1) (2) Pachylops Fieber, Litosoma bicolor Douglas 1858 & Scott, 1868 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to 172 OPINIONS AND DECLARATIONS London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (1) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— bicolor, Litosoma, Douglas & Scott, 1868, Ent. mon. Mag. 4 : 267 Pachylops Fieber, 1858, Wien. ent. Monats. 2 : 314. 9. The gender of the generic name Pachylops Fieber, 1858, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 115). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners OPINION 253 173 present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche. vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode: Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species. was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 174 OPINIONS AND DECLARATIONS 15. The present Opinion shall be known as Opinion Two Hundred and Fifty-Three (253) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING ee al Printed in England by Mrercatre & Cooper Limirep, 10-24 Scrutton St., London E C2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER. NATIONAL COMMISSION -ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.™.G., C.B.E. Secretary to the Commission VOLUME 5. Part 15. Pp. 175—186 OPINION 254 Designation, under the Plenary Powers, of a type species for the nominal genus Pilophorus Hahn, 1826 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage oN HSON/a JUL 9= 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Ussued Vth June, 1954 y INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 254 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology Cambridge, Massachusetis, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. Voxes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHmMa (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LeMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Ribey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). protesee Robert L. UsinGer (University of California, Berkeley, California, .5.A.). OPINION 254 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ‘* PILOPHORUS ”? HAHN, 1826 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Pilophorus Hahn, 1826 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Cimex clavatus Linnaeus, 1767, is hereby designated as the type species of this genus. (2) The generic name Pilophorus Hahn, 1826 (gender of name: masculine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 680. (3) The specific name clavatus Linnaeus, 1767, as published in the combination Cimex clavatus, is hereby placed on the Official List of Specific Names in Zoology as Name No. 73. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2_ This Report f= The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr. W. E. China; Mr. E. E. Green. is) 178 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annex II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The seventh of the names in question was Pilophorus Hahn, 1826, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Philophorus ’’ Hahn, 1826 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Pilophorus Hahn, 1826 Original reference :—Hahn, 1826, Icon. Cimic. 1 : 22 Author by whom the type in question was designated and reference:— The genus is monobasic. Name of species so designated as type :—The monobasic type is Cimex bifasciatus Fabricius, 1775. Species intended by the original author of the genus when employing the specific name in question :—Cimex bifasciatus (Fabricius) Hahn, 1826, nec Fabricius, 1775, i.e., the species the valid name for which is Cimex clavatus Linnaeus, 1767. Discussion of the case :—Hahn based his genus on a single species which he assumed to be Cimex bifasciatus Fabricius. His figure clearly shows that he had before him Cimex clavatus Linnaeus, 1767, Syst. OPINION 254 179 Nat. (ed. 12) 1 (2) : 729. It has been generally agreed by hemipterists that the type of Pilophorus is therefore Cimex clavatus Linnaeus and not Cimex bifasciatus Fabricius. However, even if it were necessary under the Code to assume that Hahn’s determination of Cimex bifasciatus Fabricius was correct, no change in the nomenclature of the genus would be necessary since Cimex bifasciatus Fabricius, 1775, also belongs to the genus Pilophorus, although since it is a primary homonym of Cimex bifasciatus Miiller, 1764, Faun. Ins. Fridrichsdal. : 29, it must take the next available name, which is Capsus cinnamop- terus Kirschbaum, 1855, Rhyn. Wiesbaden (Jahrb. Ver. Naturk. Herz. Nassau 10 : 232). At first sight it seems unnecessary for the Commission to make a declaration in this case, but for the sake of the principle involved, it is probably better to ask for such a declaration. In any case it is not impossible that at some future date the genus Pilophorus might be split up into two or more genera, in which case it is essential that the type of the original genus should be correctly fixed. Action by the Commission desired :—A declaration that the type of Pilophorus Hahn, 1826, is Cimex clavatus Linnaeus, 1767, Syst. Nat. (ed. 12) 1 (2) : 729, and not Cimex bifasciatus Fabricius, 1775, Syst. Ent. : 725, the sole species included in the genus by Hahn, since the latter species does not agree with Hahn’s figure and was clearly misidentified by Hahn, whereas the figure agrees well with Cimex clavatus Linnaeus, 1767. Il—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 286). . 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) 180 OPINIONS AND DECLARATIONS wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ** T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. II—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Rég/es of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, — however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing OPINION 254 181. (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion which took place, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any 182 OPINIONS AND DECLARATIONS specialist in the groups concerned. If any such adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) (1950, Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s file Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) (1) (2) Ce eC Pilophorus Hahn, Cimex clavatus 1826 Linnaeus, 1767 Ce OPINION 254 183 (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) 184 OPINIONS AND DECLARATIONS has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— clavatus, Cimex, Linnaeus, 1767, Syst. Nat. (ed. 12) 1 (2) : 729 Pilophorus Hahn, 1826, Icon. Cimic. 1 : 22. 9. The gender of the generic name Pilophorus Hahn, 1826, referred to in the decision quoted in paragraph 6 above, is masculine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 115). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific OPINION 254 185 Trivial Names in Zoology, the word “ trivial” appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 15. The present Opinion shall be known as Opinion Two Hundred and Fifty-Four (254) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, CM.G., C.B.E. Secretary to the Commission VOLUME 5. Part 16. Pp. 187—198 OPINION 255 Designation, under the Plenary Powers, of a type species for the nominal genus Tetyra Fabricius, 1803 (Class Insecta, Order Hemiptera) in harmony with accustomed nomenclatorial usage ENN HSON/a JUL.9- 1954 LIBRARY LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 11th June, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 255 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JorRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPoRIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. VoKes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. SToLt (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Tee aera L. UsiINGER (University of California, Berkeley, California, (U.S.A). OPINION 255 DESIGNATION, UNDER THE PLENARY POWERS, OF A TYPE SPECIES FOR THE NOMINAL GENUS ‘* TETYRA ” FABRICIUS, 1803 (CLASS INSECTA, ORDER HEMIPTERA) IN HARMONY WITH ACCUSTOMED NOMENCLATORIAL USAGE RULING :—(1) Under the Plenary Powers all type- selections for the nominal genus Jetyra Fabricius, 1803 (Class Insecta, Order Hemiptera) made prior to the present Ruling are hereby set aside and Cimex antillarum Kirkaldy, 1909, is hereby designated as the type species of this genus. (2) The generic name Tetyra Fabricius, 1803 (gender of name: feminine), with the type species designated in (1) above, is hereby placed on the Official List of Generic Names in Zoology as Name No. 681. (3) The specific name antillarum Kirkaldy, 1909, as published in the combination Cimex antillarum, is hereby placed on the Official List of Specific Names in Zoology as Name No. 74. I.—THE STATEMENT OF THE CASE On 30th June 1943 the Royal Entomological Society of London published Part 8 of the work entitled The Generic Names of British Insects. This Part contained the Eighth Report of the Society’s Committee on Generic Nomenclature! covering the First Report of its Hemiptera Sub-Committee.2 This Report i The composition of the Committee on Generic Nomenclature at the time of the submission of this Report was the same as it had been at the completion of its Sixth Report. Its composition at the latter date has been given in footnote 1 to Opinion 243 (: 48). The Hemiptera Sub-Committee at the time of the submission of this Report was composed of: Dr. W. E. China; Mr, E. E. Green. rn 190 OPINIONS AND DECLARATIONS dealt exclusively with the generic names of the British Hemiptera- Heteroptera. Annexed to the Sub-Committee’s Report as Annex II was a paper by Dr. W. E. China (British Museum (Natural History), London), one of the members of the Sub- Committee, giving particulars of ten nominal genera, each based upon a misidentified type species, and asking that in each case the International Commission on Zoological Nomenclature should use its Plenary Powers in such a way as to secure that the type species should be not the species to which the cited name is applicable but the species intended by the author of the generic name when he cited the name of the nominal species concerned. The first of the names in question was Tetyra Fabricius, 1803, with which the present Opinion is concerned. The recommendations in regard to this and the nine other cases referred to above prepared by Dr. China and endorsed by the Committee on Generic Nomenclature were formally submitted to the International Commission by Mr. N. D. Riley, Secretary to the Royal Entomological Society of London, on 23rd August 1943. The application relating to the present case was as follows :— Proposed suspension of the ‘‘ Régles ’’ for ‘‘ Tetyra ’’ Fabricius, 1803 (Class Insecta, Order Hemiptera), a genus based upon an erroneously determined species By W. E. CHINA, M.A. (Assistant Keeper in the Department of Entomology, British Museum (Natural History)) Tetyra Fabricius, 1803 Original reference :—Fabricius, 1803, Syst. Rhyng. : 128 Author by whom the type in question was designated and reference:— Curtis, 1838, Brit. Ent. 15 (685): pl. 685. Name of species so designated as type :—Cimex maurus Linnaeus, 58. Species intended by the original author of the genus when employing the specific name in question :—Cimex maurus (Linnaeus) Fabricius, 1803, nec Linnaeus, 1758, i.e., the species the valid name for which is Cimex austriacus Schrank, 1776, Beitr. z. Naturges. Leipzig : 78. Discussion of the case :—Fabricius established his genus Tetyra to hold 79 species. Reuter, Kirkaldy, Van Duzee and other well- known hemipterists maintained that Fabricius himself fixed the type OPINION 255 191 of his genera by repetition of the generic characters immediately after the description of the type species. In the case of Tetrya these workers for this reason accepted the American Cimex arcuatus Fabricius, 1794 (Ent. Syst. 4:83, 12) as the genotype of Tetyra, thereby making Jetyra an American genus. This method of type fixation, however, has been rejected by the International Commission under Article 30 (g), in Opinion 81, since the 1803 Fabrician type fixation for Cimex Linnaeus, viz., C. bidens, is not accepted in section F of the above Opinion.* The first citation in valid form is that by Curtis, 1838, who designated Cimex maurus Linnaeus, a well-known British and European species. Reuter (1888, Act. Soc. Sci. Fenn. 15 : 451) has demonstrated that the Cimex maurus included in Tetyra by Fabricius, 1803, is not the Cimex maurus of Linnaeus, 1758, and was wrongly identified as such by Fabricius, since Linnaeus wrote “‘ Habitat in Mauritania, in Svecia paullo minor’? whereas Fabricius stated “‘ Habitat in Oriente, apud nos quadruplo minor’. In effect Cimex maurus Linnaeus, 1758, was not one of the species originally included in Tetyra and Curtis’s designation is consequently invalid. If, however, it were necessary under the Code to assume that Fabricius’s determination of this species was correct, Curtis’s designa- tion of Cimex maurus Linnaeus as the genotype of Tetya would be validated and would involve the use of a new name for the American genus and the extension of Tetyra to the European list in place of the well-used name Eurygaster Laporte, 1832, a name of some importance in economic entomology as including pests of wheat. Such action would also run directly counter to Fabricius’s intentions in view of his afore-mentioned method of type indication, and would be open to the strongest objection in that it would involve the designation as the type of this genus of a species not included in it by Fabricius, the original author of the name. Action by the International Commission desired :—A declaration that the action of Curtis (1838) in designating Cimex maurus Linnaeus, 1758, as the type of Tetyra Fabricius, 1803, is invalid, since that species was not included by Fabricius in the genus, the species which he there cited under that name being Cimex austriacus Schrank, 1776, Beitr. z. Naturges, Leipzig : 78, and that the type of the genus Tetya Fabricius is the next species to be designated as such by an author complying with the provisions of Article 30 of the International Code ; and that in consequence the type of that genus is Cimex arcuata Fabricius, 1794, Ent. Syst. 4 : 83 nec Cimex arcuatus Gmelin, 1789 (=Cimex antillarum Kirkaldy, 1909, nom. n.) which is one of the species originally included in the genus by Fabricius and was designated as the type by Kirkaldy, 1900, in Entomologist 33 : 263. 3 See 1924, Smithson. misc. Coll. 73 (2) : 28 192 OPINIONS AND DECLARATIONS Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt, all ten of the applications discussed in the preceding paragraph were registered together under the Number Z.N.(S.) 144. As soon as possible thereafter, these applications were prepared for publication in the then newly established Bulletin of Zoological Nomenclature. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 31st March 1947 (China, 1947, Bull. zool. Nomencl. 1 : 287—288). 3. After the present application had been sent to the printer for publication in the Bulletin but long before it was published, Dr. R. I. Sailor (United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Washington, D.C., U.S.A.) wrote a letter on 12th January 1945, commenting upon the proposals submitted by the Committee on Generic Nomenclature when transmitting the First Report of its Hemiptera Sub-Com- mittee to the Council of the Royal Entomological Society of London. After criticising the application submitted in the case of the name Alydus Fabricius, Dr. Sailor intimated as follows his support for the proposal dealt with in the present Opinion :— ‘* T should like to add that, in my opinion, all other cases presented in Part 8 of The Generic Names of British Insects merit favorable action by the Commission ”’. 4. Issue of Public Notices : On 29th September 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publica- tion of these notices elicited no objection to the action proposed. Ii1—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. At an early stage of its work during its Paris Session in 1948 the International Commission on Zoological Nomenclature OPINION 255 193 submitted to the Thirteenth International Congress of Zoology a recommendation for the insertion in the Régles of a compre- hensive provision dealing with the problem presented by nominal genera based upon misidentified type species. The gist of this provision was that, where it could be shown that an error of identification of this kind had occurred, it should be the duty of the International Commission, on the facts being laid before it by specialists, to use its Plenary Powers to vary the type species of the genus concerned in such a way as to harmonise with current nomenclatorial usage, the Commission being left free, however, to withhold action under its Plenary Powers in any case where the nominal species cited by the author of a generic name and not the species to which he had intended to refer had become generally accepted by workers in the group concerned and where, in consequence, the correction of the original author’s error would be likely to lead to confusion and name-changing (Paris Session, 6th Meeting, Conclusion 38) (1950, Bull. zool. Nomencl. 4 : 158—159). It was in the light of the foregoing provision that the present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphitheatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, summarising the introductory statement made by the Acting President (Mr. Francis Hemming) and the ensuing discussion which took place, other than that portion which relates to the application submitted in regard to the name Gastrodes Westwood, 1840, which has been quoted in Opinion 246 (the Opinion dealing with that name) (1950, Bull. zool. Nomencl. 4 : 472) :— THE ACTING PRESIDENT (MR. FRANCIS HEMMING) said that unfortunately through some oversight the Commission File (file Z.N.(S.) 144) dealing with the present series of applica- tions had not been included among those which he had brought with him to Paris to assist the Commission in the consideration of problems calling for decision. So far as he could recall, no objections to the action proposed in these cases had been received from any source. These cases appeared to be exactly of the kind envisaged in Opinion 168. They all related to genera based upon 194 OPINIONS AND DECLARATIONS misidentified species, where the acceptance of the type species actually cited (as contrasted with that intended) by the original author would certainly cause great confusion. In such cases the Commission were now under an obligation to use their Plenary Powers to avoid disturbance in accepted nomenclature. IN THE ENSUING DISCUSSION the view was generally expressed that all the necessary data had been submitted by Dr. China in support of the remaining applications and that those applications were well founded. It was felt, however, that, before a final decision was taken on these cases, it was desirable to make sure, by reference to the Commission’s File, that no adverse comment of any kind had been received from any specialist in the groups concerned. If any adverse comments were found to have been received, the application concerned should be submitted to the Commission, but if no such adverse comments had been received, the Secretary to the Commission should prepare Opinions in the sense proposed. 6. The decision taken by the International Commission in the present case is set out as follows in the Official Record of its Proceedings (Paris Session, 14th Meeting, Conclusion 21) Sie Bull. zool. Nomencl. 4 : 469—474) :— THE COMMISSION agreed :— (5) as regards the names of the nine genera in the Order Hemiptera (Class Insecta) specified below :— (a) that, if an examination of the Commission’s File Z.N.(S.) 144 showed that no objection to the action proposed had been received from any source, the Plenary Powers should be used to designate as the type species of the genera L OPINION 255 195 concerned the species severally specified below, but that, if in any case it were to be found that such an objection had been received, the applica- tion concerned should be resubmitted to the Commission for further consideration :— Name of species pro- posed to be designated under the Plenary Name of genus Powers as the type species of the genus specified in Col. (1) ) (2) Tetyra Fabricius, Cimex antillarum 1803 Kirkaldy, 1909 ; (b) that, where under Sub-Conclusion (5)(a) above, the Plenary Powers were used to designate as the type species of the genus concerned the species specified in Col. (2) of the table annexed to the said Sub-Conclusion, the generic name specified in Col. (1) should be placed on the Official List of Generic Names in Zoology and the trivial name. specified in Col. (2) as the name of the type species of the genus concerned should be placed on the Official List of Specific Trivial Names in Zoology ; (c) that in every case where, under (5)(a) above, the Plenary Powers were used to designate as the type species of a genus the species specified against the name of that genus in Col. (2) of the table annexed to that Conclusion, an Opinion should be rendered recording the decision so taken. 7. In accordance with the directions given in Conclusion (5)(a) (quoted above) taken by the International Commission in regard to this and the other applications there specified, the Secretary 196 OPINIONS AND DECLARATIONS to the International Commission on his return from Paris to London examined the Commission’s File Z.N.(S.) 144, relating to the foregoing cases. This examination showed that in no case had an objection been lodged against the use of the Plenary Powers in the manner recommended by the applicant. The decision taken conditionally in favour of granting the request contained in the present application, as set out in the extract from the Official Record of the Proceedings of the International Commission quoted in the immediately preceding paragraph, thereupon became definitive. The following is the note on this subject which for purposes of record Mr. Hemming then annexed to this portion of the Official Record (1950, Bull. zool. Nomencl. 4 : 474) :— Note by the Secretary to the Commission.— I have examined the Commission’s File Z.N.(S.) 144, and find (i) that Dr. R. I. Sailor (United States National Museum, Washington, D.C.) has registered his support for each of the proposals specified above, and (ii) that no adverse comment on the action proposed has been received from any source. (Signed) Francis Hemming, Secretariat of the Commission, London, N.W.1. 15th September 1948. 8. The following are the original references for the names which appear in the decision set out in paragraph 6 above :— antillarum, Cimex, Kirkaldy, 1909, Cat. Hemipt. (Heteropt.) 1 (Cimicidae) : 284 Tetyra Fabricius, 1803, Syst. Rhyng. : 128. 9. The gender of the generic name TJetyra Fabricius, 1803, referred to in the decision quoted in paragraph 6 above, is feminine. 10. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 115). 11. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners —— ee ee OPINION 255 197 present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. At the time of the adoption of the Ruling given in the present Opinion the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial” appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name’ and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 14. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 198 OPINIONS AND DECLARATIONS 15. The present Opinion shall be known as Opinion Two Hundred and Fifty-Five (255) of the International Commission on Zoological Nomenclature. Done in London this Sixteenth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING IE SR re IPN Ce i ee ee eee Printed in England by MetcaLFe & CoorerR Limitep, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.G., C.B.E. Secretary to the Commission VOLUME 5. Part 17. Pp. 199-230 OPINION 256 Emendation to Phlebotomus of the generic name Flebotomus Rondani, 1840 (Class Insecta, Order Diptera) under the Plenary Powers LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office | 41, Queen’s Gate, London, S.W.7 1954 Price Twelve Shillings (All rights reserved) Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 256 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. ae E. VoKEs (United States Geological Survey, Washington, D.C., Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEwsKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirspy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. Rizey (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Feo se re L. USINGER (University of California, Berkeley, California, .S.A.). OPINION 256 EMENDATION TO ‘*“* PHLEBOTOMUS ” OF THE GENERIC NAME ‘“ FLEBOTOMUS ”’ RONDANT, 1840 (CLASS INSECTA, ORDER DIPTERA) UNDER THE PLENARY POWERS RULING :—(1) Under the Plenary Powers the spelling of the generic name Flebotomus Rondani, 1840, is hereby emended to Phlebotomus. (2) The generic name Phlebotomus (emend. of Fleboto- mus) Rondani, 1840 (gender of name: masculine) (type species, by monotypy: Bibio papatasi Scopoli, 1786) (Class Insecta, Order Diptera) is hereby placed on the Official List of Generic Names in Zoology as Name No. 682. (3) The specific name papatasi Scopoli, 1786, as published in the combination Bibio papatasi, is hereby placed on the Official List of Specific Names in Zoology as Name No. 75. - (4) The name Flebotomus (Invalid Original Spelling of Phlebotomus) Rondani, 1840, is hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology as Name No. 65. I.—THE STATEMENT OF THE CASE In the summer of 1944 the attention of the International Commission on Zoological Nomenclature was drawn to a suggestion by Mr. William F. Rapp, Jr. (University of Illinois, Department of Entomology, Urbana, Illinois, U.S.A.) in a paper entitled “‘ The correct Generic Name of the Sand Fly ” published in April 1944 (Science (n.s.) 99 : 345) that the emended spelling 202 OPINIONS AND DECLARATIONS Phlebotomus for the generic name Flebotomus Rondani, 1840 (Class Insecta, Order Diptera) should be abandoned and a return made to the original spelling. The Executive Committee of the International Commission took the view that, having regard to the large literature associated with the name Phlebotomus and the importance of that name to workers in the medical field, a change in the spelling of this name should not be made without prior reference to the International Commission. Accordingly, on 22nd September 1944 Mr. Francis Hemming, Secretary to the International Commission, addressed to the editor of Science a note drawing attention to the foregoing considerations and appealing to interested workers to furnish their views to the Commission. This communication, which was published in Science (n.s.) 100 : 385 on 27th October 1944, was as follows :— The generic name of the Sand Fly By FRANCIS HEMMING (Secretary to the International Commission on Zoological Nomenclature) The attention of the Executive Committee of the International Commission has been drawn to the communications regarding the generic name of the Sand Fly by Dr. William F. Rapp, Jr., which appeared in the issues of Science for April 28 and August 11, last, and by Dr. Charles T. Brues in the issue for May 26, last. The proposed abandonment of the emended spelling Phlebotomus Agassiz, 1842, in favour of the original spelling Flebotomus used by Rondani when he first published this name in 1840, affects not only workers in systematic zoology but also—and perhaps especially— workers in the medical field in view of the enormous literature regarding the role played by this fly in the spread of disease. It is clearly of great importance that, in order to prevent confusion from arising, the correct spelling of this generic name should be settled as soon as possible. In view of the fact that the issue involved turns upon the interpretation of Article 19 of the International Code of Zoological Nomenclature, it appears to the Executive Committee that this is a matter which should be referred for decision to the International Commission on Zoological Nomenclature, as the authority officially charged with the duty of interpreting the application of the International Code in cases of difficulty. Communications in regard to this matter should be addressed to the International Commission on Zoological Nomenclature at their Publications Office, 41, Queen’s Gate, London, S.W.7. OPINION 256 203 2. In response to the appeal for comments on this case contained in the short paper by Mr. Hemming reproduced in the preceding paragraph, Dr. C. T. Brues (The Biological Laboratories, Harvard University, Cambridge, Massachusetts, U.S.A.) submitted to the International Commission the following request for an authoritative ruling as to the spelling to be adopted for this generic name :— ** Phlebotomus ”’ vs. ‘* Flebotomus ”’ By C. T. BRUES (The Biological Laboratories, Harvard University, Cambridge, Massachusetts, U.S.A.) In 1840, the Italian Entomologist Rondani described as Flebotomus, a genus of phlebotomic Diptera belonging to the family PSYCHODIDAE. In his Nomenclator Zoologicus, Agassiz changed the spelling to Phlebotomus as the derivation clearly intended was from the Greek ¢Ac Bos (vein) and rouy (cutting). It seems clear that the spelling Flebotomus by Rondani was a natural error for an Italian to make, but it is nevertheless completely at variance with the usual procedure in transliterating Greek into Latin, and should be regarded as a lapsus calami for Phlebotomus. At present there is a sad lack of uniformity in spelling the name of this genus which is an extremely important one in the field of medicine and public health. As these flies act as vectors of at least two important human diseases, they are consequently very commonly referred to in many publications. I wish to urge upon the International Commission on Zoological Nomenclature that it consider this matter, so that its decision may be made available to workers in the several fields of science that are concerned with these flies. Il—THE SUBSEQUENT HISTORY OF THE CASE 3. Registration of the present application: Ymmediately upon the issue by the Secretary of the appeal to specialists for advice reproduced in the first paragraph of the present Opinion, the 204 OPINIONS AND DECLARATIONS problem represented by the rival spellings Phlebotomus and Flebotomus was allotted the Registered Number Z.N.(S.) 169. 4. View submitted by Mr. William F. Rapp, Jr. (University of Illinois, Department of Entomology, Urbana, Illinois, U.S.A.) : At the time of the issue of the appeal reproduced in the first paragraph of the present Opinion, the Secretary wrote to Mr. William F. Rapp, Jr., as the author by whom the abandonment of the emendation Phlebotomus had been proposed, inviting him to furnish a statement of his views for the consideration of the Commission. In response to this invitation, Mr. Rapp submitted the following paper on 20th October 1944 :— The Generic Name of the Sand Fly By WILLIAM F. RAPP, Jr. (University of Illinois, Department of Entomology, Urbana, Illinois, U.S.A.) In the issue of Science for May 26, 1944, I published a note stating that the correct spelling. of the generic name of the Sand Fly is Flebotomus and not Phlebotomus as commonly spelled by parasitolo- gists. The basis for this statement is the fact that Camillo Rondani in Sopra una specie di Insetto Dittero ; Memoria prima per servere alla Ditterologia Italia, page 12 erected the genus Flebotomus. Prof. Charles T. Brues of Harvard College, in the issue of Science for May 26, 1944, claimed that the correct generic name is Phlebotomus because the name was derived from the Greek words (¢Ae4) vein and (rouwos) cutting. According to him and certain other entomologists, Rondani’s name contained an “evident typographical error’”’ since the name was obviously derived from the Greek (¢Ae¥) vein and (ropes) cutting. It is true that Agassiz in 1846, in his Index Universalis, changed the spelling to. Phlebotomus and gave the Greek derivation as quoted by Brues, although he recognized that Rondani had spelled it with an “f°? in his description. In the Praefatio to the Index Universalis, Agassiz explained that he improved names wherever he thought it necessary. Discussing the derivation of the word first, the question arises as to whether ¢dAéy and rods would be translated with an “f” or a OPINION 256 205 “ph”. Agassiz did not use the classical form of Latin commonly taught in schools today. Furthermore, Italians often translate the Greek “ ph” as “f’’. However, this is a problem for students of classical languages rather than for those of zoological nomenclature. The main problem is whether the original spelling of the word Flebotomus can be changed. According to Article 19 of the Inter- national Code of Zoological Nomenclature, names cannot be re-described with a better spelling as suggested by Agassiz, for the article states : The original orthography of a name is to be preserved unless an error of transcription, a /apsus calami or a typographical error is evident. Then has a typographical error occurred as suggested by Brues ? Since Rondani himself used the name Flebotomus many times after publishing the original description, there is no evidence that he thought that a typographical error had been made. Brues bases his argument on a typographical error on the derivation of a word. It is very likely that Rondani may not have had any such derivation as ¢Ae¥¢ and rouos in mind when he described the species. The International Commission on Zoological Nomenclature has already established a precedence for such cases in Opinion 34 on Article 19 : Since evidence of the derivation of the word is not contained in the original publication, the original spelling shall be preserved. From the Rules of the Code, therefore, a name cannot be changed simply to obtain a better spelling either to satisfy what others believe the correct derivation of the word to be or to agree with a series of medical terms as Professor Brues, in his article, suggests. If we are not to follow these rules, for what purpose do they exist ? In my opinion, no error of transcription, /apsus calami or typo- graphical error has occurred and following the International Code, the generic name of the Sand Fly should remain as in the original description—Flebotomus. 5. View submitted by Dr. Franklin C. MacKnight (New Orleans, Louisiana, U.S.A.) : On 7th October 1945, Dr. Franklin C. MacKnight (New Orleans, Louisiana, U.S.A.) furnished the following statement commenting on the views on the present case expressed (1) by Professor Harold Kirby (University of California, Berkeley, California, U.S.A.) and (2) Professor 206 OPINIONS AND DECLARATIONS Charles H. Blake (Massachusetts Institute of Technology, Cam- bridge, Mass., U.S.A.) in notes published earlier that year in the serial publication Science :— On the Correction of Orthographic Errors in Taxonomy By FRANKLIN C. MAcKNIGHT (New Orleans, Louisiana, U.S.A.) Intermittently during the past fifteen months there has appeared in these columns a discussion concerning the interpretation of Article 19 of the International Rules of Zoological Nomenclature as concerns the corrections of fautes d’orthographe, a matter of much practical importance to the systematic taxonomist. It started over the Sand Flea. In the issue of April 25, 1944 there appeared a note by W. F. Rapp, pointing out that the synonym or variant Phlebotomus should be abandoned for the original Flebotomus Rondani. On May 22 came a reply from Prof. Charles T. Brues who stated that Flebotomus had been emended to Phlebotomus as a “ very evident typographical error’. Rapp’s reply of August 11 pointed out that since the original transliteration from the Greek was demonstrably deliberate and phonetic, though unorthodox, it could not be considered a typographical error. In the issue of November 10, 19441, Prof. Harold Kirby discussed the matter thoroughly and drew the following conclusions: (1) that the /apsus calami or “‘ slip of the pen ”’ of Article 19* of the International Rules of Zoological Nomenclature is a mistranslation of the French faute dorthographe, and (2) that therefore “‘if in transcribing or in transliterating a word of Greek derivation an error is made, restoration of the correctly derived word is appropriated to the most rigid insistence on priority ” The only further correspondence in the controversy has been a note on February 16, 1945 by Prof. Charles H. Blake recording agreement with Kirby and requesting the enforcement of emendation of such *“ barbarous forms as Flebotomus ”’ The absence in the meantime of comments adverse to Kirby’s stand is puzzling, since he goes further than a strict reading of the * Article 19 states ““ The original orthography of a name is to be preserved unless an error of transcription, a /Japsus calami, or typographical error is evident ”’. (F.C.M.) 1 Kirby (H.) 1944 “‘ Une faute de transcription, d’orthographe, ou d’impression ”’, Science 100 : 47 5—427. EE ————e ee lone OPINION 256 207 _Tules permit, and it seems necessary for someone to present the other _ side of the case. By his examples Kirby seems to infer that all deviations from the orthodox method of transliteration from the Greek be considered as errors. This extreme position cannot be maintained in the light of the Opinions of the Commissioners acting on their interpretation of Article 19; and Kirby admits that these Opinions “constitute a valuable commentary”’. It is true that Article 8, Recommendation (a), may seem to apply to Article 13 in stating that the rules of Latin transliteration (as given in appendix F of the Rules) should be followed when a Greek substantive is used ; but nowhere is it expressed that these rules are to be considered compulsorily retroactive. Hence it seems evident that they are to be considered only as recommendations of proper form for future work, as in the Botanical Rules. It must be realised that these transcription rules, in addition to calling for certain normal equivalents of most Greek letters and the recognition of the operation of a few special phonetic changes (yy to ng, yx to nch, yx to nc), also require latinization of « to c (not k), aw to ae (not ai), . On the other hand in another case (regarding the type species of the genus Mabuya Fitzinger, 1826, about which a mistake had been made in Opinion 92), specialists in the group concerned had realised that the decision given by the Commission was erroneous and had accordingly ignored that decision. In this case the Commission had considered it sufficient to correct the previous error®. In the present instance it was not so clear what was the best course to take. In the first place the Commission had not given in Opinion 13 an absolute ruling on the question of what was the oldest available trivial name for the Sand Crab; all that it had done was to state that on the basis of the premises submitted (which it had not itself verified) the oldest available trivial name for that species was albicans Bosc [1801—1802] (as published in the binominal combination Ocypoda albicans). This form of decision had been adopted in this and other early Opinions not because the Commission wished to impugn the accuracy of the premises submitted to it but because at that time (which was several years prior to the establishment of the first of the Official Lists) it did not regard it as part of its functions to give an absolute ruling in such a case. Nevertheless, this form of decision inevitably detracted from the authority of the ruling given and might therefore influence workers in deciding what name to apply to the species in question (in this case, the Sand Crab). So far, however, as he had been able to ascertain, this species, as the result, presumably, of Opinion 13, was now generally known by the trivial name albicans Bosc. If this was in fact the general practice, the consistent course for the Commission to adopt would 5 See Opinion 226 (1954, Ops. Decls. int. Comm. zool. Nomencl. 4 : 177—200). 6 See Opinion 240 (pp. 1—12 of the present volume). OPINION 262 315 be to use its Plenary Powers to validate the name albicans Bosc by suppressing the earlier available trivial name quadratus Fabricius, 1787 (as published in the binominal combination Cancer quadratus). The species in question was, he understood, confined to the Atlantic shores of the American Continent from Rhode Island to Santa Catharina in Brazil. It was therefore desirable that the Commission should be in possession of the views of American specialists before they decided what action to take in this matter. In the circumstances, he (the Acting President) suggested that the Commission should now agree that its Plenary Powers should be used to validate the trivial name albicans Bosc as the trivial name of the Sand Crab, if after the close of the present Session specialists indicated that they considered that confusion would arise if, consequent upon the discovery of the error in the premises on which Opinion 13 had been based, it were necessary to replace the trivial name albicans Bosc by the trivial name quadratus Fabricius as the trivial name of the Sand Crab. This would not involve any delay in the publication of the Opinion recording the decisions taken on the present application, for some time would necessarily elapse before it would be possible to publish all the Opinions recording the decisions taken during the present Session, and the Opinions relating to the present matter could readily be left as one of the last to be so published. It would, however, be reasonable to fix some time limit, for the reception of comments. He suggested a period of six months from the date of the publication of the Minutes recording the present decision. At the same time he would take steps to bring the matter to the attention of specialists in the group concerned, particularly workers on the American Continent. IN THE SUBSEQUENT DISCUSSION, it was generally agreed that it was essential that the errors in Opinion 13 should be corrected. It was felt, however, that this question was quite independent of the question of whether or not the Plenary Powers should be used to validate the name albicans Bosc [1801—1802], as the trivial name of the Sand Crab. On this, the general view was that, as it was the Commission itself which was mainly responsible for the acceptance of the foregoing name as the trivial name of this species, through their action in adopting Opinion 13 thirty-eight 316 OPINIONS AND DECLARATIONS years earlier, it should certainly agree now that its Plenary Powers should be used if on enquiry it were to be found that specialists considered that confusion would ensue if it were necessary to adopt the name quadratus Fabricius as the trivial name of the Sand Crab. 9. The following extract from the Official Record of the Proceedings of the International Commission sets out the decision reached by it in the present case (Paris Session, 14th Meeting, Conclusion 53) (1950, Bull. zool. Nomencl. 4 : 573—580) :— THE COMMISSION agreed :— (1) to cancel Opinion 13, relating to the trivial name of the Sand Crab (Class Crustacea, Order Decapoda), the decision set forth in that Opinion being incomplete, in part incorrect, and the whole entirely misleading ; (2) that, even if the names published in 1771 by Edwards (G.) in his edition of Mark Catesby’s Natural History of Carolina, had been available under the Reég/es the trivial name arenarius as so published by Edwards in 1771 in the binominal combination Cancer arenarius, though the first such name given to the Sand Crab subsequent to the starting point of zoological nomen- clature (1758), would have been invalid, since that name would in any case have been a homonym of the earlier trivial name arenarius Toreen, 1765 (as published in the binominal combination Cancer arenarius), a name bestowed by Toreen upon an entirely different species found at a place named Queda in the Straits of Malacca, an area far removed from that in which the Sand Crab occurred ; and that the trivial name arenarius as published by Edwards in 1771 should now be placed on the Official Index ; OPINION 262 317 (3) that the first trivial name bestowed upon the Sand Crab after the name arenarius had been cited in connection therewith by Edwards in 1771 was the trivial name quadratus Fabricius, 1787 (as published in Vol. 1 of the Mantissa Insectorum in the binominal combination Cancer quadratus) ; (4) that the trivial name quadratus Fabricius, 1787, was an available name, not being invalidated by the prior use of the same trivial name in combination (or associa- tion) with the generic name Cancer (a) by Meuschen in 1781 in his index to the Zoophylacium Gronovianum of Gronovius, and (b) by Meuschen in 1778 in his own work, the Museum Gronovianum, both of which the Commission had ruled to have failed to comply with the requirements of the Régles, names published in these works, in consequence, possessing no status in zoological nomenclature ; (5) before deciding what action should be taken in regard to the trivial name of the Sand Crab, consequent upon the discovery of the error in regard thereto contained in the Commission’s Opinion 13, to ascertain from interested specialists whether, in their opinion, confusion and instability would ensue, if it were now necessary to rectify the erroneous decision published as far back as 1910 in the Opinion referred to above, and if, in consequence, it were now necessary to use the trivial name quadratus Fabricius for the foregoing species ; and for this purpose to request the Secretary to the Commission to seek the views on this question held by interested specialists by the publication of a notice in the Bulletin of Zoological Nomenclature or otherwise ; (6) that, on the expiry of a period of six months from the date of publication of the present decision in the Bulletin of Zoological Nomenclature, the following action should be taken in the light of the comments received from specialists in response to the consultation referred to in (5) above :— (a) if specialists were of the opinion that confusion and instability would result from the adoption of the 318 OPINIONS AND DECLARATIONS trivial name quadratus Fabricius for the Sand Crab : to use the Commission’s Plenary Powers (i) to suppress the trivial name quadratus Fabricius, 1787 (as published in the binominal combination Cancer quadratus) and to validate the trivial name albicans Bosc [1801—1802] (as published in the binominal combination Ocypoda albicans), at the same time placing the first of these trivial names on the Official Index of Invalid and Rejected Specific Trivial Names in Zoology and the second on the Official List of Specific Trivial Names in Zoology ; (b) if specialists were of the opinion that confusion and instability would not result from the adoption of the trivial name quadratus Fabricius for the Sand Crab: to place the trivial name quadratus Fabricius, 1787 (as published in the binominal combination Cancer quadratus) on the Official List of Specific Trivial Names in Zoology ; (7) on a decision being taken either in the sense indicated in (6) (a) above or in that indicated in (6) (b) above, to render an Opinion recording the decisions specified in (1) to (4) above, and setting out, as the case may be, either the decision specified in (6) (a) above or that specified in (6) (b) above. 10. The decision taken in this case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 120). 11. The decision quoted in paragrdph 9 above was concurred in by the sixteen (16) Commissioners and Alternate Commissioners ee OPINION 262 319 present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 12. The decision referred to above was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 13. The Part (Triple-Part 19/21) of volume 4 of the Bulletin of Zoological Nomenclature containing the Official Record of the decision reached in the present case was published on 9th June 1950, from which date therefore the six-month period referred to in Sub-Conclusion 6 quoted in paragraph 9 above began to run. At the close of that period no representations had been received as to the possibility of confusion arising if the specific name of the Sand Crab were to be changed from albicans Bosc, [1801—1802] to the older name quadratus Fabricius, 1787. In view, however, of the fact that in 1948 Dr. Fenner Chace had expressed doubts as to the desirability of making this change (paragraph 4 above), Mr. Hemming, as Secretary to the Commission, wrote to Dr. Chace on 9th December 1950, asking him to furnish a statement of his views on this question and, if possible, an indication of the views of other American carcinolo- gists. On 18th January 1951 Dr. Chace replied that it was unlikely that he would submit any recommendations on this matter. Somewhat later, however (on 21st March 1951), Dr. Fenner Chace wrote: “If it is the considered opinion of the Commission that the Meuschen index to the ‘ Zoophylacium Gronovianum’ is not available and that the name quadratus Fabricius then becomes the earliest available name for the Sand Crab, I favor the acceptance of that name ”’. 320 OPINIONS AND DECLARATIONS 14. On 17th April 1951 an attempt to obtain further views on this question from interested specialists was made by the issue to the serial publications Nature and Science (the two publications currently nominated as those to which notices regarding the possible use of the Commission’s Plenary Powers should be despatched) of a notice drawing attention to a note by the Secretary to the Commission regarding the options embodied in the decision taken in Paris and soliciting the views thereon of interested specialists, which was then on the point of being published in the Bulletin of Zoological Nomenclature. This note by Mr. Hemming, which was published three days later, was as follows (Hemming, 20th April 1951, Bull. zool. Nomencl. 2 : 105) :-— Request for views of specialists on the question whether the substitution, as required by the ‘‘ Régles’’, of the name ‘‘ quadratus ” Fabricius, 1787, for the name ‘‘ albicans ’’ Bosc [1801—1802], as the trivial name of the Sand Crab (Class Crustacea, Order Decapoda) would give rise to confusion or instability By FRANCIS HEMMING, C.M.G., C.B.E. (Secretary to the International Commission on Zoological Nomenclature) At its Session held in Paris in 1948, the International Commission on Zoological Nomenclature, after reviewing the information available, decided to cancel its earlier Opinion 13 as being “‘ incomplete and, in part, incorrect’’. At the same time the Commission agreed upon the adoption of Opinions on all the issues raised in Opinion 13, except that regarding the trivial name to be used for the Sand Crab, which, as explained below, was reserved for further consideration. 2. On this question the Commission gave a ruling that, under the Régles, the correct trivial name for this species was quadratus Fabricius, 1787 (as published in the binominal combination Cancer quadratus) and not the name albicans Bosc [1801—1802], (as published in the binominal combination Ocypoda albicans), as had incorrectly been stated in Opinion 13. The Commission decided, however, before finally rendering an Opinion in this sense,'to ascertain from interested specialists whether the substitution of the name quadratus Fabricius for the name albicans Bosc as the trivial name of the Sand Crab would OPINION 262 321 be likely to give rise to “‘ confusion and instability’. The Commission placed on record that, if specialists were to consider that the adoption for this species of the trivial name guadratus Fabricius would lead to these results, it would forthwith use its Plenary Powers for the purpose of suppressing the foregoing name, thus validating the name albicans Bosc. 3. A full account of the considerations which lead up to the fore- goimg decisions is given in the Official Record of Proceedings of the International Commission at its Paris Session, 14th Meeting, Conclusion 53 (see 1950, Bull. zool. Nomencl. 4 : 573—580). 4. In accordance with the procedure described above, specialists in this group are particularly requested to send to the International Commission as soon as possible, statements describing current nomen- clatorial practice in this matter and setting out their views on the question of the possible use of the Plenary Powers in this case. Such statements should be addressed to the Secretary to the International Commission on Zoological Nomenclature at the Secretariat of the Commission (28 Park Village East, Regent’s Park, London, N.W.1, England). 15. On 24th February 1952 the progress reached in dealing with the present case was reviewed by Mr. Hemming, as Secretary to the International Commission, who then placed the following Minute on the Commission’s File Z.N.(S.) 271 :— Option given to specialists in the decision taken by the International Commission in Paris in 1948 in the case of the specific trivial name of the Sand Crab By FRANCIS HEMMING (Secretary to the International Commission on Zoological Nomenclature) A period of about ten months has now elapsed since the publication (on 20th April 1951) in the Bulletin of Zoological Nomenclature (vol. 322 OPINIONS AND DECLARATIONS 2: 105) of my notice regarding the option contained in the decision taken by the International Commission in Paris in 1948 in the case of the specific trivial name of the Sand Crab, and during this period no specialist has submitted to the International Commission a request for the use of its Plenary Powers for the purpose of setting aside the Law of Priority in the case of the specific trivial name of the foregoing species by suppressing the name quadratus Fabricius, 1787, as published in the combination Cancer quadratus, in favour of the name ses Bosc [1801—1802], as published in the combination Ocypoda albicans. 2. A period of over twenty months has now elapsed since the publication (on 9th June 1950) of the decision taken by the International Commission in Paris in 1948, and in view of this fact and of the non- receipt during the whole of that period of any request for action under the Plenary Powers, although the time-limit set by the Commission for the submission of such applications was a period of six months calculated from the publication of the Paris decision, it would be possible now to make a formal declaration that the option given in the Paris decision has expired and that the conditional decision set out in Sub-Conclusion (6) (b) in the group of decisions which together constitute the Fifty-Third Conclusion of the Fourteenth Meeting of the Paris Session of the International Commission has now come into full operation. 3. In view, however, of the fact that the pressure of work connected with the preparations for the Session of the Commission to be held at Copenhagen in 1953 makes it impossible at present, and is likely to make it impossible for some time, to render a formal Opinion in the present case, I propose to include one further notice in regard to this case in the collection of notices in regard to individual cases left over at Paris for further consideration shortly to be published in the concluding Double-Part (Double-Part 7/8) of volume 7 of the Bulletin of Zoological Nomenclature. This notice has been sent to the printer today. 16. The note by Mr. Hemming referred to in the concluding paragraph of his Minute of 24th February 1952 was published on 15th April 1952 (Hemming, 1952, Bull. zool. Nomencl. 7 : 209— 210), and at the same time a further notice on this subject was OPINION 262 323 sent to the serial publications Nature and Science. The note so published in the Bulletin was as follows :— Case 17: Question of the trivial name to be accepted as the trivial name of the Sand Crab (Class Crustacea, Order Decapoda) (See 1950, Bull. zool. Nomencl. 4 : 573—580) eoececeerer oe eee eee ee ee eee ec eee eee oer eo ses oe 39. In Paris in 1948 the International Commission on Zoological Nomenclature reviewed the subjects dealt with in its Opinion 13 (1910, Smithson. Publ. 1938 : 22—24), an Opinion in which (in accordance with the practice of that day) no definite decision was given, the decision reached being expressly recorded as being given “‘ under the premises submitted’. In the light of the information before it at the time of this review the International Commission cancelled Opinion 13 and, so far as concerns the portion of that Opinion which related to the question of the trivial name of the Sand Crab, ruled (1) that the trivial name quadratus Fabricius, 1787 (as published in the binominal combination Cancer quadratus), a name given to the Sand Crab, was an available name, (2) that, before it decided whether or not to correct . the error in regard to this matter contained in Opinion 13, i.e., before deciding whether to render an Opinion ruling that the name quadratus Fabricius, 1787, was the oldest available such name and was therefore to be used in preference to the name albicans Bosc [1801—1802], (as published in the binominal combination Ocypoda albicans) (the name incorrectly stated in Opinion 13 to be the oldest trivial name for the Sand Crab), interested specialists should be consulted on the question whether instability and confusion would be likely to ensue if the decision taken in 1910 in the foregoing Opinion were now to be reversed by the adoption of the name quadratus Fabricius, 1787, as the name for the Sand Crab. The Commission further decided that, if specialists were of the opinion that the foregoing results would accrue, the Plenary Powers should be used to suppress the trivial name quadratus Fabricius and to validate the trivial name albicans Bosc, but that, if specialists were of the opinion that the foregoing adverse results were not to be expected, the trivial name quadratus Fabricius, 1787, should be placed on the Official List of Specific Trivial Names in Zoology. 40. The views of interested carcinologists are particularly requested as to the relative advantages of the two courses set out above, in order that, this aspect of the question having been settled, an Opinion may be rendered in accordance with the decision taken by the International Commission at its Paris Session. 324 OPINIONS AND DECLARATIONS 17. The question as to which of the alternative decisions taken by the International Commission in regard to the name to be accepted as the specific name of the Sand Crab should become the substantive decision by the Commission in this matter was brought to a conclusion on 16th October 1952, when Mr. Hemming, as Secretary to the International Commission, signed the following Minute of Determination :— Decision by the International Commission on Zoological Nomenclature as to the Specific Trivial Name to be used for the species of the Order Decapoda (Class Crustacea) commonly known as the Sand Crab MINUTE dated 16th October 1952 by FRANCIS HEMMING (Secretary to the International Commission on Zoological Nomenclature) At the Fourteenth of its meetings held in Paris in 1948, the International Commission on Zoological Nomenclature, after reaching the conclusion that, contrary to the statement contained in Opinion 13 published in 1910, the oldest available specific trivial name for the Sand Crab was quadratus Fabricius, 1787, as published in the combination Cancer quadratus, decided to provide an opportunity for any zoologist who might so desire, to submit an application for the use, in the interests of nomenclatorial stability, of the Commission’s Plenary Powers, for the purpose of suppressing the foregoing trivial name, thus rendering the trivial name albicans Bosc [1801—1802], as published in the combination Ocypoda albicans, the oldest available name for the Sand Crab, as it was erroneously stated so to be in Opinion 13. For this purpose the Commission (a) instructed me to seek out the views of interested specialists on the foregoing subject, and (b) set, as the time limit for the receipt of applications in the foregoing sense, a period of six months calculated from the date of the publication in the Bulletin of Zoological Nomenclature of the portion of the Official Record of the Proceedings of the International Commission at its Paris (1948) Session containing the decision referred to above (Paris Session, 14th Meeting, Conclusion 53). 2. The portion of the Official Record of the Proceedings of the International Commission in Paris referred to above was published on 9th June 1950, and in consequence the six-month period prescribed by the International Commission expired on 9th December 1950. No comments on the present case were received during that period, and, in an effort to obtain expressions of opinion on this case, two notes OPINION 262 BS on it have since been published in the Bulletin, the first, in volume 2 on 20th April 1951 and the second, in volume 7, on 15th April 1952, the time limit having been extended to permit of the receipt of communica- tions in response to the appeals so made. In addition, attempts have been made to elicit the views of carcinologists, both by correspondence and by the issue of notices to the serial publications Nature and Science. These efforts have proved entirely fruitless, and it is evident that there is no desire—or no articulate desire—among carcinologists to conserve the trivial name albicans Bosc, [1801—1802], at the expense of the older name quadratus Fabricius, 1787, as the specific trivial name of the Sand Crab. 3. Having regard to the fact that no application has been received for the conservation under the Plenary Powers of the trivial name albicans Bosc for the Sand Crab, notwithstanding the fact that, to permit of the submission of such applications, if such were desired, the time limit of six months set by the Commission in Paris has been extended on several occasions until a period of over twenty-eight months has been allowed for this purpose, I now, as Secretary to the International Commission on Zoological Nomenclature, declare as follows : (1) The option set out in Points (a) and (b) of Sub-Conclusion (6) of the group of such Sub-Conclusions which, taken together, constitute the Fifty-Third Conclusion reached by the International Commission at the Fourteenth Meeting of its Session held in Paris in 1948, which provides for the use, on the application of interested specialists, of the Plenary Powers for the purpose of suppressing the trivial name quadratus Fabricius, 1787, as published in the combination Cancer quadratus, thus rendering the trivial name albicans Bosc, [1801— 1802], as published in the combination Ocypoda albicans, has expired, no application in the foregoing sense having been received by the International Commission, notwithstanding the fact that the time limit for the receipt of any application in this sense has been extended from time to time, until now, instead of six months, the period prescribed in Paris, a period of over twenty-eight months has been provided for this purpose. (2) In the light of (1) above, the decision set out conditionally in the Sub-Conclusion numbered (6) (b) referred to in (1) above has now entered formally into force, and, in consequence, the following decisions have been taken by the International Commission, namely : (a) that the trivial name quadratus Fabricius, 1787, as published in the combination Cancer quadratus, is to be accepted as the oldest available trivial name of the Sand Crab ; (b) the foregoing trivial name is now to be placed on the Official List of Specific Trivial Names in Zoology ; (c) the following trivial names published in works which were rejected for nomenclatorial purposes by the Commission at its Session held in Paris in 1948 are now to be placed on the Official Index of Specific Trivial Names in Zoology :—(i) arenarius Catesby in Edwards, 1771, as published in the combination Cancer arenarius; (i) quadratus Meuschen, 1778, as published in the combination Cancer quadratus (published in the Museum gronovianum) ; (iti) quadratus Meuschen, 326 OPINIONS AND DECLARATIONS 1781, as published in the same combination (published in the Index to Gronovius’ Zoophylacium gronovianum). 18. The following are the original references for the names placed on the Official Lists and Official Indexes in the Ruling given in the present Opinion :— arenarius, Cancer, Catesby, 1771, Natural History of Carolina (Edwards’ ed.) 2 : pl. 35; Linn. Index, no. 35 quadratus, Cancer, Meuschen, 1778, Mus. gronov. : 84 quadratus, Cancer, Meuschen, 1781, Index to Gronovius’ Zoophylac. gronov. quadratus, Cancer, Fabricius, 1787, Mantissa Ins. 1 : 315 19. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’ appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 20. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. OPINION 262 B27, 21. The present Opinion shall be known as Opinion Two Hundred and Sixty-Two (262) of the International Commission on Zoological Nomenclature. Done in London, this Twenty-Fourth of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the Commission 4A << _, : | Cy : ai VOLUME 5. Part 24. Pp. 3298—342 ies suai HE gO. ee \Z | ~e OPINION 263 Ne Designation, under the Plenary Powers, of a description to represent the lectotype of the nominal species Papilio podalirius Linnaeus, 1758 (Class Insecta, Order Lepidoptera) LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Five Shillings and Threepence (All rights reserved) Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 263 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum. (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. ony. E. VOKES oa States Geological Survey, Washington, D.C., U.S.A Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). €. Alternate Members of the Commission at the Session held in Paris in 1948 Q Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. MeTCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Set Sur ai L. UsinGer (University of California, Berkeley, California, U.S.A.). OPINION 263 DESIGNATION, UNDER THE PLENARY POWERS, OF A DESCRIPTION TO REPRESENT THE LECTOTYPE OF THE NOMINAL SPECIES ‘“ PAPILIO PODALIRIUS ” LINNAEUS, 1758 (CLASS INSECTA, ORDER LEPIDOPTERA) RULING :—(1) Under the Plenary Powers, the first of the three references cited by Linnaeus when publishing the name Papilio podalirius (Class Insecta, Order Lepi- doptera), namely the reference cited as “ Raj. ins. iil. n.3” (.e. Ray (J.), 1710, Hist. Ins.: III, n. 3), is hereby designated to represent the lectotype of the foregoing nominal species. (2) In view of the fact that in the passage cited above Ray stated that the specimens there referred to were taken “prope Liburnum, portum in Etruria” (i.e. at the port of Livorno in Tuscany), this locality becomes, under (1) above, the restricted locality for the nominal species Papilio podalirius Linnaeus, 1758. (3) The undermentioned specific names are hereby placed on the Official List of Specific Names in Zoology as Names Nos. 77 and 78 : (a) podalirius Linnaeus, 1758, as published in the combination Papilio podalirius and as defined in (1) and (2) above ; (b) feisthamelii Duponchel 1832, as published in the combination Papilio feist- hamelii, this entry on the Official List to be without prejudice to the prior rights of the specific name podalirius Linnaeus, 1758, as published in the combination Papilio podalirius, from the standpoint of those specialists who regard these as the names of subspecies of a single collective species. I.—THE STATEMENT OF THE CASE On 18th March 1945, Dr. A. Steven Corbet (British Museum (Natural History), London) submitted to the International 332 OPINIONS AND DECLARATIONS Commission the following preliminary note foreshadowing an application for a ruling as to which of two allied species is that to which the name Papilio podalirius Linnaeus, 1758 (Class Insecta, Order Lepidoptera) should be held to apply, i.e. whether it applied to the Common Central European species commonly known by that name or, alternatively, to the North African and Spanish species or subspecies universally known by the specific name feisthamelii Duponchel, 1832 :— Request for a Ruling on the question of the species to which the name ** podalirius ’’ Linnaeus, 1758, as published in the combination ‘* Papilio podalirius ’’ should be applied By A. STEVEN CORBET (British Museum (Natural History), London) Extract from a letter dated 18th March 1945 I enclose a draft of some notes on Papilio podalirius L..... , which contains all the relevant information, although I feel sure that it could be put together in a more logical manner. .... Regarding P. podalirius, it looks as if the type selection by Aurivillius ought to be taken into consideration, although it should not be overlooked that Aurivilltus was concerned primarily with the Lepidoptera described in the Mus. Lud. Ulr. and not those in the Syst. Nat. ed. 10. Enclosure to Dr. A. Steven Corbet’s letter of 18th March 1945 ** Papilio podalirius ’’ Linnaeus, 1758 This name was first introduced by Linnaeus in a footnote to Papilio protesilaus on page 463 of Edition 10 of the Systema Naturae (1758). No description was given but reference was made to descriptions by Ray, Roésel and Réaumur and there were added ‘“‘ Habitat in Europae australis & Africae Brassica”. Of the authors cited by Linnaeus, only Ray gave a locality: ‘‘ Prope Liburnum portum in Etruria invenimis, atque etiam, ni male memini, in Anglia”. There is a female specimen of the North African butterfly P. feisthamelii Dup.,* summer brood /otteri Aust. in the Linnean Collection which bears the name “ podalirius’’ in Linnaeus’ handwriting. Had this specimen been in the Linnean Collection at the time Edition 10 was written * Spelling checked : Verity incorrect. OPINION 263 333 it would have been regarded as the type but, as Verity suggests, there are reasons for believing that this specimen reached Linnaeus after Edition 10 had been completed and that Linnaeus had no first-hand knowledge of the butterfly at the time that he wrote the description. Linnaeus published a detailed description of P. podalirius in Mus. Lud. Ulr. in 1764 (p. 208), citing further references but giving “‘ Habitat in Brassica Europae australioris’’. When he examined the Queen’s collection, Aurivillius found no specimen corresponding to podalirius, but he selected Résel’s figure as typical. In 1767, Edition 12 of Systema Naturae (p. 751), Linnaeus gave an abbreviated description of P. podalirius, adding three more citations and amending the provenance to ‘* Habitat in Brassica Europae australis Africaeque borealis ”’. 2. The question as to which species,t P. podalirius auctt. or P. feisthamelii Dup., the name “ podalirius ’’ should be applied appears to turn on whether or not Linnaeus possessed the specimen of the African species (now in his collection) at the time he wrote Edition 10. 3. Linnaeus received material from North Africa from Erik Brander, who was Swedish Consul at Algiers, 1753—-1765. Verity believes that the Linnean specimen of P. feisthamelii was obtained in this way. It is known that Brander sent specimens to Queen Ludovica Ulrica also (see letter from Brander to Linnaeus dated 23. viii. 1756) although, be it noted, there is no reference to Africa in the habitat given for P. podalirius in Mus. Lud. Ulr. In Linnaeus’ own marked copy of Edition 10, P. podalirius is not marked as being in his own collection, although it is so marked in the Linnaean copy of Edition 12. There is no mention of Brander in Edition 10, although he is mentioned several times in Edition 12 in the descriptions of Lepidoptera and some of the insects (but not all) attributed to Brander are marked in the Linnean copy of Edition 12 as being in Linnaeus’ collection, where, in fact, they have been found. There is, then, much justification for Verity’s view that neither P. podalirius auctt. nor P. feisthameli Dup. were known to Linnaeus at the time he wrote Edition 10, except from figures. 4. If the type of P. podalirius Linnaeus, 1758, is not a specimen in the Linnean Collection it can only be one of the specimens on which the descriptions of Ray, Résel, or Réaumur were based. As only the first-named author gave localities, it may seem reasonable to take one of these and thus finally establish the identity of “ podalirius’’. If the choice lies between Etruria and England, the former is preferable because it accords with the Linnean habitat of South Europe and it + According to Verity, P. podalirius and P. feisthamelii Dup. fly together in Spain and Portugal and even down to Tangiers in Morocco. 334 OPINIONS AND DECLARATIONS is doubtful if the butterfly occurred in England within historic times. On the other hand, can Aurivillius’ selection (Rec. Crit. Lep. Mus. Lud. Ulr., p. 28) be lightly set aside ? Why Linnaeus added “ Africa ’’ to the habitat in Editions 10 and 12 is not known but it must not be overlooked that this mention is a point in favour of the specimen of P. feisthamelii being in Linnaeus’ possession at the time he wrote Edition 10. 5. The balance of the evidence suggests that there was no specimen before Linnaeus when he first introduced the name “‘ podalirius ”’ and so the type locality must be fixed from the data given by Ray, Résel or Réaumur. Aurivillius’ selection of Résel’s figures fixed ‘‘ podalirius ”’ as the European species (presumably the German form) and it is suggested that this should be followed. Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On the receipt of Dr. Corbet’s letter, the problem dealt with in the present Opinion was given the Registered Number Z.N.(S.) 183. As soon as practicable thereafter, discussions were started with Dr. Corbet, by Mr. Francis Hemming, Secretary to the Commission, who, as a lepidopterist, was already familiar with the problem involved, the object of these discussions being to settle the precise nature of the request to be submitted to the International Commission and, generally, to finalise Dr. Corbet’s application which, as it will have been seen (paragraph 1) was submitted only in draft form. These discussions were completed in the summer of 1946, and on 15th August of that year, the outcome was formally placed on record by Mr. Hemming in the following paper which was then placed in the Commission’s File Z.N.(S.) 183 :— On the need for action by the International Commission on Zoological Nomenclature to put an end to the confusion arising from the present doubts as to the identity of the species to which the name ‘* Papilio podalirius ’’ Linnaeus, 1758 (Class Insecta, Order Lepidoptera) is applicable By FRANCIS HEMMING, C.M.G., C.B.E. (London) My old friend Dr. Roger Verity of Florence performed a valuable service when just before the First World War he carried out a critical OPINION 263 335 examination of the butterflies preserved in the Linnean collection at Burlington House (“‘ Revision of the Linnaean Types of Palaearctic Rhopalocera’’. Verity, 1913, J. linn. Soc. Lond. (Zool.) 32 : 173—191), It was unfortunate, however, that this paper was published before the grant to the International Commission on Zoological Nomenclature, by the Ninth International Congress of Zoology, Monaco, 1913, of Plenary Powers to suspend the application of the Régles in cases where strict application would lead to serious confusion, especially where under the Rég/es it is necessary to transfer some well-known name from one species to another. For some of the conclusions reached by Dr. Verity in the light of his study of the Linnean material led— or, if generally adopted, would have led—to the most serious confusion. The fact that in a number of cases these conclusions have not been widely adopted in no way detracts from the threat to nomenclatorial stability represented by them. It has long been evident that the restoration of stability in the nomenclature of the species concerned can be secured only by action by the International Commission under its Plenary Powers. No doubt, applications for the use of the Plenary Powers in those cases would have been submitted to the Commission long ago, had it not been for the marked reluctance which unfortunately the Commission for long showed in the use of those Powers. The much more liberal policy adopted by the Commission at Lisbon in 1935 under pressure from the International Congress of Entomology which had just met at Madrid gives grounds for hoping that in future applica- tions of this type submitted by responsible specialists will receive more sympathetic treatment. 2. Few, if any, of the conclusions reached by Dr. Verity were cal- culated to cause greater nomenclatorial confusion than that in regard to the nominal species Papilio podalirius Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 463, nota). For the benefit of those zoologists who may be called upon to consider this case but who are not personally acquainted with the details, it may be explained that there are two species (as many specialists, including myself, consider)—or (as other specialists consider) two very strongly differentiated subspecies of a single species—of Swallow-Tail Butterfly belonging to the genus Iphiclides Hiibner [1819], found in the Western Palaearctic Region. These may be distinguished for the present purposes by their area of distribution which are substantially distinct : Species ““ A’, to which the trivial name podalirius Linnaeus has been almost universally applied for nearly two hundred years, which is widely distributed in Central and Southern Europe; Species (or subspecies) ““B”’, which occurs in North Africa and enters Europe in the Iberian Peninsula, which was originally described from Barcelona and which has been known consistently by the trivial name /feistamalii Duponchel, ever since that name was published in 1832. The need for action by the International Commission in the present case arises from the fact that Dr. Verity found only one Linnean specimen labelled podalirius and that specimen is referable not to species ‘‘A”’ (the species universally 336 OPINIONS AND DECLARATIONS known by the trivial name podalirius Linneus) but to species (or subspecies) “ B”’, i.e. the Spanish and North African insect habitually known by the trivial name feisthamelii Duponchel. Thus, if the Regles were to be strictly applied in the present case, it would be necessary (a) to transfer the name podalirius Linnaeus from the common Central and South European Species ” A ”’ to the Spanish and North African Species ““ B”’, a transfer which would give rise to great confusion, and (b) to apply some other name—actually, the name sinon Poda, 1761 (Papilio sinon Poda, 1761, Ins. Mus. graec. : 62, pl. 2, fig. 2)—to the Central and South European species, a change which would cause great inconvenience and at least initially considerable confusion. 3. I have long had in mind that at some stage a request must be made to the International Commission for action under the Plenary Powers to prevent the confusion inevitable under a strict application of the Rég/es in this case, but I felt that, before such an application was submitted, it would be helpful if the Linnean material were to be re-examined, so that the Commission, when considering the proposed application, might have before it an up-to-date appraisal of that material by way of supplement to that made by Dr. Verity some thirty years ago. When therefore early in the war I learnt that Dr. A. Steven Corbet (British Museum (Natural History)), in conjunction with his colleague Mr. W. H. T. Tams, was carrying out a fresh examination of the Linnean Lepidoptera, I asked Dr. Corbet to give special consideration to the problem represented by the name Papilio podalirius and, having done so, to furnish a statement of his conclusions which could form the basis of an application to the International Commission for remedial action. I was therefore very pleased when I received Dr. Corbet’s letter, with enclosure, of 18th March 1945, setting out the conclusions which he had reached. 4. I have since discussed this matter in some detail with Dr. Corbet, whose paper of this case was, it will be recalled, expressly marked as being a ‘“‘ draft’ and contained no concrete proposal for submission to the Commission. In that paper Dr. Corbet marshalled the available evidence and advanced the view that it might be possible to claim that Linnaeus described Papilio podalirius in 1758 only from previously published descriptions and without any actual specimens before him, and therefore, that the undoubted Linnean specimen of feisthamelii Duponchel preserved in his collection under the name podalirius may not have been received by Linnaeus until after the publication of the Tenth Edition of the Systema Naturae in 1758. While I agree that the method adopted by Linnaeus in describing this species—that is, the fact that he described it in a footnote instead of in the main text—lends some colour to the theory that in 1758 he was not personally acquainted either with Species “ A ” (the Central and Southern European species) or with Species ““B” (the Spanish and North African species), that theory is, I am convinced quite 2 Reproduced in the first paragraph of the present Opinion. _ OPINION 263 337 untenable. For, if (as this theory requires) Linnaeus in 1758 knew nothing of either species except what he could glean from the works of the three authors (Ray; Résel; Réaumur) whom he cited, all of whom were concerned only with European insects and only one of whom gave a locality for this species, it would be impossible to explain away the fact that, in addition to having in his collection an African specimen (belonging to Species “B’’), he stated in the original description of this species that the species occurred in Africa “* Habitat in Europae australis et Africae Brassica’’. The existence of the African specimen in the Linnean collection might be accounted for by claiming that that specimen was received by Linnaeus on some date subsequent to 1758, but it would be stretching credibility altogether too far, if in addition it were necessary to argue that the reference, in the original description, to Africa as part of the area in which this species occurs was no more than some extraordinary coincidence or an inexplicable piece of clairvoyance on the part of Linnaeus. I have put this view to Dr. Corbet who now agrees that his former theory can no longer be regarded as tenable and that it must be con- cluded that Linnaeus was acquainted with the African species (feisthamelii), of which very likely a specimen or specimens had been sent to Linnaeus by Erik Brander who was Swedish Consul at Algiers in the period 1753—1765, and who is known to have supplied Linnaeus at various times with specimens of North African butterflies. 5. In a case of this sort finality can be obtained only by the use by the International Commission of its Plenary Powers to direct that the name in question (in the present instance, the trivial name podalirius Linnaeus) shall be used in some particular way and in no other. It is necessary therefore to consider at this stage the precise form of the proposal which it is desirable should be submitted to the International Commission. It would, of course, be possible to select some modern figure or description which indubitably applies to Species “‘ A” (the common Central and South European species) and to ask the Commission under its Plenary Powers to direct that the figure or description so selected shall constitute the unique standard of reference for identifying the taxonomic species represented by the nominal species Papilio podalirius Linnaeus, 1758. In many cases such a course would be the most advantageous, in that it would eliminate all possibility of doubt as to the identity of the species to which it is desired to tie a given name. It happens, however, that an equally satisfactory result can be secured by selecting for the foregoing purpose one of the bibliographical references used by Linnaeus in 1758 as the basis for his nominal species Papilio podalirius. Neither the reference to Résel nor that to Réaumur would be satisfactory from this point of view, for, although there is no doubt that it was Species “A”’ (the common Central and South European species) with which those authors were dealing, the selection of either reference would give rise to fresh difficulties in the case of a polytypic species such as that with which we are here concerned, for the descriptions given by these authors are quite insufficient to provide a guide at the subspecies level and no 338 OPINIONS AND DECLARATIONS localities for this species were cited by either. The position is quite otherwise in the case of Ray, the first of the three authors cited by Linnaeus, for his description, coupled with the precise particulars which he gives as regards the locality in which his specimens were taken make the position at the subspecies level, as well as at the species level, absolutely clear. For of this species he wrote: “‘ Prope Liburnum, portum in Etruria invenimus, atque etiam, ni male memini, in Anglia ” The locality “‘ Anglia”’ is incorrect for this species and is ineligible for consideration in the present context in view of the fact that it was a locus inguirendum from the standpoint of Ray. Accordingly the selection of the reference given by Linnaeus to Ray to be the standard by which the nominal species Papilio podalirius is to be interpreted would not only fix the identity of the taxonomic species represented by Linnaeus’ nominal species beyond possibility of argument but would also in addition fix with equal precision the identity of the nominotypical subspecies of that nominal species, for that subspecies would automatically be that found in the neighbourhood of Livorno in Tuscany. 6. The foregoing is therefore the designation which I suggest the International Commission should be asked to make in this case. I have discussed this question both with Dr. Corbet and with Mr. N. D. Riley (Keeper, Department of Entomology, British Museum, London), each of whom is in agreement with the course suggested. Dr. Corbet has asked that his proposal to the International Commission a be interpreted in this sense. 3. Issue of Public Notices : On 14th November 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers for the purpose of determining the identity of the taxonomic species represented by the nominal species Papilio podalirius Linnaeus, 1758, was issued to the serial publications prescribed by the Ninth Inter- national Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection to the action proposed. Ill.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 4. One of the first matters connected with the wording of the Régles to be considered by the International Commission on Zoological Nomenclature at its Session held in Paris in 1948 was OPINION 263 339 the clarification and reform of Article 31, the Article concerned with the designation of holotypes and the selection of lectotypes (Paris Session, 4th Meeting, Conclusion 11) (1950, Bull. zool. Nomencl. 4 : 73—76). It was in the light of the conclusions so reached that the present application was considered by the International Commission at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis- Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission setting out the decision reached by it in this case at the foregoing meeting (Paris Session, 14th Meeting, Conclusion 27) (1950, Bull. zool. Nomencl. 4 : 497—499) :— THE COMMISSION agreed :— (1) to use their Plenary Powers to direct that the reference toe Ray ms. tir n. 3 (ee. Ray (s_), 1710) Hist, nists 111 n. 3) cited by Linnaeus, when in 1758 he first published the name Papilio podalirius was to be treated as representing the type specimen of that species and therefore that the trivial name podalirius Linnaeus, 1758 (as published in the binominal combination cited above) was to be applied to the species there described by Ray from specimens taken at Livorno in Tuscany (“ prope Liburnum, portum Etruriae ’’) ; (2) to place the undermentioned trivial names on the Official List of Specific Trivial Names in Zoology :— podalirius Linnaeus, 1758 (as published in the binominal combination Papilio podalirius), as defined in (1) above ; feisthameli! uponchel, 1832 (as published in the binominal combination Papilio feisthameli) (without prejudice to the prior rights of the trivial name t For an explanation of the use of a single terminal ‘“‘-i’’ for this name see paragraph 8 below. 340 OPINIONS AND DECLARATIONS podalirius Linnaeus, 1758, from the standpoint of specialists who regard these as the names of sub- species of a single collective species) ; (3) to render an Opinion recording the decisions specified in (1) and (2) above. 5. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 116). 6. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 7. The ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 8. It must be noted also that, in view of the fact that it was. decided by the Paris Congress in 1948 that infringements of the provision in the concluding portion of Article 14 of the Régles (which at that time required that, where a trivial name was based on the modern patronymic of a man, that name should be formed by the addition to that patronymic of the genitive termination OPINION 263 341 **-1”°) should be subject to automatic correction (1950, Bull. zool. Nomencl. 4 :67—68), the specific name /feisthamelii Duponchel, 1832, as published in the combination Papilio feisthamelii, was automatically corrected to feisthameli before being cited in the Conclusion reached by the Commission in Paris, quoted in paragraph 4 of the present Opinion. At its meeting held at Copenhagen in 1953 the Fourteenth International Congress of Zoology reviewed the decision taken by the Paris Congress in this matter and agreed to amend Article 14 in such a way as to provide that in cases such as that referred to above the terminations “-i” and “-ii” shall be permissible variants, the differences between them to have no nomenclatorial significance (1953, Copenhagen Decisions zool. Nomencl. : 54). Accordingly, in the Ruling given in the present Opinion the “ -ii”’ spelling for the specific name feisthamelii Duponchel, 1832, as published in the combination Papilio feisthamelii, has been restored. 9. The following are the original references for the names placed on the Official List of Specific Names in Zoology in the Ruling given in the present Opinion :— feisthamelii, Papilio, Duponchel, 1832, in Godart, Hist. nat. Lépid. France, Suppl. 1 (Diurnes) : 7, pl. 1, fig. 19 ““ Barcelone ” podalirius, Papilio, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 463, nota 10. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 342 OPINIONS AND DECLARATIONS 11. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 12. The present Opinion shall be known as Opinion Two Hundred and Sixty-Three (263) of the International Commission on Zoological Nomenclature. Done in London, this Twenty-Fifth day of December, Nineteen Hundred and Fifty-Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by MretcatFe & Cooper Iimirep 10-24 Scrutton St., London E C 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the Commission VOLUME 5. Part 25. Pp. 343-354 =i OPINION 264 SF Designation, under the Plenary Powers, of a figure to represent the lectotype of the nominal species Papilio iris Linnaeus, 1758 (Class Insecta, Order Lepidoptera) LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) _——— Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 264 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural Hace Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorRTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PeTERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. VOKES (United States Geological Survey, Washington, D.C., U.S.A.). ‘Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CaLMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). : Professor Kamel MANSOUR (King Fouad University, Cairo, Egypt). Professor Z. P. MercaLr (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RInEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Ma L. USINGER (University of California, Berkeley, California, U.S.A OPINION 264 DESIGNATION, UNDER THE PLENARY POWERS, OF A FIGURE TO REPRESENT THE LECTOTYPE OF THE NOMINAL SPECIES ‘PAPILIO IRIS ”’ LINNAEUS, 1758 (CLASS INSECTA, ORDER LEPIDOPTERA) RULING :—(1) Under the Plenary Powers, the illus- tration given as figure 1 on plate 29 of South (R.), 1906, The Butterflies of the British Isles is hereby designated to represent the lectotype of the nominal species Papilio iris Linnaeus, 1758, and the restricted locality of the nominate subspecies of the foregoing species is to be treated as being ““ England ” (=“* Anglia’”’ of Linnaeus, 1758). (2) A note of the foregoing determination of the above nominal species is to be inserted in the entry in the Official List of Specific Names in Zoology as Name No. 48 of the specific name iris Linnaeus, 1758, as published in the combination Papilio iris, made under the directions given in Opinion 232. (3) The specific name i/ia [Schiffermtller and Denis], 1775, as published in the combination Papilio ilia, is hereby placed on the foregoing Official List as Name No. 79. I.—THE STATEMENT OF THE CASE On 18th March 1945, Dr. A. Steven Corbet (British Museum (Natural History), London) submitted to the International Com- mission the following preliminary note foreshadowing an application for a ruling under the Plenary Powers that the trivial name iris Linnaeus, 1758, as published in the combination Papilio iris, should be held to apply to the “ Purple Emperor ” Butterfly which occurs in Europe, including England, and which is habitually known by the specific name iris Linnaeus, 1758, and not to the allied species which occurs in Continental Europe 346 OPINIONS AND DECLARATIONS but not in England and which is habitually known by the specific name ilia [Schiffermiiller and Denis], 1775! :— Request for the use of the Plenary Powers to secure the continued usage in its accustomed sense of the name ‘‘ iris ’’ Linnaeus, 1758, as published in the combination ‘‘ Papilio iris ”’ By A. STEVEN CORBET (British Museum (Natural History), London) Extract from a letter dated 18th March 1945 I enclose a draft of some notes on Papilio iris L., which contains all the relevant information, although I feel sure that it could be put together in a more logical form. Enclosure to Dr. A. Steven Corbet’s letter of 18th March 1945 Papilio iris ’’ Linnaeus, 1758 When the Linnean Collection was examined in detail by Mr. W. H. T. Tams and myself in 1941 we were impressed by the sound state of preservation of the specimens, by the absence of any evidence suggesting that label-changing had been carried out: by Sir James Edward Smith, who acquired the collection after Linnaeus’ death, and by the presence of almost all the types which were known to be in the collection originally. To my mind, there is no doubt that the Linnean names should be based on these specimens (to a large extent this is the position which obtains already), and should not rest on selections of ‘* types ’’ by later authors from among the figures and descriptions of previous authors cited by Linnaeus in his descriptions. At the same time, of course, it is necessary to ascertain that these specimens were actually in the Linnean Collection at the time that they were described. 2. In the description of Papilio iris in Systema Naturae, Edition 10, p. 476, Linnaeus cited references to four authors including two figures and gave a detailed description which may refer to Apatura iris auctt. or to A. ilia (Schiff.) ; ‘‘ Habitat in Quercu Germaniae, Angliae etc. P. Forskal ”’. 3. The Linnean Collection has two males labelled “iris”? and “110 iris’? in Linnean writing and both are A. i/ia: there is, in addition, a male of A. iris auctt. without label and (according to Verity) a female of A. ilia, also without a label but both believed to be Linnean. The species was marked in the Linnean copy of Edition 10 as being in the Linnean collection and one of the males labelled 1 Frequently, this name is incorrectly cited as having been first published in 1776, but in fact it first appeared in 1775. OPINION 264 347 ‘iris’ should be regarded as the type. Although the description of iris in Edition 10 does not differentiate between iris auctt. and ilia there is a note added to Linnaeus’ copy of Edition 10 which made it clear that he was describing A. ilia and not A. iris auctt. ‘‘ Primoras supra maculis albis sparsis in media & exterius [et ocello nigro inde ferrugineo] ”’. 4. In view of the confusion which must result from using the name iris in its correct sense, there is much to be said for the Commission fixing the name “iris” to A. iris auctt. with an arbitrarily selected type locality or designating the specimen of iris auctt. in the Linnean Collection as the type. I have no idea as to the provenance of this particular specimen. Ii—THE SUBSEQUENT HISTORY OF THE CASE 2. On the receipt of Dr. Corbet’s letter, the problem dealt with in the present Opinion was given the Registered Number Z.N.(S.) 184. As soon as practicable thereafter, discussions were started with Dr. Corbet, by Mr. Francis Hemming, Secretary to the Commission, who, as a lepidopterist, was already familiar with the problem involved, the object of these discussions being to settle the precise nature of the request to be submitted to the International Commission and, generally, to finalise Dr. Corbet’s application which, as will have been noted (paragraph 1), was submitted only in draft form. These discussions were concluded in the summer of 1945, and on 23rd June of that year, the outcome was formally placed on record by Mr. Hemming in the following paper which was then placed in the Commission’s File Z.N.(S.) 184 :— Proposed use of the Plenary Powers to designate the species to be accepted as that represented by the nominal species ‘‘ Papilio iris ’’ Linnaeus, 1758 By FRANCIS HEMMING (London) The purpose of the present note is to examine the question of the application of the name Papilio iris Linnaeus, 1758 (Syst. Nat. (ed. 10) 1 : 476) and to put forward a proposal for the use by the International Commission of its Plenary Powers for the purpose of securing that this name shall be available for use in its universally accepted sense. 348 OPINIONS AND DECLARATIONS 2. The present case is similar in its main outlines to that of the name Papilio podalirius Linnaeus, 1758, which has already been submitted to the International Commission by Dr. A. Steven Corbet and myself, in the sense that an examination of the material preserved in the Linnean collection at Burlington House carried out by Dr. Roger Verity in 1912—1913 showed that this name was correctly applicable not to the species to which it is habitually applied but to an allied species which has always been known by a different name (Verity, 1913, J. linn. Soc. Lond. (Zool.) 32 : 180—181). Before examining the present case, it may be convenient to set out the issue in simple terms for the convenience of those zoologists who may be called upon to consider this matter but who are not personnally acquainted with the two species involved. Briefly, the point to be noted is that in the West Palaearctic Region there are two widely distributed species of the genus Apatura Fabricius, 1807, which for the present purpose may be distinguished as Species “‘ A’ and Species ““B’’. These species may be separated as follows :— (1) Species ““ A”: This species is most readily recognised by the presence on the upper side at the inner angle of the forewing of a black spot which, by reason of its being surrounded by the dark ground colour, is often barely visible. This species is widely distributed in Western, Central and Southern Europe. It occurs in England but does not extend as far north as Scandinavia. It is doubtful how far east it occurs ; the insect occurring in West China which was formerly regarded as a subspecies of Species “‘ A ”’ is now known to be structurally distinct. This species is known in England as the “Purple Emperor ”’. (2) Species SB: This species can at.once be distinguished from Species “‘ A”’ by the fact that the black spot at the inner angle of the forewing on the upperside is always surrounded by a circle of tawny scales. Moreover, unlike Species “A”, Species ““B” commonly exhibits marked dimorphism, there are frequently occurring speci- mens in which the white bands on the upperside are replaced by bands of a yellowish colour. In Western Europe this species has a distribution not unlike that of Species “A’’, but it does not extend as far north and is not found in England. It extends, however, much further to the East. 3. Species ‘‘ A’ is habitually known as Apatura iris (Linnaeus, 1758), being identified with Papilio iris Linnaeus, 1758. Species “* B” is habitually known as Apatura ilia [Schiffermiiller and Denis], 1775, being identified with Papilio ilia ({Schiffermiiller and Denis], 1775) (Ankiindung syst. Werk. Schmett. wien. Gegend : 172, no. G.2). OPINION 264 349 4. The description given by Linnaeus (1758 : 476) for his Papilio iris might apply to either Species ““ A” or to Species ““B”’. Three of the four bibliographical references cited by Linnaeus are all to Species “A”. The fourth (that to Richter) is indeterminate. The locality cited by Linnaeus (“ Habitat in Quercu Germaniae, Angliae etc.”) certainly applies to Species ““ A” (by reason of the reference to “ Anglia’) and may also apply to Species ““B’’. Judged by the foregoing criteria, it would be reasonable to conclude (1) that the nominal species Papilio iris Linnaeus was certainly based upon Species “A” but (2) that, owing to the vagueness of the description and of one of the references cited, Linnaeus might also have had before him specimens of, or may have been referring to, Species ‘“‘B’”’ when establishing this nominal species but that there is no clear evidence that he did so. On this basis it would be reasonable to conclude that the current universal identification of Papilio iris Linnaeus with Species “A” (The Purple Emperor of England) was correct and to treat any elements of Species ““B’”’ which may have been included by Linnaeus in this nominal species as having been removed therefrom by Schiffermiiller and Denis, the first authors to recognise the dis- tinction between Species “‘ A ”’ and Species “ B ’’, when in 1775 they gave the name Papilio ilia to Species “‘ B”’, thus leaving Species “ A ” in undisputed possession of the name Papilio iris Linnaeus. 5. Unfortunately, there are two pieces of evidence which clearly show that such a conclusion would be incorrect. These are: (1) In his own interleaved copy of the Tenth Edition of the Syst. Nat. (now preserved at Burlington House) Linnaeus, as noted by Verity (1913 : 180—181), added at the end of the entry for Papilio iris the words “et ocello nigro inde ferrugineo’’, thus unmistakably identifying Papilio iris with Species ““B”. (2) The examination of the Linnean collection at Burlington House, first by Verity (1913 : 180) and again, recently, by Dr. Corbet shows conclusively that the Linnean syntypes of Papilio iris belong to Species ‘‘ B’’ and not to Species ““ A ”’. 6. Every lepidopterist will agree that the utmost confusion would arise if it were necessary to transfer the trivial name iris Linnaeus from Species “A ’’, the species to which this name has been con- sistently applied for one hundred and eighty-seven years (i.e. ever since 1758), to the closely allied Species ‘‘ B”’, which ever since 1775 has been known by the trivial name ilia [Schiffermiiller and Denis]. This is a clear case of a transfer of the kind expressly mentioned by the Ninth International Congress of Zoology, Monaco, 1913, as being a peculiarly suitable subject for the use by the International Com- mission of the Plenary Powers granted to it by that Congress. 7. It remains to consider the form which action by the Inter- national Commission under its Plenary Powers might most suitably take in the present case. First, it will, I think, be generally agreed that ease of recognition will be promoted if the Commission, in giving directions as to how the nominal species Papilio iris Linnaeus, 1758, 350 OPINIONS AND DECLARATIONS is to be interpreted, were to secure that the standard specimen or figure to be used for identifying this species should be a specimen, or a figure of a specimen, obtained in England, for of the two localities cited by Linnaeus for his Papilio iris this could only refer to Species “A ”’, since Species “‘ B ”’ does not occur in Great Britain. If we were concerned with a highly plastic species, it would probably be well to define the type locality of this species with greater precision than “England ’’. In that event it might, other things being equal, be convenient to select either the locality given by Ray or that given by Wilkes in the passages cited by Linnaeus, when describing Papilio iris, both of which are quite precise. Ray said of this species: “ Julio mense capta est circa Heveningham Castle in Essexia Anno 1695 A.D. Courtman’”’ ; Wilkes wrote: “... may be taken in Comb-Wood in Surrey, about Westram [sic] in Kent and in other places”. Neither of these localities would, however, prove a very convenient selection at. the present date, for the species has long been extinct both in Essex and in Kent. In the circumstances, it seems to me that the broader indication given by the word “‘ England ”’ will be quite sufficient. 8. It will certainly be desirable that, when prescribing the manner in which this nominal species should be interpreted, the International Commission should cite a good modern coloured figure, preferably one published in some inexpensive and easily accessible book. I suggest for consideration that the excellent figure of a male specimen given as figure 1 on plate 29 of Richard South’s well-known little book entitled The Butterflies of the British Isles published in 1906 would be very suitable for this purpose. 9. I accordingly suggest for consideration that the International Commission should use its Plenary Powers to direct that the trivial name iris Linnaeus, 1758, as published in the combination Papilio iris, shall be held to apply to the species represented by the specimen as figured in the work cited in the immediately preceding paragraph and that the type locality of the nominotypical subspecies of this species shall be held to be “‘ England ”’ (= “‘ Anglia’ of Linnaeus, 1758). 3. Support received from Mr. N. D. Riley (British Museum (National History), London) : On 23rd June 1945, Mr. N. D. Riley (Keeper, Department of Entomology, British Museum (Natural History), London), with whom Mr. Hemming had been in correspondence when preparing the paper reproduced in the immediately preceding paragraph of the present Opinion, stated that he was in full agreement with the application submitted in the present case, adding that, in his view, any other course would inevitably lead to the most serious confusion. 4. Issue of Public Notices : On 14th November 1947 a notice of the possible use by the International Commission on OPINION 264 351 Zoological Nomenclature of its Plenary Powers for the purpose of determining the identity of the taxonomic species represented by the nominal species Papilio iris Linnaeus, 1758, was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection to the action proposed. I1l—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. One of the first matters connected with the wording of the Régles to be considered by the International Commission on Zoological Nomenclature at its Session held in Paris in 1948 was the clarification and reform of Article 31, the Article concerned with the designation of holotypes and the selection of lectotypes (Paris Session, 4th Meeting, Conclusion 11) (1950, Bull. zool. Nomencl. 4 : 73—76)*. It was in the light of the conclusions so reached that the present application was considered by the International Commission at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis- Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, setting out the decision reached by it in this case at the foregoing meeting (Paris Session, 14th Meeting, Conclusion 39) (1950, Bull. zool. Nomencl. 4 : 540—542) :— THE COMMISSION agreed :— (1) to use their Plenary Powers to direct that the trivial name iris Linnaeus, 1758, as published in the binominal combination Papilio iris, should be applied to the species figured as Apatura iris by South (R.), 1906, The Butterflies of the British Isles as figure 1 on plate 29 and that the type locality of this species, i.e. the type 2 Article 31 was further amended by the Fourteenth International Congress of Zoology, Copenhagen, 1953, but the changes then made do not affect the decision taken in the present case. See 1953, Copenhagen Decisions zool. Nomencl. : 72—78. 352 OPINIONS AND DECLARATIONS locality of the nominotypical subspecies of this species, should be deemed to be “ England” (“‘ Anglia” of Linnaeus, 1758) ; (2) that the foregoing definition of the meaning to be applied to the trivial name iris Linnaeus, 1758, should be entered against that trivial name, when, in accordance with the decision recorded in Conclusion 16 (6) of the present meeting that name was inscribed on the Official List of Specific Trivial Names in Zoology ; (3) to place the trivial name i/ia [Schiffermiller and Denis], 1775, as published in the binominal combination Papilio ilia, on the Official List of Specific Trivial Names in Zoology ; (4) to render an Opinion recording the decisions specified in (1) to (3) above. 6. It should be noted that the only reason why the specific name iris Linnaeus, 1758, as published in the combination Papilio iris, dealt with in the decision set out in the immediately preceding paragraph was not, in that decision, placed on the Official List of Specific Names in Zoology was that this name had already been placed on that List under a decision which has since been embodied in Opinion 232. 7. The following are the original references and localities for the names placed on the Official List of Specific Names in Zoology in the Ruling given in the present Opinion :— ilia, Papilio, {(Schiffermuller and Denis], 1775, Ankiindung syst. Werk Schmett. wien. Gegend : 172, no. G.2. ““ Wiener Gegend ” iris, Papilio, Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 476 “‘ England ” (by designation in the present Opinion) 8. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 117). OPINION 264 353 9. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 10. The ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 11. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ”’ and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name ” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953), Copenhagen Decisions zool. Nomencl.: 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 12. It must be noted also that at the time when the Ruling given in the present Opinion was adopted by the International Commission, the expression prescribed to denote, in the case of polytypic species, the subspecies upon which the nominal species concerned was originally based was the expression “ nomino- typical subspecies ’’ (Paris Session, 7th Meeting, Conclusion 2) (1950, Bull. zool. Nomencl. 4 : 191), but that at its meeting held at Copenhagen in 1953 the Fourteenth International Congress of Zoology decided to substitute for the foregoing expression the 354 OPINIONS AND DECLARATIONS expression “ nominate subspecies ” (1953, Copenhagen Decisions zool. Nomencl. : 21). The change in terminology so adopted has been incorporated in the Ruling given in the present Opinion. 13. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 14. The present Opinion shall be known as Opinion Two Hundred and Sixty-Four (264) of the International Commission on Zoological Nomenclature. Done in London, this Fourth day of January; Nineteen Hundred and Fifty-Four. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING SAS RONAN IES AB OS tg RR Printed in England by Metcatre & Cooper Limitep 10-24 Scrutton St. Londen EC2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, cmc, cae. _ | Secretary to the Commission is &: rs ; | VOLUME 5. Part 26. Pp. 355-366 \\= [fj SJ OPINION 265 Validation, under the Plenary Powers, of the specific names aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae and ascanius Cramer [1775], as published in the combination Papilio ascanius (Class Insecta, Order Lepidoptera) LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 265 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDA™m (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. Vokes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JoRGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirspy (University of California, Berkeley, California, U.S.A.). Dr. Henning LemcHeE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsSouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RiLey (British Museum (Natural History), London, England). Professor Ragnar SpARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). : Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). ge aes L. UsINGER (University of California, Berkeley, California, OPINION 265 VALIDATION, UNDER THE PLENARY POWERS, OF THE SPECIFIC NAMES “ ARISTOLOCHIAE ” FABRICIUS, 1775, AS PUBLISHED IN THE COMBINATION ‘PAPILIO ARISTOLOCHIAE” AND “© ASCANIUS ” CRAMER [1775], AS PUBLISHED IN THE COMBINA- TION “ PAPILIO ASCANIUS ” (CLASS INSECTA, ORDER LEPIDOPTERA) RULING :—(1) Under the Plenary Powers, the under- mentioned specific names (Class Insecta, Order Lepidop- tera) are hereby suppressed for the purposes both of the Law of Priority and of the Law of Homonymy :—(a) the name ascanius Linnaeus, 1768, as published in the com- bination Papilio ascanius ; (b) the name aristolochiae Pallas, as used by that author in the combination Papilio. aristolochiae on any date prior to the publication in 1775 of the name aristolochiae Fabricius in the same combina- tion. (2) The specific names suppressed under the Plenary Powers in (1) above are hereby placed on the Official Index of Rejected and Invalid Specific Names in Zoology as Names Nos. 21 and 22. (3) The undermentioned specific names are hereby placed on the Official List of Specific Names in Zoology as Names Nos. 80 and 81 :—(a) the name ascanius Cramer [1775] as published in the combination Papilio ascanius ; (b) the name aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae. I—THE STATEMENT OF THE CASE In the early part of the year 1945 Dr. A. Steven Corbet (British Museum (Natural History), London) recalled to Mr. Francis Hemming, Secretary to the International Commission, that in 1941 he had published a suggestion (Corbet, 1941, Proc. R. ent. Soc. Lond. (B) 10 : 27) that an application should be submitted to the International Commission asking for the use of the Plenary 358 OPINIONS AND DECLARATIONS Powers to suppress the specific name ascanius Linnaeus, 1768, as published in the combination Papilio ascanius, a long-overlooked name recently brought to light by Dr. Corbet’s survey of the writings of Linnaeus which, if re-introduced, would lead to the sinking in synonymy of the name aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae, and to the rejection, as a junior homonym, of the name ascanius Cramer, 1775, as published in the combination Papilio ascanius. Dr. Corbet took the view that both these results would be highly objectionable, especially the former, having regard to the fact that either in its Latin form or in some vernacular form the name aristolochiae had been widely used to denote an important section of the genus Papilio Linnaeus, 1758, sensu lat., a usage which would quickly become unintelligible if the name aristolochiae Fabricius were to be discarded as a junior (subjective) synonym. Dr. Corbet added that, now that the Commission was in a position to deal with new applications, he proposed formally to submit this case. In informing Dr. Corbet of his support for the sub- mission to the International Commission of an application on the foregoing lines, Mr. Hemming added that, as lepidopterist, he hoped that Dr. Corbet would widen his application somewhat, in order to include a proposal that the Commission should suppress a usage of the name aristolochiae in the combination Papilio aristolochiae which it was known had been made by Pallas on some date prior to 1780 in a work which it had been impossible to trace; a lengthy description by Pallas of his Papilio aristolochiae had been quoted by Esper in 1780 and it might well be that that name had been published by Pallas before the appearance in print of the name Papilio aristolochiae Fabricius, 1775, the name which it was Dr. Corbet’s principal object to preserve. Mr. Hemming therefore suggested that he should include in his application to the Commission a request that the name aristolochiae as used by Pallas in the combination Papilio aristolochiae on some date prior to 1780 should be suppressed under the Plenary Powers. Dr. Corbet agreed to expand his application in this way, and on 26th March 1945 he submitted the following letter enclosing the draft of his projected application to the Commission. Dr. Corbet had not supplied the substantive application at the time of his premature death, and accordingly the document furnished by him in 1945 was adopted by the Commission as constituting the “Statement of the Case” in OPINION 265 359 relation to the names discussed above. Dr. Corbet’s letter and enclosure were as follows :— Proposed use of the Plenary Powers to validate the names ‘‘ Papilio aristolochiae ’’ Fabricius, 1775, and ‘‘ Papilio ascanius ”’ Cramer [1775] (a) Letter, dated 26th March 1945 from Dr. A. Steven Corbet to Mr. Francis Hemming Enclosed is a draft of my proposed application to the International Commission on Zoological Nomenclature for suspension of the Rules in order to invalidate the names Papilio ascanius Linnaeus, 1768, and Papilio aristolochiae Pallas. (b) Enclosure to Dr. A. Steven Corbet’s letter of 26th March 1945 1. Papilio ascanius Linnaeus, 1768 Papilio ascanius (Eques) Linnaeus, 1768, Iter in Chinam : 7, 8 (note d; Hab. in Insula Nieuw Bay -[Java]. This name was applied by Linnaeus to a butterfly taken by Anders Sparrman in Java during his voyage to China in 1765. The insect remained unidentified until recently when the opinion was expressed (Corbet, 1941, Proc. R. ent. Soc. Lond. (B) 10 : 25) that the name applies to the form antiphus Fabricius of Atrophaneura aristolochiae (Fabricius). The Sumatran race of the species is of this form, which also occurs occasionally in west Java, according to material in the British Museum. 2. Papilio aristolochiae Fabricius, 1775 Papilio aristolochiae Fabricius, 1775, Syst. Ent. : 443; “‘Hab. in Aristolochiis Indiae Orientalis’’. It is generally considered that Fabricius’s name was based on an Indian example of the common and widely distributed species of Atrophaneura to which it is currently applied. The name of aristolo- chiae, however, was not consistently applied to this species for, in the first half of the last century, it was incorrectly known as P. polydorus and later it passed under the name of P. diphilus Esper, which is now regarded as a synonym of aristolochiae. Butler re-established the Fabrician name for the species in 1869 and this name has been univer- sally used for the collective species ever since. 3. Papilio ascanius Cramer [1775] Papilio ascanius Cramer, 1775, Ujitlandsche Kapellen, 1 : 20, pl. xiv, fig. A; Brazil, Rio de Janeiro. Although Cramer made no mention of the Linnean name ascanius there can be little doubt that he was aware of it, for the South American species to which he allotted the name bears a superficial resemblance to the Oriental species described as P. ascanius by Linnaeus and as P. aristolochiae by Fabricius. Cramer’s species, which is now known 360 OPINIONS AND DECLARATIONS as Battus ascanius ({Cramer]), appears to be confined to the neighbour- hood of Rio de Janeiro and has been known by no other trivial name than that which Cramer applied to it. 4. Papilio aristolochiae Esper [1780]. Papilio aristolochiae Esper [1780], Die Schmetterlinge, 1 (Bd. 2) (Forts. Tag- schmett.) : 19 ; Stidlich Russland. In his description of Zerynthia rumina (Esper nec Linnaeus), for which the oldest valid name appears to be Z. hypermnestra Scopoli, 1763, Esper commented on the appropriateness of Pallas’s name Papilio aristolochiae for the species, since the larva feeds on Aristolo- chia. From Esper’s remarks, it might appear that Pallas had previously published this name, but a search through his Reise Prov. Russ. Reichs. has not revealed any clue. For the present, therefore, the name must be attributed to Esper. The name aristolochiae has not been employed consistently for any of the Zerynthia species and it would be unfortunate if it had to be brought into use following the discovery of its publication by Pallas before 1775. 5. A strict application of the laws of priority to these two pairs of homonyms would necessitate the following changes in nomen- clature. (i) Atrophaneura ascanius (Linnaeus, 1758) would replace Aztro- phaneura aristolochiae (Fabricius, 1775) as the oldest valid name for the widely distributed oriental species at present known under the latter name. (ii) A new name would be required for the South American species of Battus which has been known under the trivial name of ascanius [Cramer], 1775, for over a century and a half. (iii) If a name Papilio aristolochiae Pallas came to light with a date of publication prior to 1775 it would invalidate the Fabrician name and this latter name would not be available for use even as a sub- specific name. If Pallas’s name appeared before 1763, it would invalidate Scopoli’s name of hypermnestra for the Zerynthia species. 6. It must be conceded that a strict application of the law of priority would have a most unfortunate effect on the nomenclature of two, or possibly three, well-known species of PAPILIONIDAE. The trans- ference of the name ascanius from the South American species of Battus to the common Oriental species of Atrophaneura which is widely known as aristolochiae would upset the nomenclature of two important species which have been known by these names for a long time and of which the latter species has an extensive literature. The resuscitation of Pallas’s name aristolochiae (if such were found), for the Zerynthia species now known as hypermnestra Scopoli would not only lead to confusion in the literature of this species but would involve changing the name of the Oriental Atrophaneura species, OPINION 265 361 assuming that this had not been done in consequence of the identifica- tion of the Linnean name ascanius. In my opinion, these devastating changes in nomenclature resulting from the identification of Linnaeus’s ascanius and the discovery that Pallas used the name aristolochiae for a species of Zerynthia are not only unwarranted but may well have the effect of bringing zoological nomenclature to ridicule; certainly they would create “ greater confusion than uniformity”’. 7. I, accordingly, on the basis of the evidence submitted, apply to the International Commission of Zoological Nomenclature : (1) To suspend the rules in the case of Papilio ascanius Linnaeus, 1768, and to reject the name permanently. (2) To suspend the rules in the case of Papilio aristolochiae Pallas, if this name should subsequently be found in the literature, and to reject the name permanently. Il.—HISTORY OF THE PRESENT CASE PRIOR TO THE RECEIPT OF DR. CORBET’S APPLICATION 2. As has already been explained, one aspect of the proposal submitted by Dr. Corbet had been considered by Mr. Hemming, as a lepidopterist, before the outbreak of war in 1939. The following is a note on this subject prepared by Mr. Hemming on 28th July 1936, shortly before he was elected Secretary to the International Commission :— The problem created by the use of the name ‘‘ Papilio aristolochiae ”’ by Pallas on some date prior to 1780 for the Zerynthiid species formerly generally known as ‘‘ Thais polyxena ”’ [Schiffermiiller & Denis], 1775 By FRANCIS HEMMING (London) The common South European Zerynthiid species formerly known as Thais polyxena ({Schiffermiller & Denis], 1775), and now referred to the genus Zerynthia Ochsenheimer, 1816, presents a nomenclatorial tangle which at present is quite insoluble. 2. This species was universally known as Thais polyxena ([{Schiffer- muller & Denis], 1775) (Ankiindung syst. Werk. Schmett. wien. Gegend : 162, no. C.1) until about 1908, although it was usually dated “* 1776” and attributed to the version of the same authors’ work published in the latter year in an edition differing from that of 1775 only in its title (Verzeichniss der Schmetterlinge der Wiener Gegend). 362 OPINIONS AND DECLARATIONS 3. In 1908, however, Verity proposed (1908, Rhop. pal. : 31) the re-introduction for this species of the trivial name hAypermnestra Scopoli, 1763 (Papilio hypermnestra Scopoli, 1763, Ent. carn. : 149) and this suggestion won a fair measure of acceptance. This usage was, however, incorrect, for the name Papilio hypermnestra Scopoli, 1763, was an invalid junior homonym of an identical name published for an entirely different species somewhat earlier in the same year, namely Papilio hypermnestra Linnaeus, 1763 (Amoen. acad. 6 : 407). As soon as it was realised that the name hypermnestra Scopoli was not available, a fresh hunt was made for a name for this species. The name next brought forward was hypsipyle Fabricius, 1777 (Papilio hypsipyle Fabricius, 1777, Gen. Ins. : 265). In 1934 (Stylops 3 : 196), I accepted this name, but pointed out that it had been published by Schulze a year before it was published by Fabricius, and therefore that it should be known as Zerynthia hypsipyle (Schulze, 1776) (Papilio hypsipyle Schulze, 1776, Naturforscher 9 : 221 et nota). The nominal species so established by Schulze is objectively identical with the nominal species Papilio hypermnestra Scopoli, 1763, Schulze having stated that his new name was a nom. nov. for Scopoli’s hypermnestra. 4. In the course of the survey of the old literature on which I am at present engaged for the purpose of detecting all the names published for the Palaearctic butterflies—and, so far as possible, securing the suppression, by the International Commission on Zoological Nomen- clature, of any of these old names, the resurrection of which would give rise to serious confusion—I have come across a hitherto unsus- pected difficulty in connection with the name to be used for the present species. For I find that in Band 2 of the first Theil of the Fortsetzung der europdischer Schmetterlinge Esper, when discussing the present species under the name P. N. Ph. Rumina (the use of this name being a mis- identification of the entirely different species Papilio rumina Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 480), quotes a long description of what is undoubtedly this species written by Pallas under the name Papilio aristolochiae. The specimens on which Pallas’s description was based were obtained from Southern Russia. Esper gave no reference from which to trace this long and important quotation from Pallas. The only contemporary author who appears to have noted the name Papilio aristolochiae Pallas was Borkhausen (1788, Naturgesch. eur. Schmett. 1 : 23, 113 ; 1789, ibid. 2 : 212), but he also gave no biblio- graphical reference to the passage in Pallas concerned, his knowledge of this name being evidently mainly, if not entirely, derivative from the passage in Esper referred to above. It is possible that the long passage—extending to over one full page of Esper’s work—may be no more than a transcript from a lengthy communication received by Esper from Pallas, but the description is so detailed that this is most improbable. In view of the locality in which were obtained the specimens on which Pallas stated that he based the description of his Papilio aristolochiae, it is much more likely that the passage in question appeared somewhere in the massive volumes of Pallas’s Reise durch verschiedene Provinzen des Provinzen des Russischen OPINION 265 363 Reichs. published in the period 1771—1776. Both Dr. C. D. Sherborn and myself have spent long hours in searching the three volumes of the foregoing work, but we have entirely failed to find any usage therein of the name Papilio aristolochiae Pallas. 5. The situation disclosed above is extraordinarily unsatisfactory, not only because it leaves completely in doubt what is the oldest available name for the Zerynthiid here under consideration, but also—and, viewed from a more general standpoint, particularly— because of the possibility that Pallas may have published for this species a name consisting of the combination Papilio aristolochiae prior to the publication of the name Papilio aristolochiae Fabricius, 1775 (Syst. Ent. : 443). The disappearance, as a junior homonym, of the latter name would be a most serious matter, having regard to the fact that either in its Latin form or some vernacular adaptation that name has given its currently adopted title to one of the most characteristic Sections of the genus Papilio Linnaeus, 1758, as broadly conceived, and has become the centre around which a large literature has accumulated. 6. In view of the considerations set out above, it is essential from the point of view of the nomenclature of the West Palaearctic butterflies that an end should be put to the present irremediable uncertainty as to the name to be applied to the Zerynthiid formerly known as Thais polyxena ([Schiffermitller & Denis], 1775), by the suppression, by the International Commission, under its Plenary Powers, of the mystery name—perhaps no more than a cheironym—aristolochiae as used by Pallas in the combination Papilio aristolochiae. The same action is absolutely essential also in order to prevent the most serious confusion in the nomenclature of the largest single group—the genus Papilio Linnaeus, 1758, as formerly understood—in the family PAPILIONIDAE. IIl—THE SUBSEQUENT HISTORY OF THE CASE 3. On receipt of Dr. Corbet’s letter of 26th March 1945, the problem dealt with in the present Opinion was given the Regis- tered Number Z.N.(S.) 186. Mr. Hemming thereupon consulted Mr. N. D. Riley (Keeper, Department of Entomology, British Museum (Natural History), London), with whom before the war he had discussed the aspect of this case raised by the discovery of the existence of the name Papilio aristolochiae Pallas. On 15th May 1945 Mr. Riley informed Mr. Hemming that he was in agreement with the action proposed by Dr. Corbet; Mr. Riley added that great confusion would result if the name aristolochiae Fabricius, 1775, had to be discarded for the species of Papilio to which it was universally applied. 364 OPINIONS AND DECLARATIONS 4. Issue of Public Notices: On 14th November 1947 a notice of the possible use by the International Commission on Zoological Nomenclature of its Plenary Powers for the purpose of validating the specific name aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae, was sent to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. The publication of this notice elicited no objection to the action proposed. IV.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 5. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- theatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Pro- ceedings of the International Commission, setting out the decision taken by it in the present case at the foregoing meeting (Paris Session, 14th Meeting, Conclusion 40) (1950, Bull. zool. Nomencl. 4 : 542—545) :— THE COMMISSION agreed :— (1) to use their Plenary Powers :— (a) to suppress the trivial name ascanius Linnaeus, 1768, as published in us binominal combination Papilio ascanius ; (b) in so far as such use might be necessary, to suppress the trivial name aristolochiae Pallas, as published in the binominal combination Papilio aristolo- chiae, prior to the publication by Esper in [1780] of an extract, containing this name, from some work by Pallas ; OPINION 265 365 (c) to validate the under-mentioned trivial names :— aristolochiae Fabricius, 1775, as published in the binominal combination Papilio aristolochiae, ascanius Cramer [1775], as published in the binominal combination Papilio ascanius ; (2) to place on the Official Index of Rejected and Invalid Specific Trivial Names in Zoology the trivial names specified in (1)(a) and (1)(b) above ; (3) to place on the Official List of Specific Trivial Names in Zoology the trivial names specified in (1)(c) above ; (4) to render an Opinion recording the decisions specified in (1) to (3) above. 6. The following are the original references for the names which appear in the decision set out in the immediately preceding paragraph :— aristolochiae, Papilio, Fabricius, 1775, Syst. Ent. : 443 ascanius, Papilio, Linnaeus, 1768, Dissert. acad. sistens in Iter in Chinam : 7, 8 (nota d) ascanius, Papilio, Cramer, 1775, Uitl. Kapellen 1 (2) : 20, pl. 14, fig. A 7. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 118). 8. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma: Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge wee do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters ; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 366 OPINIONS AND DECLARATIONS 9. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 10. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial’? appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 11. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 12. The present Opinion shall be known as Opinion Two Hundred and Sixty-Five (265) of the International Comms on Zoological Nomenclature. Done in London, this Fifth day of January, Nineteen Hundred and Fifty-Four. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by Mretcatre & Cooper LimirepD, 10-24 Scrutton St., London EC 2 OPINIONS AND DECLARATIONS RENDERED BY THE INTER. NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c._.G., C.B.E. —— Secretary to the Commission W a

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TODCXOAT Bh PASPSAS , TORRKO JH vWepess Gorbe WIN MEBSA MpOAORMMTeSbHO™ Bpema, Bb Tevenie Koroparo OW ACTKO MOTyTh CAyMHTE BCTOURHKOME SAPAMeHIN AAA OKPYMAWUAIE H Gite COBep MeHHO BXOPOBNXh AOWMaxeh, octapxewie Me HXb Jan Gorbe TOwHarO Hecabgosauia OaxTepios0r HYeCKUME My cb CONpA- Keno Ch MoTepell BHAVATCIBHAIM BPEeMeRM, & CTBAOBATEIEH? 1 Facsimile of the concluding portion of the paper by Dschunkowsky & Luhs on ‘¢ Piroplasmosis of Cattle ’’ published in 1903 in Vestnik obsch. vet., St. Petersb., vol. 15, Columns 771—772. OPINION 266 307 12. On 13th April 1948 Miss I. M. Bellis, on behalf of Dr. Wenyon, forwarded the following extract from a letter dated 12th June 1947 addressed to Dr. C. A. Hoare (The Wellcome Foundation) by Professor E. N. Pavlovsky (see paragraph 8 above) :— With regard to Dschunkowski, I have copied everything that was published. As to whether the new name (Piroplasma annulatum) was given according to the rules—it was not. They [Dschunkowski & Luhs] simply named it and that is all. I think that he [Dchunkowsky] was in Yugoslavia. IIl—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 13. The present application was considered by the International Commission on Zoological Nomenclature at the Fourteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard on Monday, 26th July 1948 at 2030 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, setting out the decision which, subject to the condition specified in Point (6) of the Official Record (quoted below), the Commission reached in regard to this case at the meeting referred to above (Paris Session, 14th Meeting, Conclusion 5) (1950, Bull. zool. Nomencl. 4 : 431— 433) :— THE COMMISSION agreed :— (1) that, pending the outcome of the further investigation referred to in (5) below, the name Piroplasma annulatum (Class Sporozoa, Order Coccidiida) should, on the information at present available, be treated as having been first published in 1906 in the Report of the VIIIth International Veterinary Congress, Budapest, 1905 : 290, where it appeared in a paper by Dschunkowsky & Luhs 378 OPINIONS AND DECLARATIONS communicated to the Congress by M. G. Tartarowsky, and that this name should therefore be attributed to Dschunkowsky & Luhs, [1906] ; (2) that Dr. E. Sergent was in error when in 1923 he rejected the trivial name annulatum Dschunkowsky & Luhs on the ground that, when that name had been first published, it had been applied to a composite species (the one pathogenic, the other non-pathogenic), for under the Rég/es a trivial name cannot be rejected on this ground, it being necessary to determine the species to which the name should be applied by the means provided by Article 31 ; (3) that Dr. Witenberg himself in his application to the Commission (1947) applied the provisions of Article 31 to the trivial name annulatum Dschunkowsky & Luhs, 1905, when he selected as the species to which that name should apply the pathogenic (as contrasted with the non-pathogenic) species included by Dschunkowsky & Luhs in the nominal species Piroplasma annulatum when they first published the name of that composite species, and therefore that the trivial names parva and dispar, as published by Sergent (1923) (in combination with the generic name Theileria) were objective synonyms of the trivial name annulatum Dschunkowsky & Luhs (as published in 1906 in combination with the generic name Piroplasma) ; (4) to place on record their thanks to Dr. C. M. Wenyon (Wellcome Foundation, London) and Mr. D. A. E. Cabot, Chief Veterinary Officer, United Kingdom Ministry of Agriculture and Fisheries, for their assidu- ous efforts to assist in the investigation of the complex bibliographical problems involved in this case ; (5) to invite the Secretary of the Commission to examine, in consultation with specialists, the question whether there was any prospect of obtaining more precise information regarding the date on which, and the place in which, the name Piroplasma annulatum was first published ; (6) to render an Opinion recording the decisions specified in (1) to (3) above, as soon as the Secretary had either OPINION 266 379 brought to a successful issue the inquiry referred to in (5) above or was satisfied that no further information regarding the date and place of first publication of the name Piroplasma annulatum was likely to be obtained. 14. The publication on 9th June 1950 of the Part (Triple Part 13/15) of volume 4 of the Bulletin of Zoological Nomenclature containing the Official Record of the decision reached by the Commission at Paris in this case elicited no further information bearing upon the question of the date and place of first publication of the name Piroplasma annulatum Dschunkowsky & Luhs. The position was further reviewed in the autumn of 1951 by Mr. Hemming, as Secretary to the Commission, in the light of the duty imposed upon him by the Commission at its Paris Session (Point (5) in the decision quoted in paragraph 13 above). Mr. Hemming then decided to make one further effort to obtain information on the foregoing subject by publishing a short Report on this case, together with an appeal to specialists to furnish any additional information which they might possess. Mr. Hemming’s Report, which was as follows, was published on 15th April 1952 (Hemming, 1952, Bull. zool. Nomencl. 7 : 206— 207) :— Case 14: Species to which the trivial name ‘‘ annulatum ’’ commonly treated as having been published by Dschunkowsky & Luhs in 1904 (in the combination ‘‘ Piroplasma annulatum ’’) (Class Sporozoa, Order Coccidiida) is to be treated as applicable By FRANCIS HEMMING, C.M.G., C.B.E. (Secretary to the International Commission on Zoological Nomenclature) (See 1950, Bull. zool. Nomencl. 4 : 431—433) 32. The question of the species of the Order Coccidiida (Class Sporozoa) to which is applicable the trivial name annulatum commonly treated as having been published by Dschunkowsky and Luhs in 1904 in the combination Piroplasma annulatum was submitted to the International Commission on Zoological Nomenclature by Dr. G. Witenberg (Hebrew University, Jerusalem) in an application which was 380 OPINIONS AND DECLARATIONS published in the Bulletin of Zoological Nomenclature in 1947 (Witenberg, 1947, Bull. zool. Nomencl. 1 : 223—224). In the course of preparing this application for submission to the Commission, in my capacity as Secretary to the Commission, I established that the name Piroplasma annulatum was not published in the paper by Dschunkowsky & Luhs which appeared in 1904 and which was always cited in the literature as the place where this name was first published. In spite of extensive correspondence with specialists on the subject, I was not able definitely to establish when and where this name was first published with an indication, though I did form an opinion as to the place where it probably first appeared. The foregoing investigations formed the subject of my Report which was published at the same time as Dr. Witenberg’s application (Hemming, 1947, Bull. zool. Nomencl. 1 : 234—236). 33. Dr. Witenberg’s application and my Report were considered by the International Commission on Zoological Nomenclature at its Session held in Paris in 1948 ; the Commission then took a decision on the question submitted by Dr. Witenberg, but decided to postpone for a short time rendering an Opinion on this subject, in the hope that further efforts might elicit information throwing light on the question of the place where the name Piroplasma annulatum was first published and the date on which it was first published. The publication in 1950 of the foregoing decision has not, however, brought any fresh informa- tion to light on this subject. Clearly the formal promulgation of the Commission’s decision on the question submitted by Dr. Witenberg cannot be allowed much longer to be held for the sake of investigations as to the date and place of first publication of the foregoing name. In order, however, to exhaust every possible means of obtaining information on this subject, this case is included in the present Report in the hope that there may be some protozoologist or other zoologist or some veterinary specialist who may be able to throw some additional light on this question. 15. On 11th October 1953, Mr. Hemming, as Secretary to the International Commission, prepared the following Report in discharge of the duty imposed upon him by the International Commission at its Session held in Paris in 1948 under Point (5) of the decision then taken by it in the present case :— Decision taken conditionally by the International Commission on Zoological Nomenclature at its Session held in Paris in 1948 in the case of the name ‘‘ Piroplasma annulatum ~’ Dschunkowsky & Luhs REPORT by FRANCIS HEMMING, C.M.G., C.B.E. Secretary to the International Commission In Paris in 1948 the International Commission on Zoological Nomenclature took certain decisions (1950, Bull. zool. Nomencl. OPINION 266 381 4 : 432433) in regard to the name Piroplasma annulatum commonly (though incorrectly) treated as having been published in 1904 in a paper by Dschunkowsky & Luhs entitled “‘ Die Piroplasmosen der Rinder” (1904, Zb/. Bakt. (Erste Abt.) 35 : 486—492) and agreed to render an Opinion embodying the decisions so taken. 2. One of the problems considered by the International Commission in connection with the present case was the determination of the date and place of first publication of the name Piroplasma annulatum. On this subject the Commission agreed that on the available evidence the foregoing name must be regarded as having been first published in 1906 in the Report of the VIIIth International Veterinary Congress, Budapest, 1905 (3 : 290), but (Point (5)) invited me, as Secretary to the Commission, “‘ to examine in consultation with specialists, the question whether there was’ any prospect of obtaining more precise information regarding the date on which, and the place in which, the name Piro- plasma annulatum was first published’. At the same time the Inter- national Commission agreed (Point (6)) to render an Opinion embodying the decisions then taken in regard to this name, ‘“‘as soon as the Secretary had either brought to a successful issue the enquiry referred to in (5) above or was satisfied that no further information regarding the date and place of first publication of the name Piroplasma annulatum was likely to be obtained ”’. 3. In view of the prolonged investigations into the foregoing question carried out before the Paris Session of the International Commission by Dr. Wenyon, Dr. Witenberg, and Mr. Cabot, and the negative evidence furnished by Professor Dschunkowsky (in corre- spondence with Dr. Witenberg) and by Professor: Pavlovsky (in correspondence with Dr. Hoare), it was evident at that Session that it was most unlikely that it would be possible to secure more precise _ information regarding the date on which, and the place in which, the name Piroplasma annulatum was first published, than was already available to the International Commission. Since that date, the foregoing problem has twice been ventilated in print: first, in June 1950 when the Official Record of the Proceedings of the Commission in Paris were published in volume 4 of the Bulletin of Zoological Nomenclature ; second, in April 1952 on the publication of my Report, with its accompanying appeal to specialists, in volume 7 of the Bulletin. On each occasion the result has been completely negative, no intorma- tion of any kind bearing upon the date and place of first publication of the name Piroplasma annulatum having been elicited. In the concluding stages of this investigation, the most valuable assistance has been rendered by Dr. C. A. Hoare, F.R.S. (The Wellcome Laboratories of Tropical Medicine, London) and by Miss I. M. Bellis of the same Institution, who, though unable to throw any additional light on the central issue, have solved a number of other bibliographical problems on which information was required in this case. The thanks 382 OPINIONS AND DECLARATIONS of the Commission are offered to both these specialists for the help so rendered. 4. At this stage, however, it is necessary to note an inadvertent error in the Point (3) ‘of the preliminary decision taken by the Commission in Paris in this matter, where it was stated that the species Theileria parva Sergent (Ed.) and Theileria dispar Sergent (Ed.), 1923, were objectively identical with Piroplasma annulatum Dschunkowsky & Luhs, [1906], and therefore that the specific names (there referred to, under the then correct term, trivial names) parva Sergent (Ed.), 1923, and dispar Sergent (Ed.), 1923, as published in each case in combination with the generic name Theileria were junior objective synonyms of annulatum Dschunkowsky & Luhs, [1906], as published in the com- bination Piroplasma annulatum. ‘This statement, which was based upon a misreading of the brief application originally submitted in this case, is incorrect, for the nominal species Theileria parva (for which Theileria dispar is no more than a substitute with a different name) and Piro- plasma annulatum were not based upon the same material and are therefore only subjectively the same as one another, and their names _ are subjective, and not objective, synonyms of one another. Moreover, the name Theileria parva was published not by Sergent (Ed.) but by Donatien (A.), Plantureux (E.), Rossi (P.), & Espérandieu (G.). Finally, the name Theileria dispar Sergent (Ed.) was published in 1924 and not in 1923. The necessary corrections will need to be made in the Ruling to be given in the present case. 5. In view of the circumstances described in paragraph 3 of the present Minute, I now, as Secretary to the International Commission on Zoological Nomenclature, hereby formally discharge the duty imposed upon me under Point (5) of the decision taken by the International Commission at its Session held in Paris in 1948 by reporting that I am satisfied that no further information regarding the date and place of first publication of the name Piroplasma annulatum is likely to be obtainable. SIGNED this Eleventh day of October, Nineteen Hundred and Fifty- Three. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING 16. The signature of the Minute by the Secretary reproduced in the immediately preceding paragraph completed the action called for from that Officer under Point (5) of the decision taken by the Commission in Paris in 1948. Thereupon, under Point (6) of OPINION 266 383 the said decision, definitive effect was automatically given to the decision by the Commission to render an Opinion embodying the matters specified in Points (1) to (3) of the Ruling agreed upon in Paris, as quoted in paragraph 13 of the present Opinion, subject to the inclusion therein of the corrections on certain points of detail noted in paragraph 4 of the Secretary’s Report of 11th October 1953 (paragraph 15 above). 17. Under the regulations relating to the Official List of Specific Names in Zoology and the Official Index of Rejected and Invalid Specific Names of the Zoology, the International Commission is required to place on the foregoing Official List every specific name which it either validates under its Plenary Powers or declares to be an available name, and on the foregoing Official Index every specific name which it either rejects under its Plenary Powers or declares to be invalid. In the present instance, the entry on the Official List of Specific Names in Zoology of the specific name annulatum Dschunkowsky & Luhs, [1906], as published in the combination Piroplasma annulatum, was inad- vertently omitted from the Official Record of the Proceedings of the International Commission. This omission has been rectified in the Ruling given in the present Opinion. 18. The following are the original references for the names which appear in the decision set out in paragraph 13 of the present Opinion :— annulatum, Piroplasma, Dschunkowsky & Luhs, [1906], Rep. Vil[th int. vet. Congr., Budapest, 1905, 3 : 290 dispar, Theileria, Sergent (E.) et al., 1924, Ann. Inst. Pasteur 38 : 297 parva, Theileria, Sergent (E.), 1923, Donatien, Plantureux et al., 1923, Bull. Soc. Path. exot. 16 :7 19. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Sixth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 112). 384 OPINIONS AND DECLARATIONS 20. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Com- missioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hank6 ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 21. The Ruling given in the present Opinion was dissented from by no Commissioner or alternate Commissioner present at the Paris Session. 22. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name ” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial” appearing also in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the fourteenth International Congress of Zoology, Copenhagen, 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 23. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. OPINION 266 385 24. The present Opinion shall be known as Opinion Two Hundred and Sixty-Six (266) of the International Commission on Zoological Nomenclature. Done in London, this Sixth day of January, Nineteen Hundred and Fifty-Four. Secretary to the International Commission on Zoological Nomenclature. FRANCIS HEMMING OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, CMG, CBE. 7 Secretary to the Commission is S es ; VOLUME 5. Part 28. Pp. 387—396 2% | of an = [ wd, i at \h oD INS W, SS” OPINION 267 Dig Rejection of a proposal for the validation, under the Plenary Powers, of the generic name Porina Walker, 1856 (Class Insecta, Order Lepidoptera) by the suppression thereunder of the generic name Porina -@Orbigny, 1852 (Class Bryozoa) LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Three Shillings and Ninepence (All rights reserved) ee ———————_____ Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 267 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. PrTErRS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Harold E. Vokes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEwSKi (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMCHE (Kgl. Veterinezr- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsourR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UstnGer (University of California, Berkeley, California, U.S.A.). OPINION 267 REJECTION OF A PROPOSAL FOR THE VALIDATION, UNDER THE PLENARY POWERS, OF THE GENERIC NAME “PORINA” WALKER, 1856 (CLASS INSECTA, ORDER LEPIDOPTERA) BY THE SUPPRESSION THEREUNDER OF THE GENERIC NAME “PORINA ” D’ORBIGNY, 1852 (CLASS BRYOZOA) RULING :—(1) The request for the use of the Plenary Powers for the purpose of validating the generic name Porina Walker, 1856 (Class Insecta, Order Lepidoptera) by suppressing the name Porina @Orbigny, 1852 (Class Bryozoa) is hereby rejected, because such action, though helpful in the Class Insecta (Order Lepidoptera), would involve the suppression of a well-known generic name in another part (Class Bryozoa) of the Animal Kingdom. (2) The generic name Porina Walker, 1856, is hereby placed on the Official Index of Rejected and Invalid Generic Names in Zoology as Name No. 66. (3) The generic name Oxycanus Walker, 1856 (gender of name : masculine) (type species, by selection by Kirby (1892): Oxycanus australis Walker, 1856) is hereby placed on the Official List of Generic Names in Zoology as Name No. 683. (4) The specific name australis Walker, 1856, as published in the combination Oxycanus australis, is hereby placed on the Official List of Specific Names in Zoology as Name No. 83. 390 OPINIONS AND DECLARATIONS I.—THE STATEMENT OF THE CASE On 10th July 1945, Dr. J. T. Salmon (Entomologist, Dominion Museum, Wellington, New Zealand) submitted the following request for the use of the Commission’s Plenary Powers for the suppression of the generic name Porina d’Orbigny, 1852 (Class Bryozoa) with the object of validating the generic name Porina Walker, 1856 (Class Insecta, Order Lepidoptera), a name of considerable interest in agriculture in New Zealand :— ‘* Porina ’’ versus ‘* Oxycanus ”’ By J. T. SALMON (Dominion Museum, Wellington, New Zealand) (extract from a letter dated 10th July 1945) I should like to draw your attention to recent changes in name concerning the genus Porina Walker in the Lepidoptera. It is sug- gested that this be changed to Oxycanus by N. B. Tindale, Records of the Australian Museum, Vol. 5, 1935, p. 280. This has been followed by Dumbleton and Dick in several papers in the New Zealand Journal of Science and Technology between 1940 and the present time, con- cerning the ravages of Porina (or Oxycanus) in the pastures in New Zealand. Porina is a very widespread genus in the Lepidoptera, very well represented in New Zealand and also in Australia, and is known to all entomologists as Porina, and has become known to the farming community of New Zealand as Porina. The change is made mainly because Porina previously had been used in the Mollusca; and I should like the matter to be taken up by your Commission to see whether it would be possible for Porina in the Lepidoptera to be declared a nomen conservandum, and that the change in name necessary be made in the Mollusca, where the name has a very much narrower use. In the meantime, until I hear from you in the matter, I am delaying the necessary changes of name which would have to be made in the reference collections and literature of this Museum. Il.—THE SUBSEQUENT HISTORY OF THE CASE 2. On receipt of Dr. Salmon’s letter, the present problem was given the Registered Number Z.N.(S.) 194. In acknowledging receipt on 9th September 1945 of this application, the Secretary OPINION 267 391 took note that the essential question which it would be necessary for the International Commission to consider in this case would be whether the advantages of the proposed action from the point of view of entomology (including its economic aspects) would be such as to outweigh any objections entertained by other specialists to the suppression of the name Porina d’Orbigny, 1852. 3. Issue of Public Notices: On 14th November 1947 a notice of the possible use by the International Commission on Zoo- logical Nomenclature of its Plenary Powers in the present case was issued to the serial publications prescribed by the Ninth International Congress of Zoology, Monaco, 1913. 4. In June 1948 the Secretary invited Dr. Salmon to ascertain, for the information of the International Commission, what would be the attitude of interested workers on the question of the proposed suppression of the name Porina d’Orbigny, 1852. At the same time Mr. Hemming invited Mr. R. Winckworth (London) to furnish a statement of his views on this question. The replies received from Mr. Winckworth and Dr. Salmon are given in the immediately following paragraphs. 5. Reply received from Mr. R. Winckworth: On 28th June 1948, Mr. Winckworth replied as follows :— Porina d’Orbigny, 1852, was proposed not for a genus of molluscs, but for a Cretaceous genus of Bryozoa, and the name has since been used also for recent species. Thus, in the Cambridge Natural History, it is listed among the principal genera of Polyzoa, and it is also referred to in two other places in connexion with recent species of Porina. 6. Reply received from Dr. J. T. Salmon : On 15th July 1948, Dr. Salmon replied as follows :— With reference to your letter of 23rd June, concerning the status of Porina Walker, I have been enquiring into this myself and have ascertained that the name as used in the Bryozoa is the type genus of the PORINIDAE and is a teaching type in Zittel’s work on Geology. On this account it seems to me that it is far more widely known in Palaentology than it is in agriculture or entomology in New Zealand and Australia. On this account I think the case for the suppression 392 OPINIONS AND DECLARATIONS of Porina in the Bryozoa in favour of its retention in the Lepidoptera should be withdrawn. 7. On 25th July 1948 Mr. Hemming, as Secretary, submitted to the Commission a Paper (I.C.(48)19), containing summaries of the principal points arising on a number of individual cases, of which the present was the fourth. Later, Mr. Hemming’s Paper was published as part of the historical record of the Pro- ceedings of the International Commission during its Paris Session (1950, Bull. zool. Nomencl. 3 : 135—138). The passage relating to the present case (3 : 136) was as follows :— (4) Proposed use of the Plenary Powers for ‘* Porina’’ Walker, 1856 (Order Lepideptera) : This name is of importance as this genus has a species which is a serious pasture pest in New Zealand. It is invalid, however, because it is pre-occupied by Porina d’Orbigny, 1852, the name for a genus of Cretaceous Bryozoa. Recent species have also been referred to this genus which is regarded as one of the principal genera of Bryozoa. It would seem to me to be quite a wrong use of the Plenary Powers to employ them to validate a name in one part of the Animal Kingdom, if (as here) this means upsetting a well-known generic name in some other part of the Animal Kingdom. It appears to me, therefore, that the present application should be rejected and that the next name for “‘ Porina’’, 1.e., Oxycanus Walker, 1856, should be used in its place, as in fact is already being done by some authors in New Zealand. It is suggested that concurrently with the rejection of the present application the name Oxycanus should be placed on the Official List. III.—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 8. The present application was considered by the International Commission on Zoological Nomenclature at the Thirteenth Meeting of its Paris Session held at the Sorbonne in the Amphi- théatre Louis-Liard at 1730 hours. The following is an extract from the Official Record of the Proceedings of the International OPINION 267 393 Commission, setting out the decision reached by it in this case at the foregoing meeting (Paris Session, 13th Meeting, Conclusion 5) (1950, Bull. zool. Nomencl. 4 : 356—357) :— THE COMMISSION agreed :— (1) to reject, for the reasons set out in Point (4) in Com- mission Paper I.C.(48)19,1 the application referred to in (a) above? that they should use their Plenary Powers to validate the generic name Porina Walker, 1856 (Class Insecta, Order Lepidoptera) by suppressing the generic name Porina d’Orbigny, 1852 (Class Bryozoa) ; (2) in conformity with the decision in regard to the procedure in cases where an application for the use of the Plenary Powers is rejected, to place on the Official List of Generic Names in Zoology the oldest available name for the genus for which the invalid name Porina Walker, 1856, had been published, namely the generic name Oxycanus Walker, 1856 (type species, by selection by Kirby (1892) : Oxycanus australis Walker, 1856) ; (3) in conformity with the decision in regard to the pro- cedure to be adopted where the Commission either suppresses a generic name or rules that it is invalid under the Rég/es, to add the name Porina Walker, 1856 (type species, by monotypy: Porina novaezealandiae Walker, 1856), to the Official Index of Rejected and Invalid Generic Names in Zoology ; (4) to place the specific trivial name australis Walker, 1856 ' (as published in the binominal combination Oxycanus australis) on the Official List of Specific Trivial Names in Zoology ; (5) to render an Opinion setting out the decisions specified in (1) to (4) above. - See paragraph 7. The application here referred to in point (a) of the Official Record of the Paris Proceedings (Paris Session, 13th Meeting, Conclusion 5) (1950, Bull. zool. Nomencl. 4 : 356) is the application reproduced in the first paragraph of the present Opinion. 394 OPINIONS AND DECLARATIONS 9. The following are the original references for the names placed on Official Lists and Official Indexes by the Ruling given in the present Opinion :— australis, Oxycanus, Walker, 1856, List. lep. Ins. Brit. Mus. (7) : 1574 Oxycanus Walker, 1856, List lep. Ins. Brit. Mus. (7) : 1573 Porina Walker, 1856, List lep. Ins. Brit. Mus. (7) : 1572 The reference for the type selection for Oxycanus Walker, 1856, is :—Kirby, 1892, Syn. Cat. Lep. Het. : 892 10. The gender of the generic name Oxycanus Walker, 1856, referred to in the decision given in paragraph 8, is masculine. 11. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth International Congress of Zoology, Paris, 1948, at its Fifth Meeting held on Monday, 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 104—105). 12. The Ruling given in the present Opinion was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming ; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hank6é ; Metcalf vice Peters; Riley vice Calman; Rode ; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 13. The Ruling given in the present Opinion was dissented from by no Commissioner or Alternate Commissioner present at the Paris Session. 14. At the time of the adoption of the Ruling given in the present Opinion, the expression prescribed for the second portion of the binomen which constitutes the scientific name of a species was the expression “ trivial name” and the Official List reserved for recording such names was styled the Official List of Specific Trivial Names in Zoology, the word “ trivial”? appearing also OPINION 267 395 in the title of the Official Index reserved for recording rejected and invalid names of this category. Under a decision taken by the Fourteenth International Congress of Zoology, Copenhagen 1953, the expression “ specific name” was substituted for the expression “trivial name” and corresponding changes were made in the titles of the Official List and Official Index of such names (1953, Copenhagen Decisions zool. Nomencl. : 21). The changes in terminology so adopted have been incorporated in the Ruling given in the present Opinion. 15. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing with the present case, and the present Opinion is accord- ingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the International Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 16. The present Opinion shall be known as Opinion Two Hundred and Sixty-Seven (267) of the International Commission on Zoological Nomenclature. Done in London, this Sixth day of January, Nineteen Hundred and Fifty-Four. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING Printed in England by Me OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, cM.G., C.B.E. Secretary to the Commission VOLUME 5. Part 29. Pp. 397408 | == OPINION 268 <7 Acceptance of the generic name Aspidoproctus (Class Insecta, Order Hemiptera) as from Newstead, 1901 LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Four Shillings and Sixpence (All rights reserved) Issued 10th August, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE RULING GIVEN IN OPINION 268 A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission . Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JoRDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MORTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. Te E. Vokes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKI (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANSouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILeEy (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). Professor Robert L. UsINGER (University of California, Berkeley, California, U.S.A.). OPINION 268 ACCEPTANCE OF THE GENERIC NAME ‘‘ ASPIDO- PROCTUS ” (CLASS INSECTA, ORDER HEMIPTERA) AS FROM NEWSTEAD, 1901 RULING :—(1) The generic name Aspidoproctus New- stead, 1901 (Class Insecta, Order Hemiptera), is available as from the date in April 1901 on which it was published and accordingly has priority over the name Lophococcus Cockerell [August], 1901. (2) Walkeriana pertinax Newstead, 1901, is the type species of the genus Aspidoproctus Newstead, 1901, by monotypy, that being the sole species at that time cited in connection with this generic name. (3) The generic name Aspidoproctus Newstead, 1901 (gender of generic name: masculine), with the above species as type species is hereby placed on the Official List of Generic Names in Zoology as Name No. 684. (4) The specific name pertinax Newstead, 1901, as published in the combination Walkeriana pertinax is hereby placed on the Official List of Specific Names in Zoology as Name No. 84. 400 OPINIONS AND DECLARATIONS I.—THE STATEMENT OF THE CASE On 18th February 1931 Professor T. D. A. Cockerell (University of Colorado, Boulder, Colorado, U.S.A.) submitted to the Inter- national Commission the following application for a ruling on the status of the generic name Aspidoproctus Newstead, 1901 (Class Insecta, Order Hemiptera) :— On the status of the name ‘‘ Aspidoproctus ’’ Newstead, 1901 (Class Insecta, Order Hemiptera) By T. D. A. COCKERELL (University of Colorado, Boulder, Colorado, U.S.A.) In 1901, Newstead [April 1901], Proc. zool. Soc. Lond. 1900 (4) : 948 described a species of COCCIDAE, of which he said that he had intended to place it in a new genus Aspidoproctus, but that he had decided that this was unnecessary. He therefore called the insect Walkeriana pertinax Newstead [1901], ibid. 1900 (4): 947 pl. 59. Later (1901, Entomologist 34:227), the name Lophococcus Cockerell was proposed for a different species (Lophococcus mirabilis Cockerell, 1901, ibid. 34 : 248), which is now considered congeneric with Walkeriana pertinax Newstead [1901]. Still later, authors have resurrected the name Aspidoproctus Newstead, and this is now used as the generic name for the species in question (see Morrison, (H.), 1928, Tech. Bull.. U.S. Dep. Agric. 52 : 151). My idea has been to accept the first published name, but there is confusion as to the meaning of the Code in this matter and this confusion should be cleared up by the International Commission. | OPINION 268 401 Tiss) SUBSEQUENT HISTORY OF THE CASE 2. In May 1938 the papers relating to the present application were transferred by Dr. C. W. Stiles to the care of Mr. Francis Hemming, who in 1936 had been elected Secretary to the Inter- national Commission. On receipt, these documents were given the Registered Number Z.N.(S.) 46. It had not been found possible to advance the consideration of this case by the time that the outbreak of war in Europe in September 1939 led to the evacuation of the records of the International Commission from London to the country as a precaution against the risk of des- truction through air raids. The Secretariat in London was re-opened in 1942 and steps were immediately taken to establish the Bulletin of Zoological Nomenclature as a means for drawing the attention of zoologists to applications submitted to the International Commission for decision. Work was at once started on outstanding applications with a view to arranging for their publication in the newly established Bulletin. The present application was sent to the printer in September 1944, but, owing to difficulties arising from paper rationing, shortage of labour at the printing works and similar causes, publication did not actually take place until 26th June 1946 (Cockerell, 1946, Bull. zool. Nomencl. 1 : 171). Il—THE DECISION OF THE INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE 3. The present application was considered by the Inter- national Commission on Zoological Nomenclature at the Thirteenth Meeting of its Paris Session held at the Sorbonne in the Amphithéatre Louis-Liard on Monday, 26th July 1948 at 1730 hours. The following is an extract from the Official Record of the Proceedings of the International Commission, setting out the decision reached by it in this case at the foregoing 402 OPINIONS AND DECLARATIONS meeting (Paris Session, 13th Meeting, Conclusion 25) (1950, Bull. zool. Nomencl. 4 : 381—382) :— THE COMMISSION agreed :— (1) that, in accordance with the ruling given in Opinion 41 and now to be embodied in the Rég/es, the generic name Aspidoproctus published by Newstead in April 1901, as a rejected manuscript name was available under Article 25 as from the date of being so published and accordingly had priority over the name Lopho- coccus Cockerell [August], 1901 ; (2) that Walkeriana pertinax Newstead, 1901, was the type species of the genus Aspidoproctus Newstead, 1901, by monotypy, that being the sole species at that time cited in connection with this generic name ; (3) to place :-— (a) the generic name Aspidoproctus Newstead [April], 1901 (Class Insecta, Order Hemiptera), with the above species as its type species, on the Official List of Generic Names in Zoology ; (b) the trivial name pertinax Newstead, 1901 (as published in the binominal combination Walkeriana pertinax), on the Official List of Specific Trivial Names in Zoology ; (4) to render an Opinion recording the decisions specified in (1) to (3) above. 4. The decision taken in the present case was reported to, and approved by, the Section on Nomenclature of the Thirteenth 1 See paragraph 7 below. OPINION 268 403 International Congress of Zoology, Paris, 1948, at its Fifth Meeting held on 26th July 1948 (1950, Bull. zool. Nomencl. 5 : 106). 5. The decision set out in paragraph 3 above was concurred in by the sixteen (16) Commissioners and Alternate Commissioners present at the Paris Session of the International Commission, namely :— Beltran vice Cabrera ; Boschma ; Bradley ; di Caporiacco ; Hemming; Hindle vice Jordan; Jorge vice do Amaral ; Kirby vice Stoll; Lemche vice Dymond; Mansour vice Hanko ; Metcalf vice Peters; Riley vice Calman; Rode; Sparck vice Mortensen ; van Straelen vice Richter ; Usinger vice Vokes. 6. The foregoing decision was dissented from by no Com- missioner or Alternate Commissioner present at the Paris Session. 7. At its meeting held at Copenhagen in August 1953 the Fourteenth International Congress of Zoology revoked the decision taken by the Thirteenth International Congress of Zoology, Paris, 1948, to incorporate into the Régles the provision previously laid down in the Commission’s Opinion 4 and decided to substitute therefor a provision under which (1) as from a future date to be specified in the revised Rég/es, no name published in a synonymy without an independent indication can acquire availability in virtue of being so published, (2) names originally so published, if generally accepted before the coming into force of the foregoing provision, are to be accepted, and (3) where there is a difference of opinion among the specialists as to whether a given name is generally accepted for the purposes of (2) above, the case is to be referred to the International Commission for decision (1953, Copenhagen Decisions zool. Nomencl. : 63—64). Since the foregoing provision is not (as explained above) to become operative until some date subsequent to the coming into force of the revised text of the Rég/es, it could not in any circumstances have an adverse effect upon the decision taken by the Commission 404 OPINIONS AND DECLARATIONS in the present case over five years ago. Nevertheless, when in the autumn of 1953, the Secretary to the Commission had an opportunity to start the preparation of Opinions recording the decisions taken by the Commission at Paris in 1948 and published two years later in the Official Record of the Proceedings of the Commission during its Paris Session (1950, Bull. zool. Nomencl. 4), it appeared to him that it would be inappropriate to include in the Ruling given in the present Opinion a specific reference to the provision incorporated in the Régles from Opinion 4 by the Paris Congress, having regard to the action taken in respect of that provision by the Copenhagen Congress. Mr. Hemming took the view that it was desirable to obtain the directions of the Com- mission on the question of the wording to be adopted in the Ruling embodying the decision taken by the Commission in regard to this case, before the requisite formal Opinion was prepared. Accord- ingly, on 19th November 1953, Mr. Hemming submitted the following memorandum to the Commission :— Wording of the decision regarding the name ‘‘ Aspidoproctus ’’ Newstead, 1901 By FRANCIS HEMMING Secretary to the International Commission _ During the last few weeks, while waiting for the proofs of the Copenhagen Report, I have started to prepare the Opinions required to give effect to the decisions taken in Paris in 1948, a task long overdue. In one case I have encountered a problem of drafting on which I wish to consult the Commission. The case is that of Aspidoproctus Newstead, 1901, dealt with on pp. 381—382 of vol. 4 of the Bulletin of Zoological Nomenclature. 2. In its decision on this case the Commission stated that it relied upon the ruling given in Opinion 4. Nermally, this statement would be included in the Ruling given at the head of the Opinion. But the Copenhagen Congress decided that, as from a future date not yet specified, the ruling in Opinion 4 is to be Withdrawn and that thereafter it will not be permissible to bring into use a name originally published in a synonymy. The ruling given in Paris in this case was well based OPINION 268 405 then and is well based now, but, in view of the Copenhagen decision, ‘it would, I feel, be likely to cause misunderstanding if an Opinion published now were to contain a prominent reference to Opinion 4, more especially as it is not necessary for any such reference to be made. I have accordingly prepared a revised draft of the wording to be used to give effect to the decision on Aspidoproctus, which omits all mention of Opinion 4. This draft is given at the head of the annexed Voting Paper and is now submitted for the consideration of the Commission. 8. Issue of Voting Paper V.P. (53)7: Simultaneously with the submission to the Members of the Commission of the memoran- dum reproduced in the immediately preceding paragraph, Mr. Hemming issued on 19th November 1953 a Voting Paper (V.P. (53)7) in which the Members of the Commission were invited to vote for or against the following “revision of the wording of the Paris decision in regard to the name Aspido- proctus”” :— Text of suggested revised wording of Ruling to be given in the present case (1) The generic name Aspidoproctus Newstead (Class Insecta, Order Hemiptera) is available as from the date in April 1901, on which it was published, and accordingly has priority over the name Lophococcus Cockerell [August], 1901. (2) Walkeriana pertinax Newstead, 1901, is the type species of the genus Aspidoproctus Newstead, 1901, by monotypy, that being the sole species at that time cited in connection with this generic name. (3) The generic name Aspidoproctus Newstead, 1901 (gender of generic name: masculine), with the above species as type species, 1s hereby placed on the Official List of Generic Names in Zoology. (4) The specific name pertinax Newstead, 1901, as published in the combination Walkeriana pertinax, is hereby placed on the Official List of Specific Names in Zoology. 9. The prescribed Voting Period: As the foregoing Voting Paper was issued under the One-Month Rule, the prescribed Voting Period closed on 19th December 1953. 406 OPINIONS AND DECLARATIONS 10. Particulars of the Voting on Voting Paper V.P.(53)7: The state of the voting on Voting Paper V.P. (53)7 at the close of the prescribed Voting Period was as follows :— (a) Affirmative Votes had been given by the following eighteen (18) Commissioners! (arranged in the order in which Votes were received) : Lemche; Ruiey; MHolthuis; Sylvester-Bradley ; Hering ; Bradley (J.C.) ; Bonnet ; Dymond ; Esaki ; Mertens; Vokes; Pearson; Boschma; Jaczewski ; Hemming ; do Amaral; Hanko ; Cabrera ; (b) Negative Votes : None ; (c) Voting Paper V.P.(53)7 was not returned by one (1) Commissioner : Stoll. 11. Declaration of Result of Vote : On 7th January 1954, Mr. Hemming, Secretary to the International Commission, acting as Returning Officer for the Vote taken on Voting Paper V.P. (53)7, signed a Certificate that the Votes cast were as set out in paragraph 1 The following Commissioners who took part in the vote on Voting Paper V.P. (53)7 were not members of the Commission at the time when the question cr with in the present Opinion was decided by the Commission in Paris in 1948 :— Professor Pierre Bonnet (Université de Toulouse, France) Professor Teiso Esaki (Kyushu University, Fukuoka, Japan) Professor Erich Martin Hering (Zoologisches Museum der Humboldt- Universitat zu Berlin, Germany) Dr. L. B. Holthuis (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands) Professor Tadeusz Jaczewski (Institute of Zoology, Polish Academy of Sciences, Warsaw, Poland) Dr. Henning Lemche (Universitetets Zoologiske Museum, Copenhagen, Denmark) (an Alternate Commissioner at the Paris Session) Professor Robert Mertens (Natur-Museum u. Forschungs-Institut Senckenberg, Frankfurt a. M., Germany) Mr. Norman Denbigh Riley (British Whee (Natural History), London) (an Alternative Commissioner at the Paris Session) Mr. P. C. Sylvester-Bradley (Sheffield University, Sheffield, England) OPINION 268 407 10 above and declaring that the proposal submitted in the fore- going Voting Paper had been duly adopted and that the decision so taken was the decision of the International Commission in the matter aforesaid. 12. On 8th January 1954, Mr. Hemming prepared the Ruling given in the present Opinion and at the same time signed a Certificate that the terms of the Ruling were in complete accord with those of the proposal approved by the International Commission at its Session in Paris in 1948 as re-worded in its Vote on Voting Paper V.P. (53)7. 13. The following are the original references for the names placed on Official Lists and Official Indexes by the Ruling given in the present Opinion :— Aspidoproctus Newstead [April], 1901, Proc. zool. Soc. Lond. 1900 (4) : 948 pertinax, Walkeriana, Newstead [April], 1901, Proc. zool. Soc. Lond. 1900 (4) : 947, pl. 59 14. The gender of the generic name Aspidoproctus Newstead, 1901, referred to in the decision quoted in paragraph 3, is masculine. 15. It must be noted at this point that at its meeting held at Copenhagen in August 1953 the Fourteenth International Congress of Zoology decided to substitute the expression * specific name ”’ for the expression “ trivial name ” adopted by the Thirteenth International Congress of Zoology, Paris, 1948, as the expression to be used for the second portion of the binomen which constitutes the scientific name of a species. At the same time the Copenhagen Congress made a corresponding change in the title of the Official List till then styled the Official List of Specific Trivial Names in Zoology. It is for this reason that this revised terminology was employed in the draft of the revised Ruling in the present case quoted in paragraph 8 above. 16. The prescribed procedures were duly complied with by the International Commission on Zoological Nomenclature in dealing 408 OPINIONS AND DECLARATIONS with the present case, and the present Opinion is accordingly hereby rendered in the name of the said International Commission by the under-signed Francis Hemming, Secretary to the Inter- national Commission on Zoological Nomenclature, in virtue of all and every the powers conferred upon him in that behalf. 17. The present Opinion shall be known as Opinion Two Hundred and Sixty-Eight (268) of the International Commission on Zoological Nomenclature. Done in London, this Eighth day of January, Nineteen Hundred and Fifty-Four. Secretary to the International Commission on Zoological Nomenclature FRANCIS HEMMING NOTICE TO SUBSCRIBERS The present volume (Volume 5) will be complete on the publication of Part 30 containing the indexes, title page, etc. This concluding Part is now in the press and will, it is hoped, be published at an early date. Printed in England by Mercarre & Cooper Limitep, 10-24 Scrutton St., London E C 2 RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE | | OPINIONS AND DECLARATIONS Edited by FRANCIS HEMMING, C.M.G., C.B.E., Secretary to the Commission VOLUME 5S. Part 30. (Concluding Part) En HSONiax OCT 21 5h | CIBRARY A LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office . 41, Queen’s Gate, London, S.W.7 1954 Price Fifteen Shillings (All rights reserved) Fr Issued lst October, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE OPINIONS PUBLISHED IN THE PRESENT VOLUME A. The Officers of the Commission President : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JorDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 ’ Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAporiIAcco (University of Parma, Italy). Professor J. R. DYMOND (University of Toronto, Canada). Dr. James L. Perers (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. sane E. Voxes (United States Geological Survey, Washington, D.C., U.S.A.). Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso Esaki (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWSKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. Stour (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 | Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JorGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirsy (University of California, Berkeley, California, U.S.A.). Dr. Henning LEMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. Metrcatr (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEY (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark). i Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). re ae L. Usincer (University cf California, Berkeley, California, OPINIONS AND DECLARATIONS RENDERED BY THE INTER- NATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE Edited by FRANCIS HEMMING, c.M.G., C.B.E. Secretary to the Commission VOLUMES5. Part30. Pp. 409—426 (also published with this Part: T.P.—XIV) CONTENTS Corrigenda ; Index to Authors of Applications dealt with in Opinions 240—268 and of comments on those Applications ; Subject Index ; Particulars of the dates of publication of the several Parts in which the present volume was published ; Instructions to Binders Also published with this Part: Title Page, Foreword ; Table of Contents. LONDON : Printed by Order of the International Trust for Zoological Nomenclature and Sold on behalf of the International Commission on Zoological Nomenclature by the International Trust at its Publications Office 41, Queen’s Gate, London, S.W.7 1954 Price Fifteen Shillings (All rights reserved) Issued 1st October, 1954 INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE COMPOSITION AT THE TIME OF THE ADOPTION OF THE OPINIONS PUBLISHED IN THE PRESENT VOLUME A. The Officers of the Commission Presideni : Dr. Karl Jordan, Ph.D., F.R.S. (British Museum (Natural History), Zoological Museum, Tring, Herts, England). Vice-President: Dr. James L. Peters (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.). Secretary : Mr. Francis Hemming, C.M.G., C.B.E. (London, England). B. The Members of the Commission Class 1949 Senor Dr. Angel CABRERA (La Plata, Argentina). Mr. Francis HEMMING (London, England) (Secretary to the Commission). Dr. Karl JorDAN (British Museum (Natural History), Zoological Museum, Tring, Herts, England) (President of the Commission). Dr. Th. MorTENSEN (Universitetets Zoologiske Museum, Copenhagen, Denmark). Dr. Joseph PEARSON (Tasmanian Museum, Hobart, Tasmania, Australia). Class 1952 Senhor Dr. Afranio do AMARAL (S. Paulo, Brazil). : Professor J. Chester BRADLEY (Cornell University, Ithaca, N.Y., U.S.A.). Professor Lodovico di CAPORIACCO (University of Parma, Italy). Professor J. R. DyMOND (University of Toronto, Canada). Dr. James L. PETERS (Museum of Comparative Zoology, Cambridge, Massachusetts, U.S.A.) (Vice-President of the Commission). Dr. ae E. Voxes (United States Geological Survey, Washington, D.C., Class 1955 Professor Dr. Hilbrand BoscHMA (Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands). Dr. William Thomas CALMAN (Tayport, Fife, Scotland). Professor Teiso ESAKi (Kyushu University, Fukuoka, Japan). Professor Béla HANKO (University of Debrecen, Hungary). Dr. Tadeusz JACZEWsKI (Polish Zoological Museum, Warsaw, Poland). Dr. Norman R. STOLL (Rockefeller Institute for Medical Research, Princeton, New Jersey, U.S.A.). C. Alternate Members of the Commission at the Session held in Paris in 1948 © Professor Enrique BELTRAN (Instituto Mexicano de Recursos Naturales Renovables A.C., Mexico City, Mexico). Dr. Edward HINDLE (Zoological Society of London, London, England). Dr. Arturo Ricardo JORGE (Museu Bocage, Lisbon, Portugal). Professor Harold Kirpy (University of California, Berkeley, California, U.S.A.). Dr. Henning LeMcHE (Kgl. Veteriner- og Landbohgjskole, Zoologisk Labora- torium, Copenhagen, Denmark). Professor Kamel MANsouR (King Fouad University, Cairo, Egypt). Professor Z. P. METCALF (North Carolina State College of Agriculture and Engineering, University of North Carolina, Raleigh, North Carolina, U.S.A.). Mr. N. D. RILEY (British Museum (Natural History), London, England). Professor Ragnar SPARCK (Universitetets Zoologiske Museum, Copenhagen, Denmark) Professor Victor van STRAELEN (Institut Royal des Sciences Naturelles de Belgique, Bruxelles, Belgium). See Anic Rae L. Ustncer (University of California, Berkeley, California, ee ae ee ee ee ee Corrigenda page 84. Line 26: substitute “ 1840’ for “ 1804”’. page 141. Ruling (3), line 1: substitute “ 1844” for “‘ 144”. It is much regretted that in Opinions 245 to 255 Dr. R. I. Sailer’s name was misspelled as Sailor. The pages involved are: 76, 86, 95, 96, 99, 108, 112, 120, 123, 132, 135, 144, 147, 156, 160, 168, 172, 179, 180, 183, 192, 196. Volume 5 413 INDEX TO AUTHORS OF APPLICATIONS DEALT WITH IN “OPINIONS ”? 240 TO 268 AND OF COMMENTS ON THOSE APPLICATIONS Page Andrewes, H. E. 49—5] Balfour-Browne, W. A. F. 50—51 Blackwelder, R. SIT Biair KG. .. 50—51 Breder, ©. M., Jr. ... See ess) paves. ©. Tf. .. La 203 Cameron, M. 50—51 Caporiacco, L. di .. 12226 Chace, F. A., Jr. 289—290, Si), Sul) China, W. E. 61—64, 74—75, 84—85, 94—95, 106—107, 118—119, 130—131, 142— 143, 154—155, 166—167, 178—179, 190—192 Cockerell, T. D. A. .. .. 400 Corbet, A. S... 332—334, 346— 347, 359—361 Costa Lima, A. 216—217 Fairchild, G. B. 211—214 Page Green, EE 64, 75 Hemming, F. 4—5, 19—20, 27— 32, 202—203, 217—226, 234 —240, 248—249, 256—258, 268—274, 284—288, 292— 293, 301—309, 312—315, 320 —322, 324—326, 334—338, 347—350, 361—363, 372— 373, 379—382, 392, 404 Hershkovitz, P. 237, 249 Hertig, M. H. 211—214 Hildebrand, S. F. 33—38 Jordan, K. 16—18 Kellogg, R. 237, 249 Lyon, M. W., Jr. 235—237 Macknight, F. C. 206—211 Marshall, Sir G. A. K. 50—51 Miller, R. R. 33—38 Mortensen, T. 66, 76 Osgood, W. H, 236—237, 249 414 Opinions and Declarations Page Pavlovsky, E.N. .. 5 cai Peters. Jee o: Ae LO Rapp, W. F. .. .. 204—205 Riley, N. D. 290—291, 350, 363 Sailer, R. I. 65—66, 76, 86, 96, 108, 120, 132, 144, 156, 168, 180, 192 Salmon, J. T. 390, 391—392 Schultz, L. P. see 33—38 Stone, A. Travassos, H. Trewavas, E. Usinger, R. L. Wenyon, C. M. Winckworth, R. Witenberg, G. 373—374 * _ 391 370—371, 374 Volume 5 SUBJECT INDEX abietum Bergroth, 1914, Gastrodes (Class Insecta), designated, under the Ieee Powers, to be type species of Gastrodes Westwood, 1840 .. placed on the Official List of Specific Names in Zoology as Name No. 65 . Alydus Fabricius, 1803 (Class Insecta), placed on the Official List of Generic Names in Zoology as Name No. 670, with Cimex calcaratus Linnaeus, 1758, as type species. . gender of name annulatum Dschunkowsky & Luhs, [1906], as published in the combination Piro- plasma annulatum (Class Sporozoa), determination of the species to which this name shall be held to apply fe a ce 2 ae : ms placed on the Official List of Specific Names in Zoology as Name No. 82 .. antillarum Kirkaldy, 1909, Cimex (Class Insecta), designated, under the Me Powers, to be the type species of Tetyra Fabricius, 1803 placed on the Official List of Specific Names in Zoology as Name No. 74.. Aquarius Schellenberg, 1800 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex najas De Geer, 1773, designated as type species. . gender of name placed on the Official List of Generic Names in Zoology as Name No. 673 .. arenarius Edwards, 1771, as published in the combination Cancer arenarius (Class Crustacea), placed on the pues Index ao een and Invalid Dige Names in Zoology as Name No. 18 ; aristolochiae Fabricius, 1775, as published in the combination Papilio aristolochiae (Class Insecta), validation of, under the Plenary Powers ie Wi ae placed on the Official List of Specific Names in Zoology as Name No. 81.. 415 Page 83 83 =) 59 369 370 189 189 93 93 93 300 357 357 416 Opinions and Declarations aristolochiae Pallas, as used by that author in the combination Papilio aristolochiae, on any date prior to the publication in 1775 of the name aristolochiae Fabricius in the same combination, suppression of, under the Plenary Powers, for the purposes both of the Law of Priority and the Law of Homonymy.. placed on the Official Index oe fogeted and Invalid Be Names in Zoe as Name No. 22 : ascanius Cramer, [1775], as published in the Seinen Papilio ascanius (Class Insecta), validation of, under the Plenary Powers ie ie BY placed on the Official List of Specific Names in Zoology as Name No. 80.. ascanius Linnaeus, 1768, as published in the combination Papilio ascanius (Class Insecta), suppression of, under the Plenary Powers, for the purposes both of the Law of Priority and the Law of Homonymy i Be Ee placed on the Official Index vy aCe and Invalid Se Names in oe as Name No. 21 Aspidoproctus Newstead (Class Insecta), acceptance of, as from April 1901.. gender of name placed on the Official List of Generic Names in Zoology as Name No. 684, with Walkeriana pertinax Newstead, 1901, as type species australis Walker, 1856, as published in the combination Oxycanus australis (Class Insecta), placed on the Official List of Specific Names in Zoology as Name No. 83 austriacus Schrank, 1776, Cimex (Class Insecta) designated, under the ene Powers, to be the type species of Bellocoris Hahn, 1834 placed on the Official List of Specific Names in Zoology as Name No. 67.. Bellocoris Hahn, 1834 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex austriacus Schrank, 1776, designated as type species. . gender of name placed on the Official List of Generic Names in Zoology as Name No. 674.. Beosus Amyot & Serville, 1843 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex maritimus Scopoli, 1763, designated as type species gender of name placed on the Official List of Generic Names in Zoology as Name No. 675. . bicolor Douglas & Scott, 1866, Litosoma (Class Insecta), designated, under the Plenary Powers, to be the type species of Pachylops Fieber, 1858 .. placed on the Official List of Specific Names in Zoology as Name No. 72 .. Page 357 357 357 357 357) 357 410 410 410 389 105 105 105 105 105 1170 117 117 165 165 Volume 5 calcaratus Linnaeus, 1758, as published in the combination Cimex calcaratus (Class Insecta), placed on the Official List of Specific Names in Zoology as Name No. 63 Carabus Linnaeus, 1758 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Carabus granulatus Linnaeus, 1758, designated as type species gender of name placed on the Official List of Generic Names in Zoology as Name No. 669.. Catesby, Mark, The Natural History of Carolina, as republished by Edwards in 1771, rejection of names used by, but acceptance of names formed in accordance with the Linnean system included by Edwards in the Concordance inserted in Volume 2 of that edition .. ae ae placed (with the exception of the Concordance containing the names mentioned above), on the Official Index of Ree and Invalid Works in ee Nomenclature as Work No. 9 Catesby, Mark, The Natural History of Carolina, the Concordance of Linnean names inserted by Edwards, G. in Volume 2 of the 1771 edition, pa ea of, for nomenclatorial purposes F placed on the Official List of Works RTE as Available in tes Nomen- clature as Work No. 6 Catoplatus Spinola, 1837 (Class Insecta), all type selections for, set aside under the Plenary Powers, and TJingis fabricii Stal, 1868, designated as type species. . gender of name placed on the Official List of Generic Names in Zoology as Name No. 676.. clavatus Linnaeus, 1767, Cimex (Class Insecta), designated, under the ae nats Powers, to be the type species of Pilophorus Hahn, 1826 .. placed on the Official List of Specific Names in Zoology as Name No. 73 .. Coriscus Schrank, 1796 (Class Insecta), suppression of, under the Plenary Powers, for the purposes of the Law of Priority but not for those of the Law of Homonymy placed on the Official Index of Rares and Invalid Generic Names in Foe as Name No. 64 .. P Dictyonota Curtis, 1827 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Dictyonota strichnocera Fieber, 1844, n gesenats as type species Be ae ins ome i s 5 gender of name placed on the Official List of Generic Names in Zoology as Name No. 677.. dispar Sergent, E., 1924, as published in the combination Theileria dispar (Class Sporozoa), declared a junior subjective homonym of Piroplasma annulatum Dschunkowsky & Luhs, [1906]. . ma hs a fs e, Ie Echeneis Linnaeus, 1758 (Class Pisces), designation, under the Plenary Powers, of Echeneis naucrates (emend. of neucrates) Linnaeus, 1758, as type species of : position of, on the Official List of Generic Names in Zoology, confirmed 417 Page 59 47 47 47 255) 255 255 Pas) 129 129 129 177 liga 59 59 141 141 141 369 2 25 418 Opinions and Declarations fabricii Stal, 1868, Tingis (Class Insecta), designated, under the Melua Powers, to be the type species of Catoplatus Spinola, 1837 . placed on the Official List of Specific Names in Zoology as Name No. 69.. feisthamelii Duponchel, 1832, as published in the combination Papilio feisthamelii (Class Insecta), place on the PRS List of a Names in mae as Name ING, WE. oc 5 Flebotomus Rondani, 1840 (Class Insecta), an Invalid Original spelling, placed on the Official Index of Rejected and Invalid Generic Names in Zoology as Name No. 65. . Frisch, J. L., Das Natur-System der vierfiissigen Thiere, 1775, rejection of, for nomen- clatorial purposes ae aks ah Sr ae 5 placed on the Official Index of Reged ss and Invalid Works in oolenies Nomenclature as Work No. 8 Gastrodes Westwood, 1840 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Gastrodes abietum Bevel 1914, designated as type species : oe : 5 : gender of name placed on the Official List of Generic Names in Zoology as Name No. 672 .. granulatus Linnaeus, 1758, Carabus (Class Insecta), designated, under the ee Powers, to be the type species of Carabus Linnaeus, 1758 . ale placed on the Official List of Specific Names in Zoology as Name No. 62 .. Gronovius 1763—1781, Zooph yaa Gronovianum, rejection of, for nomenclatorial purposes a5 ‘ a a sth a placed on the Official Index af Reieeire and ovale Works in 7o0loe es Nomen- clature as Work No. 11 Gronovius, 1763—1781, Index to Zoophylacium Gronovianum, published By Meuschen, F. C., in 1781, rejection of, for nomenclatorial purposes placed on the Official Index of ees and Invalid Works in manans Nomen- clature as Work No. 12 AG : ilia {Schiffermiiller & Denis], 1775, as published in the combination Papilio ilia (Class Insecta), pee on the Official L List oi Deu Names in meee as Name No. 79 Sis Page 129 129 331 201 247 247 83 83 83 47 47 283 283 283 283 345 Volume 5 iris Linnaeus, 1758, as published in the combination Papilio iris (Class Insecta), designation, under the Plenary Powers, of a figure to represent the lectotype of.. placed on the Official List of Specific Names in Zoology as Name No. 48 .. littoralis Linnaeus, 1758, Cimex (Class Insecta), designated under the beer Powers, to be the type species of Sa/da Fabricius, 1803 ae placed on the Official List of Specific Names in Zoology as Name No. 64 . mabouya Lacépéde, 1788, as published in the combination Lacertus mabouya (Class Reptilia), placed on the Official List of Specific Names in Zoology as Name No. 59 Mabuya Fitzinger, 1826 (Class a tae Lacerta hee de peter 1788, declared to be type species of 5 ; maritimus Scopoli, 1763, Cimex (Class Insecta), designated, under the ee Powers, to be the type species of Beosus Amyot & Serville, 1843 .. placed on the Official List of Specific Names in Zoology as Name No. 68 .. Meuschen, F. C., Museum Gronovium, 1778, rejection of, for nomenclatorial purposes placed on the Official Index of Boeced and Invalid Works in a Nomen- clature as Work No. 10 : Nabis Latreille, [1802—1803} (Class Macca) Posen of, on the siete List a Generic Names in Zoology confirmed . najas De Geer, 1773, Cimex (Class Insecta), designated, under the Plenary Powers, to be the type species of Aquarius Schellenberg, 1800. . : : ; placed on the Official List of Specific Names in Zoology as Name No. 66 .. naucrates (emend. of neucrates) Linnaeus, 1758, as published in the combination Echeneis naucrates (Class qisees), pied on the Cueat List ye Malo: Names in Zoology as Name No. 60 : : neucrates (an Invalid Original Spelling for naucrates) Linnaeus, 1758, as published in the combination Echeneis neucrates (Class Pisces), placed on the Official Index of Rejected and Invalid Specific Names in Zoology as Name No. 17.. ae Pe Nozeman & Vosmaer, Geslachten der Vogelen, 1758, a Dutch Translation of Moehring’s pre-Linnean work entitled Avium Genera, 1752, Say of, for nomenclatorial purposes : ae “ie ae me Bi ef af placed on the Official Index af Beers and Invalid Works in Paclaglen, Nomen- clature as Work No. 6 419 Page 345 345 73 3) Lil 7/ 117 267 267 59 93 93 26 26 15 15 420 Opinions and Declarations Page Official Index of Rejected and Invalid Generic Names in Zoology, names placed on :— Coriscus Schrank, 1796 ms Bi Re ae ae af on by 59 Flebotomus Rondani, 1840 aio ted Ae: ee Poe Bhs aie Be 201 Porina Walker, 1856 a5 3 5% ae ies ae Hi as Be 389 Remora Forster, 1771 .. ee a i au ae S vi ae 26 Remora Gouan, 1770... a fee a Ys Ea ie aid a 26 Official Index of Rejected and Invalid Specific Names in Zoology, names placed on :— arenarius Edwards, 1771, Cancer aus at Ms 300 aristolochiae Pallas, in so far as published, prior to 1775, Papilio ote ta) SSM ascanius Linnaeus, 1768, Papilio Pe : ; ae, As Leas neucrates Linnaeus, 1758, Echeneis .. 3 bas we BS ah at 26 quadratus Meuschen, 1778, Cancer us ae ae ae o as ei 300 quadratus Meuschen, 1781, Cancer fa ne oe BS ae Oe 2c 2300 Official Index of Rejected and Invalid Works in Zoological Nomenclature, works placed on :— Catesby, Mark, 1771, The Natural History of Carolina, as republished bye Edwards 283 Frisch, J. L., 1775, Das Natur-System der vierfiissigen Thiere re 247 Gronovius, 1763—1781, Zoophylacium Gronovianum. . a & Be PASS) Gronovius, 1763—1781, Index to Zoophylacium Gronovianum Fo oy pe 33) Meuschen, F. C., 1778, Museum Gronovium .. a tr Es Ba AST Nozeman & Vosmaer, 1758, Geslachten der Vogelen.. 15 Zimmermann, A. E. W. von, 1777, esas Zoologicae, Quadrupedum Domicilia et Migrationes sistens .. ae F a ai 3 Koy LSS Official List of Generic Names in Zoology, names placed on :— Alydus Fabricius, 1803 .. a a 26 A ee ae oe Ns 59 Aquarius Schellenberg, 1800 .. re bn iz as as ws a4 98 Aspidoproctus Newstead, 1901 ats as of es a i .. 410 Bellocoris Hahn, 1834 .. , i zal ao on SH ah ae 105 Beosus Amyot & Serville, 1843. us ae i te a ae Se 117 Carabus Linnaeus, 1758 oe ee ue a4 oe oes -. Se 47 Catoplatus Spinola, 1837 ay eA Ag a As = an Be 129 Dictyonota Curtis, 1827 .. Li e est. yee a ad ue Ph 141 Gastrodes Westwood, 1840 ne an Ae ie hs A ae a 83 Oncotylus Fieber, 1858 .. a ee Bie. =e a Ei at si 153 Oxycanus Walker, 1856 a an a ae aa Pe ot: 08 389 Pachylops Fieber, 1858 . : a Ag ire a8, 165 Phlebotomus (emend. of Fleboromus) Rondani, "1840. ae a ie ve 20 Pilophorus Hahn, 1826 : as re Ae a 177 Remora Gill, 1862 e. ee Ba By 5 ~ a Sg nis 26 Salda Fabricius, 1803... ia ke ny ait a m A 73 Tetyra Fabricius, 1803 .. ee ae at ee pee ae Me Peder coe, Official List of Generic Names in Zoology, names confirmed in position on :— Echeneis Linnaeus, 1758.. 35 Be se Aa oy; oh te te 25 Nabis Latreille [1802—1803] .. ds ae #5 as ve Aa a 59 Volume 5 Official List of Specific Names in Zoology, names placed on :— abietum Bergroth, 1914, Gastrodes annulatum Dschunkowsky & Luhs, [1906], Piroplasma antillarum Kirkaldy, 1909, Cimex : aristolochiae Fabricius, Gai Papilio ascanius Cramer, [1775], Papilio australis Walker, 1856, Oxycanus austriacus Schrank, 1776, Cimex : bicolor Douglas & Scott, 1866, Litosoma calcaratus Linnaeus, 1758, Cimex clavatus Linnaeus, 1767, Cimex dispar Sergent, E., 1924, Theileria fabricii Stal, 1868, Tingis 5 feisthamelii ‘Duponchel, 1832, Papilio granulatus Linnaeus, 1758, Carabus .. ilia | Schiffermiiller & Denis], gs Pape iris Linnaeus, 1758, Papilio littoralis Linnaeus, 1757, Cimex mabouya Lacépéde, 1788, Lacertus maritimus Scopoli, 1763, Cimex najas De Geer, 1773, Cimex naucrates (emend. of neucrates) Linnaeus, 1758, Echeneis papatasi Scopoli, 1786, Bibio .. ava ay. pertinax Newstead, 1901, Walkeriana .. podalirius Linnaeus, 1758, Papilio punctipes Reuter, 1873, Oncotylus quadratus Fabricius, 1781, Cancer remora Linnaeus, 1758, Echeneis strichnocera Fieber, 1844, Dictyonota Official List of Works Approved as Available in Zoological Nomenclature, works placed on :— Catesby, Mark, 1771, The Natural History of Carolina (Edwards ed.), Concordance with Linnean names inserted by Edwards in Volume2 .. Zimmermann, A. E. W. von, 1778—1783, Geographische Geschichte des Menschen und der allzemein verbreiten vierfiissigen Thiere Oncotylus Fieber, 1858 (Class Insecta) all type selections for, set aside under the Plenary Powers, and Oncotylus punctipes Reuter, 1873, designated as type species gender of name placed on the Official List of Generic Names in Zoology as Name No. 678.. Oxycanus Walker, 1856 (Class Insecta), placed on the Official List of Generic Names in Zoology as Name No. 683 with Oxycanus australis Walker, 1856 as type species gender of name Pachylops Fieber, 1858 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Litosoma bicolor pouens & Scott, 1868, aa ais as EYRE species : Pe gender of name : ai ys F placed on the Official List of Generic Names in Zoology as Name No. 679.. 255 233 153 153 153 389 389 165 165 165 422 Opinions and Declarations papatasi Scopoli, 1786, as published in the combination Bibio papatasi (Class inseagy placed on the Official List of Specific Names in Zoology as Name No. 75 . parva Donatien, Plantureux et al., 1923, as published in the combination Theileria parva (Class Sporozoa), declared a junior subjective homonym of gag annulatum Dschunkowsky & Luhs, [1906| : 5 5 oe pertinax Newstead, 1901, as published in the combination Walkeriana pertinax (Class Easceta), placed on the ue List a BCE Names in aan as Name No. 84 : Phlebotomus Rondani, 1840 Kees pasceta)s emendation to, under the Plenary Powers, of Flebotomus ; fs oe a ve ies tye gender of name placed on the Official List of Generic Names in Zoology as Name No. 682, with Bibio papatasi Scopoli, 1786, as type species Pilophorus Hahn, 1826 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex clavatus Linnaeus, 1767, designated as type species .. gender of name placed on the Official List of Generic Names in Zoology as Name No. 680. . podalirius Linnaeus, 1758, as published in the combination Papilio podalirius (Class Insecta), designation, under the Plenary Powers, of a description to represent the lectotype of ; Be ae ate a ve ie a ae placed on the Official List of Specific Names in Zoology as Name No. 77 .. Porina Walker, 1856 (Class Insecta), nalee aay of a proposal for the validation of, under the Plenary Powers : i es ae at se Fes placed on the Official Index of Re and Invalid Generic Names in Zool as Name No. 66 .. 4 ; punctipes Reuter, 1873, Oncotylus (Class Insecta), designated, under the Plena Powers, to be the type species of Oncotylus Fieber, 1858 placed on the Official List of Specific Names in Zoology as Name No. 71 .. quadratus Fabricius, 1781, as published in the combination Cancer quadratus (Class Crustacea), declared to be the oldest available name for the “‘ Sand Crab ” and placed on the Official List of Specific Names in Zoology as Name No. 76. . quadratus Meuschen, 1778, as published in the combination Cancer quadratus (Class Crustacea), placed on the Official Index of Boece and Invalid Spears Names in Zoology as Name No. 19 , quadratus Meuschen, 1781, as published in the combination Cancer quadratus (Class Crustacea), placed on the Official Index of peace and Invalid See Names in Zoology as Name No. 20... Page 201 369 410 201 201 201 177 107, 177 331 331 389 389 153 153 300 300 300 Volume 5 423 Page Remora Forster, 1771 (Class Pisces), placed on the ee Index a RoE and Invalid Generic Names in Zoology as Name No. 62 .. 26 Remora Gill, 1862 (Class Pisces), pieced: on the gerne! List oh Generic Names in Zoology as Name No. 668 Be 26 Remora Gouan, 1770 (Class Pisces), placed on the vole! Index oF ee and Invalid Generic Names in Zoology as Name No. 63 .. 26 remora Linnaeus, 1758, as published in the combination Echeneis remora (Class Pisces), placed on the Official List of Specific Names in Zoology as Name No. 61.. 26 Salda Fabricius, 1803 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex littoralis Linnaeus, 1758, designated as type species .. 18 gender of name a: Suk mt a ef ee Be as 73 placed on the Official List of Generic Names in Zoology as Name No. 671.. 73 “Sand Crab”, determination of the specie name for, see also under quadratus Fabricius, 1781, Cancer .. bi : ae 5 a om Sp 297—328 strichnocera Fieber, 1844, Dictyonota (Class Insecta), designated, under the Plenary Powers, to be the type species of Dictyonota Curtis, 1827 .. 5 141 ‘placed on the Official List of Specific Names in Zoology as Name No. 70 .. 141 Tetyra Fabricius, 1803 (Class Insecta), all type selections for, set aside under the Plenary Powers, and Cimex antillarum Kirkaldy, 1909, designated as type species. . 189 gender of name 189 placed on the Official List of Generic Names in Zoology as Name No. 681.. 189 Zimmermann, A. E. W. von, 1778—1783, Geographische Geschichte des Menschen und der allgemein verbreiten vierfiissigen Thiere, acceptance of, for nomenclatorial purposes ee 36 eS ae oe wa ue : 233 placed on the Official List of Works gperoned. as Ayailable in tae Nomen- clature as Work No. 5 233 Zimmermann, A. E. W. von, 1777, Specimen Zoologicae, Quadrupedum Domicilia et Migrationes sistens, rejection of, for nomenclatorial purposes ae 233 placed on the Official Index of eeeciee and Invalid Works in Aan al Nomen- clature as Work No. 7 Ne 233 Volume 5 425 PARTICULARS OF DATES OF PUBLICATION OF THE SEVERAL PARTS IN WHICH THE PRESENT VOLUME WAS PUBLISHED Part No. OWN NHND NA BR WN Uo N NN NW ND PP RB RR RR RK Re Contents of Part 1—12 13—22 23—44 45—56 57—70 71—80 81—90 91—102 103—114 115—126 127—138 139—150 151—162 163—174 175—186 187—198 199—230 231—244 245—252 253—264 265—280 281—296 297—328 329—342 343—354 355—366 367—386 387—396 397—408 409—426 ey Date of Publication 21st May 1954 21st May 1954 21st May 1954 21st May 1954 21st May 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 11th June 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 10th August 1954 Ist October, 1954 426 INSTRUCTIONS TO BINDERS The present volume should be bound up as_ follows :—T.P.—XIV 1—426, coloured wrapper (cover) to Part 30. Note : The wrappers (covers) to the Parts of which this volume is composed form, with the exception of the coloured wrapper (cover) issued with Part 30, an integral part of those Parts, being included for purposes of pagination. These wrappers should therefore be bound up in the position in which they were issued. The brown wrapper (cover) to Part 30 should be bound in at the end of the volume. Printed in England by Metcarre & Cooper LimiTED, 10-24 Scrutton St., London E C 2 P 97Q° \F 4 ITHSONIAN | 3 WAL ULUNUI 90 0338 88 01571