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Wine ptt aes ‘ShaSANaet aay Ai) ae elk TM | TON cv9y itt ki ST Ni 1h, = . | ampere ~ i] MWe oo amen. Anat 4 Pid < Vy, nfiDincececesceess TIMPOCOEEE RENE "eater cet it i cette ig ) wine , Peg Wdaga- ude . ahs vw N. see ‘ ittoee x.” | TP tid | on Sy yettr cL ete apellg| tee APN ARRRR agent VIMEO Nig ith tte ng Ls 2” APs Pa Pygr : re © * ar > i y Ge wanaanns” TTL EPL Tht ‘ sf? dy 4 wal r-> bs Se | {Ue whee eg reer Piel 4 Sone Md hook we SL » ae RO AT aA alg “wt V Wy Nan, « = OBR AM ee.” % » ore wey ny ot VE y ‘ ae. Ne CEN MAN ae ato N L% pray ars Sian pi Ns a~ AL} AL AP pesa Ws de ya hy oe . i ’ . ae b | ae Le | eb TT Ce es ee « 7 ) By / 7 3 Png hag : mre Jobb Aol Al, belek ete ey angie anne Ny MES LI yeh ron | nary \ wnat yo MS pe : nouget geet A \ - ND. Ar’ we ae nee WA 9° ak # any sree and iP needy qv Vets bees Peel ate hare Ahh u(t et ae ~we 8 PET we ae : : } a oe ‘VrlTe Wee nas Oe a. ane 7 = = - ha _ a PROCEEDINGS OF THE GENERAL MEETINGS FOR SCIENTIFIC BUSINESS OF THE « cocangeaeree: SOCLETY fe ~ OF LONDON. ( Feo | N LAGS AS Sv 2s] wise 1916, pp. 449-756, witH 8 PLATES and 63 TEXt-FIGURES. PRINTED FOR THE SOCIETY, SOLD AT ITS HOUSE IN REGENTS PARK. LONDON MESSRS. LONGMANS, GREEN, AND CO, PATERNOSTER ROW. - Joy JES) a8 OF THE COUNCIL AND OFFICERS OF THE ZOOLOGICAL SOCIETY OF LONDON. 1916. Patron. His Magesty Tur Kina. COUNCIL. His Grace Tar Duke or Beprorp, K.G., F.R.S., President. THE Hon. Cecit Barine, M.A. | AuFrepD H. Cocks, Esq., M.A. tae Rr. on. THe Hart | or Cromer, P.C., G.C.B., CrOLILKGIgg bolas, © aags | President. Cartes DrumMonp, Treasurer. ALFRED Hzra, Esq. Cart. Huceu 8. GuLADSsroNsE, | M.A. SripNeY Freperic Harmer, Hsq., MvA.. Sc.D), (RRS) Viee= President. Cou. Sir WATER R. LAWRENCE, Br., G.C.1.E. Sir Epmunb Gites Lover, Br., Vice-President. | Prof. Ernest W. MaAcBripe, M.A., D.Se., F.R.S., Vice- President. Esq., PRINCIPAL Gua Ava Ke. Hsq., D.Sc. EK. G. B. Meape-Watpo, Ksq. P. Caatmers: MircHewy, Ksq., Mies IDSie., IGibelDe, TAI RAS.. Secretary. AuBaerr Pam, Hsq. THe Hart or Porrsmoura. OLDFIELD Tusomas, Ksq., KARAS: AuBYN Trevor-Batryr, Hsq., M.A. MARSHALL, Antsoxy H. WiHINGFIELD, Hq. Arravurk Smita Woopwarp, Ksq., LL.D. F.R.S., Vice- President. Hanry Woopwarp, Hsq., LL.D., F.R.S., Vice-President. OFFICERS. P. Caaumers Mircurity, M.A., D.Se., LL.D., F.B.S., Secretary. Tey, Ity Je@om@oie, IR ISo4 IBAIbUS). Curator of Mammals and Resident Superintendent of the Gardens. D. Sera-Survi, Curator of Birds and Inspector of Works. Hpwarb G. BouLENGER, Curator of Reptiles. Prof. H. Maxwenn Lurroy, Curator of Insects. Prof. Henry G, Pummer, F.R.S., M.R.C.S., Pathologist. Henry G. J. Peavor, Librarian and Clerk of Publications. Joun Barrow, Accountant. W. H. Coin, Chief Clerk. LIST OF CONTENTS. 1916, pp. 449-756. EXHIBITIONS AND NOTICES. Mr. E. G. Boutencer, F.Z.S., Curator of Reptiles. Exhi- bition of living specimens of the African Lungfish (Protopterws GNMECteNs) ...21.0..ccceen neces seen dene ecsen yes The Rev. H. N. Hurcutnson, M.A., F.Z.S. Exhibition of a model of the Dinosaur, Diplodocus carnegieét ......-.- Mr. C. Tave Recan, M.A., F.Z.S. Exhibition of a rare Fish, Ceutrolophus britannicus (Giinth.), and of a Silver Ling (Wolva elongata) .........0.-...0ceseseee eee eee Dr. R. W. Suuretpr, C.M.Z.S8. Notes on Albinism in PATE Ta Canny e AvnitN Al Seles ate ele eeinsersl eteetslel lel tele eres etoscae Dr. F.. DuCane Gopmay, F.R.S., F.L.S., F.Z.S., and others. Résumé of a Discussion on the results published in the ‘ Biologia Centrali- Americana, with special reference to the zoo-geographical relations between Amine ri caerngaeAshiel Can) aaateericm ee aaa. eeiaaneaede © arti tea, The Srcrerary. Report on the Additions to the Society’s Menagerie during the months of May, June, July, ATES, Aue! Sigpuewnloeie, WENO — .coocospenonocosdabceranese Mr. AurreD Ezra, F.Z.8. Exhibition of living specimens Oluhneertare UuuibiMoOs anal Cust seas seer: arene ener: Mr. D. Seru-Susru, F.Z.8S., Curator of Birds. Exhibition of Birds’ Eggs laid in the Society’s Gardens ......... Mr. D. Sera-Smirn, ¥F.Z.8., Curator of Birds, Exhibition of skans/ of -various!mesbling biIrdS) 2 ....20....4-.00s.6+---- Page 539 539 039 p40 541 739 741 741 1V Mr. R. I. Pococx, F.R.S., F.LS., F.Z.8., Curator of Mammals. Lantern Exhibition of some new and little-known cutaneous scent-glands in Mammals (Text-figures 1-12) ..........:. cess cece tees cee ee ns eeeeeees The Secrerary. Report on the Additions to the Society’s Menagerie during the month of October, 1916 ...... Mr. Atrrep Ezra, F.Z.8. Lantern Exhibition illustrating a shooting expedition in (Olesmirgall INGE: gooaccsoosocosonce PAPERS. 16. On the Structure of the Skull in Chrysochloris. By R. Broom, M.D., D.Se., C.M.Z.S. (Plates I. & IT., eval Aliebdnemieabomes) l=3)8)) Annponaacoas acobebEceddcoss525505500001 17. Fly Investigations Reports.—I. Some Observations on the Life-History of the Blow-Fly and of the House- Fly, made from August to September, 1915, for the Zoological Society of London. By Wryirrep H. CYAIBSIDIOINS - Gocco ndedoucasqneascoosncosodoo emus podnbaddéaapbonb66 18. Fly Investigations Reports.—II. Trials for Catching, Repelling, and Exterminating Flies in Houses, made during the year 1915 for the Zoological Society of London. By Winirrep H. SAUNDERS .................. 19. Fly Investigations Reports.—II]. Investigations into Stable Manure to check the Breeding of House-Flies, made during the year 1915 for the Zoological Society of London. By Winitrrep H. SAUNDERS 20. Fly Investigations Reports.—IV. Some Enquiry mto the Question of Baits and Poisons for Flies, being a Report on the Experimental Work carried out during 1915 for the Zoological Society of London. By Ottve C. Lopcr 21. Note on the Sternum of a large Carinate Bird from the (2) Eocene of Southern Nigeria. By C. W. ANDREWS, D.Se., F.R.S., F.Z.8,, British Museum of Natural History. (Text-figures 1-4.) Soo CCC aes i Cee ur ar ace) a) Page 742 755 755 449 461 465 481 bo i) i) “N 30. Sit ~yV . On a Mammalian Mandible (Cimolestes cwtleri) from an Upper Cretaceous Formation in Alberta, Canada. By Arraur Sirs Woopwarp, LL.D., F.R.S., AVGIPAIS: (MLSs reieERee IE) seaqcognoB-. Boacsa sen ensseunes ._ A List of the Carabide (Coleoptera) collected in Chopersk District, Province of the Don Cossacks, South Russia. By V. Lursunix, Kiev, Russia ...... . A new Species of the Genus Platysma (Bon.) 'Tschi- tscherin, from’China. By V. Lursunrk, Kiev, Russia. . Notes on Species of the Genus Platysma (Coleoptera) from Australia. By V. Lursanrk, Kiev, Russia...... . On a new Lizard of the Genus Phrynosoma, recently living in the Society’s Gardens. By E.G. BouLeNcER, eA Se Curator or Reptiless (Plate Is) -c.--5--.-.- . Notes on the Development of the Starfishes Asterias glacialis O. F. M.; Cribrella oculata (Linck) Forbes ; Solaster endeca (Retzius) Forbes ; Stichaster roseus (O. F. M.) Sars. By James F. Geum, M.A., INTIS) IDES, JAS” (Reyes Uh ad i); BS aaa eeoe asec 28. On Cryptostome Beetles in the Cambridge University Museum of Zoology. By 8. Maurrs, B.A.(Cantab.), F.E.S., Imperial College of Science and Technology, London. (Text-figures 1 & 2.) 29, Notes on the Wasps of the Genus Pison, and some ‘allied Genera. By Rowtanp E. Turner, F.Z.S., The Early Development of Cucwmaria: Preliminary Account. By H. G. Newrs, A.R.CS., F-Z8., Demonstrator of Zoology at the Imperial College of Science and Technology. (Plates I. & II., and Text-figure 1.) Peer eee e tance eens srceeenesersersserereresresserere Studies on the Anoplura and Mallophaga, being a Report upon a Collection from the Mammals and Birds in the Society’s Gardens.— Part 1]. By Bruce F. Cummuines, British Museum of Natural History. Qlextenoumes: 1 3G.) eaeeenc aac ecco tans doesent: 053 567 591 631 val Page 32. On Two new Species of Cestodes belonging respectively to the Genera Linstowia and Cotugnia. By Frank K. Brpparp, M.A., D.Se.(Oxon.), F.R.S., F.Z.S8. (ext feumes 1A) e ac ncacaecemecie ese antcces: .suseeeeeete 695 33, Notes on a Collection of Heterocera made by Mr. W. Feather in British Hast Africa, 1911-13. By it -Colid ave pH Awonrre a ((Plateml\ i setts. eee 707 Alphabetical mist: ef (Contributors) Veb-dca.-22- eee eer eereee vil. Mee a asrzt sine ae shel oso's ogafestis vas Sind orbs sata ldote Deelais Setstele oe eae ere een xii ALPHABETICAL LIST OF THE CONTRIBUTORS, With References to the several Articles contributed by each. (1916, pp. 449-756.) ANDREWS, CHARLES W., D.Sc., F.R.S., F.Z.S. Note on the Sternum of a large Carinate Bird from the (?) Hocene of Southern Nigeria. (Text-figures 1-4.). See GOD MAN Hy Ii CAN Mute ects te essere laces mee ase Bepparp, Frank E., M.A., D.Sc. (Oxon.), F.R.S., F.Z.S. On Two new Species of Cestodes belonging respectively to the Genera Linstowia and Cotugnia. (Text-figures TA NE MAINS, roca Get UGRt ) Wa uch aaah Boutencer, Epwarp G., F.Z.S., Curator of Reptiles. Exhibition of living specimens of the African Lung- fishy (Protopteris) GT Mectems) | eens... ees ee eee eee On a new Lizard of the Genus Phrynosoma, recently living in the Society’s Gardens. (Plate I.).................. Page 519 54] 039 Vill Broom, Roprrt, M.D., D.Se., C.M.Z.S. On the Structure of the Skull in Chrysochloris. (Platesmigd WE vandi Mextattomresil 3!) mens.) ece cece RS 22 A GrOD NVAINGS HY a8) oj QUAUNT ES yey ena rcs aceye cca sh oy ee nee CumMINGS, Bruce F. Studies on the Anoplura and Mallophaga, being a Report upon a Collection from the Mammals and Birds in the Society’s Gardens.—Part IT. (Text-figures 1—-36.). Ezra, ALFRED, F.Z.S. Exhibition of living specimens of three rare Lutino PAAR CTS hse cvecciencc RS terd Est TTT reas ees Lantern Exhibition illustrating a Hoole, expedition TU OLS TOUR G22 Leas Ss Hee a eA OSB anaue Fawcett, Lt.-Col. J. Matcou. Notes on a Collection of Heterocera made by Mr. W. Feather in British East Africa, 1911-13. (Plate I.) Gapow, Hans, M.A., Ph.D., F.R.S. See Gopman, F. D. GEMMILL, JAMES F., M.A., M.D., D.Sc., F.Z.S. Notes on the Development of the Starfishes dsterias glacialis O. F. M.; Cribrella oculata (Linck) Forbes ; Solaster endeca (Retzius) Forbes; Stichaster roseus (OEE) Sansom (Blates 1. 10))\ eaters ener ae Gopman, F. DuCans, D.C.L., F.R.S., F.Z.8., and others. Résumé of a Discussion on the results published in the ‘ Biologia Centrali-Americana,’ with special reference to the zoo-geographical relations between America and NGL aYeT ELM eee ON Hollen apace ech uo 00) ce NOR Page A449 541 643 ~ i=) bs | 541 1x Hutcuinson, The Rev. H. N., M.A., F.Z.8. Exhibition of a model of the Dinosaur, Diplodocus CUT NECUC Umrraerarra HX ja trsiet deer ees ate see res carte ata disse wrehstarers Lopes, Miss Oxtve C. Fly Investigations Reports.—IV. Some Enquiry into the Question of Baits and Poisons for Flies, being a Report on the Experimental Work carried out during 1915 for the Zoological Society of London .................. LutsHnik, V. A List of the Carabide (Coleoptera) collected in Chopersk District, Province of the Don Cossacks, South BOMERSUIS SE pmmoet tree te kre Perey VAT RE ecg ea AO MAIR RS) Pl A new Species of the Genus Platysma (Bon.) Tschi- Lecherimerronmn hima wer se seme codices anon een cca ane nana: ae Notes on Species of the Genus Platysma (Coleoptera) TG RONT OIA NAO ISH DY CoH Olt We” eae AIREY i mere en ee ete POROUS dete A otc ee MacBripg, .E. W., D.Sc., F.B.S., V.P.Z.S8. See Gopman, Hi CAN Her ec castiah os tio cance muah Rete een een Mauuik, 8., B.A.(Cantab.), F.E.S. On Cryptostome Beetles in the Cambridge University Museum of Zoology. (Text-figures 1 & 2.) ............... MircHett, P. Cuaumurs, M.A., D.Se., LL.D., F.R.S., F.Z.8., Secretary to the Society. Report on the Additions to the Society's Menagerie during the months of May, June, July, August, and rSepremiben lO UGii7 5 ic ntanmmammes ttc cs Laae nein ree aac can) Report on the Additions to the Society’s Menagerie dure the month of October ING y 2 saan eacccde seen Proc. Zoou. Soc.—1916, b 539 481 529 D3 Or 541 567 xX Newru, Werserr G., A.R.CS., F.Z.S. The Karly Development of Cucuwmaria: Preliminary Account. (Plates I. & IL, and Text-figure 1.) ree ese ere eee Pocock, Recinatp J., F.R.S., F.LS., F.Z.8., Curator of Mammals. Lantern Exhibition of some new and little-known cutaneous scent-glands in Mammals. (Text-figures Reean, C. Tats, M.A., F.Z.S. Exhibition of a rare Fish, Centrolophus britannicus (Giinth.), and of a Silver Ling (Molva elongata)............ MSAD (COV LES IDOI hn cobtocss sossonndensseossecdseecin Roruscuitp, Lord, D.Sc., F.R.S., F.Z.8. See GopMAN, 18, IDUKCOINSI eases ouces Dak Ree OSs att ae 2s ee RO SaunpDERS, Miss WINIFRED H. Fly Investigation Reports :— I. Some Observations on the Life-History of the Blow-Fly and of the House-Fly, made from August to September, 1915, for the Zoological Society of London. II. Trials for Catching, Repelling, and Exterminating Flies in Houses, made during the year 1915 for the Zoological) Society.of Wondours)-./5...2 eee ee III. Investigations into Stable Manure to check the Breeding of House-Flies, made during the year 1915 tor thepZoologicals Sociebyxor london sees ee eee Scutarer, Wituiam L., M.A., F.Z.8. See Gopman, F. JOGO. sooqadar Adda den Menara eden in occ wenadeeiabencaee Page 631 or oo ‘2 O41 AG] 465 ~ 3xil Page Sera-Smire, Davin, F.Z.S., Curator of Birds. Exhibition of Birds’ Eggs laid in the Society’s Grated CIS meme Meee see as cess oes a aimee sctotsjniamals sabes ojciaie aietaiavs ahs 741 Exhibition of skins of various nestling birds ............ 742 SHuFELDT, Ropert W., M.D., C.M.Z.S. Notes on Albinism in American Animals ............... 540 TurNER, Rowtanp E., F.Z.S., F.E.S. Notes on the Wasps of the Genus Pison, and some alle de Gre we raion, aecteryen or 47 oan Seas erence rasta felts e 591 Woopwarpb, ArtrHur Smiru, LL.D., F.R.S., V.P.Z.S. On a Mammalian Mandible (Cimolestes cutlerr) from an Upper Cretaceous Formation in Alberta, Canada. (A Mes qigi Tiedt Tags: 31h) | Saat corm ane penaronencnncer ae ane. a ero eepaeo nr ben: 525 IS Cen COD NEANG Ey. 00 1D) UC AINIE Olea aang taco ete ties vanteioeeitan ce 541 EN DEX: 1916.—Pages 449-756. [New names in clarendon type. Systematic references in italics. (z.8.L.) indicates additions to the Society’s Menagerie. | Acadra rectistriaria, 726. | Anatoecus difficilis, sp. n., 654, Acontia malve, 712. 659. Afyocera brevivitta, 710. Jerrugineus: structure (Figs. 7, Agathodes muscivalis, 739. | 11), 657. Agonia, 571. icterodes: structure (Figs. 7, 10, cherapunjiensis, sp. n. (Fig. 2), 12), 655. Oijow obtusus: structure (Figs. 7, 11), —— wallacei, d74. 658. (Ekagonia) krishna, sp. n. Anisodactylus (Hexatrichus) peciloides (Big. 1), 571. pseudoeneus, 531. Agonum gracilipes, 530. Anisodera, 569. -—— impressum, 530. Anisoderopsis, gen. n., 570. sexpunctatum, 530. Anobostra radialis, 735. —— (Idiochroma) dorsale, 530. Anomis sabulifera, 713. Akantaka, gen. n., 583. Anticarsia irrorata, 728. rufoornata amazonensis, 4/wa ‘ettensis, 714. var. n., 583. _ Apisa canescens, 708. Alyson, 598. Arctomys monax: albino, 540. —.- ater, 619. Asphalisia tuta, 587. Amara enea, 530. Aspidomorpha amabilis, 585. stmulata, 530. —— (Bradytus) apricaria, 530. assimilis, O85. australasie, 584. —— ( ) consularis, 530. cincta, 535. —— (——_) fulva, 530. —— duleicula, 586s. —— (Celia) ingenua, 530. —— furcata, 585. —— (Triena) plebeja, 530. inquinata, 584. Amyna octo, 712. | —— micans, 586. punctum, 712. Anacassis cribruin, 581. miliaris, 584. natalensis, 585;. Anatoecus, gen. n., 659. —— punctum, 584. ——— brunneiceps: structure (Fig. 8), | —— quinquefasciata, 585;. 658. —— st. crucis, 586. D —— cygii: structure (Figs. 9, 11), 658. tecta, 584. , X1V Asterias glacialis : development (PI. I.), 553. Athetis horus, sp. n. (Pl. I. fig. 36), 710. | —— pentheus, sp. n. (Pl. I. fig. 27), late Audea melanoplaga, 713. Aulacophilus, 591. eumenoides, 591. —— jansoni, sp. n., 592. | vespoides, 592, | AVES: Gigantornis eaglesomei: (fossil) structure: systematic, 519. Hggs laid in the Society’s Gardens, 741. Paleornis, yellow variety, 741. Nestlings from the Society’s Gardens, 742. Balearica regulorum (z. 8. L.), 789. Batonota, 582. Bembidion illigeri, 529. | (Notaphus) semipunctatum, 529. —— (Peryphus) andree, 529. —— ( ) ustulatum, 529. (Philochthus) biguitatum, 529. Boarmia octomaculata, 729. perse, sp. n. (PI. I. fig. 18), 728. subalbata, 729. Botryonopa grandis, 569. spectabilis, 569. Brachinus incertus, 531, psophia, 531. Brevipecten clearchus, sp. n. e (PI. I. fig. 31), 723. cornuta, 723. Calliphora erythrocephala: develop- ment, ethology, bait, etc., 461-518. vomitoria: baits, etc., 482-518. Calosoma sycophanta, 529. (Charmosta) denticolle, 529. Calospiza aurulenta (z.s.1.), 755. lunigera (z. 8. L.), 759. | Calpe cerne, sp. n. (Pl. I. fig. 22), 723. Caimptogramma natalata, 730. INDEX. Canistra irrorata, 579. Capena, gen. n., 732. Carabus granulatus, 529. ei Ol. —_— chalyhea, d80. Cassida capensis, —— cincta, 585. cribrum, 581. decemguttata, 580. decipiens, 587. discoides, 580, dorsata, 586. JSarinosa, 587. Jasciata, 577. —— furcata, 585, —— micans, 585, 586. miliaris, 584. nervosa, 581. —— ngrovittata, 586. normalis, 581. octopunctata, 577. pantherina, 580. plecta, 589. punctuin, 584: quadrimaculata, 587. quinguefasciata, 585. st. crucis, 586, — scalaris, 588, —— similis, 579. —— spinifex, 581. strigata, 579. | —— suturalis, 582. tigrina, O86. turrigera, 587. variolosa, 582. Catephia imesonephele, 721. poliochroa, 719. —— pyramidalis, 721. sciras, sp. n. (Pl. I. fig. 719. scylla, sp. n. (Pl. I. fig. 720. serapis, sp. n. (PI. I. fig. 721. sospita, sp. n. (Pl. I. fig. 32), 720: Centrolophus britannicus, 589. pompilus, 540. Cephaloleia, 568. cvimia, 569, INDEX. Cephaloleia nigricornis, 568. proxima, 568. Cercocebus aterrimus (z. 8. L.), 739. Cercopithecus erythrotis (z.8. L.), 739. Cervus hanglu (z. s. L.), 739. Chadisra nubifera, 726. Chalepus (Chalepus) 569. Charidotis abrupta, 589. Chelymorpha marginata, 582. variolosa, 582. Chilena donaldsoni, 733. Chirida cruciata, 587. scalaris, 588. Chlenius (Chleniellus) nitidulus, 529. (Chienites) spoliatus longipennis, 529. Chloephaga meianoptera (z. 8. L.), 740. Chrysemys mobiliensis (z. 8. L.), 739. Chrysochloris asiatica: skull-structure (Fig. 1 a), 450. hottentota: skull-structure (Pls. I., 10.; Figs. 2, 3), 449. Cicindela germanica, 529. maritima sahlbergi, 529. Cidaria asteria, sp. un. (Pl. I. fig. 7), 729. procne, sp. n. (Pl. I. fig. 8), 730. Cimolestes cutleri, sp. n.: (fossil) structure (Fig. 1), 525. Cleora proximaria albescens, 728. -Clivina collaris, 529. CoLEnorTEra : Hispine, Cassidinz : systematic, 567. Conchyloctenia, 586. tigrina, 586. Connocheetes albojubatus (z.s. u.), 740. Coptocycla balyt, 588. circumdata, 589. cruciata, 587. flavoplagiata, 588. gemina, 89. judaica, 589. —— placida, 588. —— plecta, 589. scalaris, 588. Coronocanthus, 586. Corsyra fusula, 531. sanguinicoll as XV Cortyta balnearia, ale fasciolata, 716. —— minyas, sp. n., 715. griseacea, form. n., 716. remigiana, 715. vetusta, 715. Cotugnia margareta, sp. n., struc- ture (Figs. 1-4), 700. Cribrella oculata: development (PI. Il. figs. 6-10), 554. Ctenochira gemina, 589. plecta, 589. Ctenusa rectilinea, sp.n., 715. > psamatha, form. n. (Pl. I. fig, 21), 714. Cucumaria normani: development (Pls. L., II. figs. 1-5, 7-9), 631. saxicola: development (Pls. I., IT figs. 6, 10-15), 631. Cymindis picta, 531. Cynomis: albino, 541. Cyon alpinus (z. s. u.), 740. Dactylispa bipartita, 575. | —— fulvipes, 575. —— leptacantha, 576. longicuspis, 575. malayana, 575. soror, 576. —— spinosa, 576. trifida, 576. Dattinia aurora, sp. n. (Pl. I. fig. 29) Noa —— orion, sp. n. (Pl. I. fig. 30), 735. | —— perstrigata tithonus, form. n. (PL. L. fig. 23), 734. Deilemera glauce, sp. n. (Pl. I. raise, II)), 708). Dendrohyrax dorsalis: (Figs. 7, 8), 749. DivELOPMENT. Insecta: House-Flies, 461-518. EcuinopErMA: Starfishes, 553; Cu- cumaria, 631. _ Diachromus germanus, 531. | Diomedea_ exulans: | (Hig. 4), 528. | Diota fasciata, 710. scent-gland fossil sternum xXV1 Diplodocus earnegiei: structure, 539. Dolichotoma colliculus, 579. strigata, 579. Dolichus halensis, 529. Dollabella, ven. n., 675. 675. Duomitus pindarus, sp. n., 733. EcHInNoDERMA. Development of some Starfishes, 553 ; Cucumaria : development, 651. Echoma normalis, 581. Ekagonia, subgen. n., 571. Elephas maximus: scent-gland (Figs. 9-11), 750. Epactius limbatus, 529. Epistictia matronula, 578. Equus kiang (z. s. u.), 740. Eistigmene griseata, 709. Erwouoey. Insecta: House-Flies, 461-518. Eublemma admota, 712. Eucestia neddaria, 729. Euphiwsa harmonica, 714. —— hermione, sp. n. (Pl. I. fig. 3), 714. — ochreata, form. n., 714. Eupsychortyx leucopugon (z. s. L.), 740. Lutelia discistriga, 713. Fannia canicularis; 518. sealaris: baits, ete., 482-518. Felis leo (z. s. u.), 740. viverrina (z. s.L.), 740. Pilides costivitralis, 735. Fodina pentagonalis, 725. Fulvaria striata, gen. et sp. n. (PI. 1. fig. 10), 728, Galactomoia berenice, gen. et sp. Me CPM, Je Laker, NS), NG, ALF, GEOGRAPHICAL. Zoo-geographical relations between America and Africa, 541. testudinarius : structure (Fig. 2), baits, etc., 482— INDEX. MammMatta : sil) from Canada, 525. Avus: Gigantornis eaglesomei (fossil) from Nigeria, 519. ReprintA: Phrynosoma brevicornis, Cimolestes cutleri (fos- from Texas, 537. Insecta: Coleoptera: Russia, China, Australia, 529-536; Pison, ete., distribution, 591; Heterocera from B. HE. Africa, 707. Giaura astarte, sp. n. (PI. I. fig. 6), (ale Gigantornis eaglesomei, gen. et sp. n. (fossil) structure (Figs. 1-3), 519. Giria bubastis, gen. et sp. n. (Pl. I. fic. 14), 717, 718. Girpa circumdata, 729. Glyphodes indica, 739. sinuata, 735. Gonophora chalybeata, 574. hemorrhoidalis var. undulata, 674. wallacet, STA. (Lachnispa) modiglianit, 575. Gracilodes caffra, 725. Grammodes stolida, 715. Harpalus eneus, 530. psittaceus, 530. smaragdinus, 531. — (Acardystus) rufus, 531. — (Actephilus) picipennis, 531. —— (Amblystus) latus, 531. —— (Harpalobius) froelichi, 531. —— ( ——) hirtipes, 5381. ——- (Microderes) brachypus, 531. —— (Ophonus) azureus, 580. ) sabulicola, 530. —— (Pardileus) calceatus, 530. —~ (Pheuginus) serripes, 531. ) servus, 531. -—— (Pseudophenus) pubescens, 580. Hemicentetes: occiput (Fig. 1 B), 452. Heterorachis idmon, sp. n. (Pl. I. fig. 9), 731. Himatidium capense, 577. GR Tee re comptwimn, d7 Jasciatuin, 9 FS 7. 17 INDEX. Hispa bipartita, 575. - fabricii, 576. —— fulvipes, 575. — hemorrhoidalis, 574. == loypsimusn. BHT leptacantha, 576. longicuspis, 575. sanguinicollis, 569. spinosa, 576. | Flispella atra, 579. FHispida trifida, 576. Mispopria grandis, 569. Hybosineta turrigera, 587. Hylobates muelleri (z. s. u.), 741. | Hypena derasalis, 720. Hypodoxa erebusata, 732. Ibidzcus, gen. n., 663. | —— flavus, sp. n., structure (Figs. | 16-21), 665. | platalee, structure (Figs. 15, 21), | 664. | Idzea niobe, sp, n., 730. Imatidium fasciatum, 577. Induna albida, 731. | —- lactea, 731. InsmcTA. House-Fly Investigations: develop- ment, ethology; baits, poisons, ete., 461-518; Coleoptera: syste- matic, structure, 529-536; Hyme- noptera: Pison, etc., systematic, 591; Anoplura, Mallophaga : structure, systematic, 643; Hete- rocera from B. H. Africa, system- atic, 707. Laccoptera quadrimacutata, 587. Lacydes gracilis, 709. Lama vicuna: scent-glands (Fig. 5), TAG. Lebedodes nevius, sp. n. (Pl. I. fig, 24), 732. Lecasia othello, gen. et (PII. fig. 4), 724. Leocyma candace, sp. n., 712. Lepidosiren paradoxa (z. s. u.), 740. Linstowia lemuris, sp. n.: struc- | ture, 695. sp. n. Proc. Zoou. Soc.—1916, No. LII. XVil Lipeurus antitogus, 682. burnetti : structure (Fig. 27), 682. JSorjiculatus : structure (Figs. 48— 35), 682. heterogrammicus, 681. jejunus : structure (Fig. 26), 680. secretarius, 682. —-~ subsiqnatus, 680. variabilis, 682. Lissochila, 570. Loxodonta africana: (Hig. 11), 750. Lucilia cesar: development, baits, ete.. 461-518. Lygropia amyntusalis, 735. —— pasithea, sp, n. (Pl. I. fig. 16), 735. Lyncestis amphix, 721. unilinea, 722. scent-gland MAMMALIA . Chrysochloris hottentota: skull- structure, 449; Cimolestes cutleri (fossil): structure, systematic, 525 ; scent-glands in various Mammals : structure, 742. Maurilia arcuata, 712. Mecyna polygonalis, 735. Melasina recondita, '737- Melittia hematopis, sp. n. (Fl. I. fig. 1), 736. Mesomphalia adspersa, 580. chalybea, 580. cribrum, 581. decemguttata, 580. vulnerata, 580. ab. subpustulata, 580. Metriona circumdata, 589. flavoplagiata, 588. gudaica, 589. scalaris, 588. Mola mola: ethology, 540. Molva elongata: exhibited, 540. Musca domestica: development, baits, ete., 462-518. Neomphalia adspersa, 580. vulnerata, S80. Neophilopterus, gen. n., 660. 52 XVilll Neophilopterus incompletus: structure (Figs. 13, 21), 660. tricolor: structure (Fig. 14), 663. Nephridia, 593. canthopus, 621, Nesopelia galapagoensis (z. s. L.), 739. Notatragus melanotis : (Fig. 6), 749. scent-glands Odontestra albivitta, 710. Oma, 578. denticula krishna, var. n., 579. Omaspides clathrata, 582. Omoplata normalis, 582. Onchocephala quadriloba, 571. Ortholitha monotecta, 729. Orycteropus capensis : (Fig. 1), 742. Otis tarda (z. s. .), 739. Oxynodera colliculus, 579. trrorata, 579. scent-glands Paleornis cyanocephalus: yellow var., 7AL. nepalensis: yellow var., 741. torquatus: yellow var., 741. Pandesma anysa, 716. Paraceramius, 593. koreensis, 617. | Parapison, 598. agilis, 616. —— frenchi, 601. obliteratus, 616. ruficornis, 600. rufipes, 616. Pectinopygus pullatus : (Fig. 36), 691. Pericallia hecate, fig. 19), 709. Pericyma umbrina, 715. structure ap (Blea || Peridela berengaria, sp.n.(Pl.I. | fig. 26), ‘727. | novaria, sp. n. 721. Phalera lavinia, sp. n. fig. 20), 725. (Pl. I. fig. 17), | (Es INDEX. Philopterus acanthus: structure (Fig. 24), 677. asturinus: structure (Figs. 5, 6), 651. athene: structure, 645. brunneiceps, 653. ceblebrachys : structure (Figs. 2, 4), 645. communis, 676. cursor: structure (Fig. 1), 645. eygni, 653. Serrugineus, 653. —-~ humeralis : 674. icterodes, 653. lari, 677. leontodon, 677. - obtusus, 653. pictus, 651. —— platystomus, 650. rostratus: structure (Hig. 3), 644. semi-signatus, 676. structure (Fig. 22 Phiyctenodes castalis, 735. Phrynosoma brevicornis, sp. n. (CEIG Ils), Bai 3 (CA 5 108) 78), Physonota dlutacea, 582. , var. cyrtodes, 582. Phytometra chalcytes, 716. Pionea nigripunctalis, sp. n. (PI. I. fig. 2), 736. —— xanthalis, sp. n., 736. Piophila casei: baits, ete.. 482-518. Piscus : Centrolophus britannicus : exhibited, 539; Molva elongata: exhibited, 540; Mola mola: ethology, 540. Pison, 593. algiricum, 620. —— allonymui, 622. appendiculatum, 619. — arcolatus, 629. argentatus, 619. — ashmeadi, nom. n., 625. assimile, 620. ater, 619. atrum, 620. auratus, 614. aureofaciale, 628. Pison aureopilosus, 624. aureosericewm, 614. aurifex, 612. auriventre, 608. australis, 607. basalis, 615. cameronii, 628. chilensis, 629. clypeatus, 623. collare, 627. conformis, 628. congener, sp. n., 607. constrictum, 627. convexifrons, 629. eressoni, 628. decipiens, 612. denticeps, 622. dimidiatus, 603. dives, sp. n., 608. erythrocerus, 600. eRe de ee ee ee erythropus, 616. —— exornatum, sp. n., 614. —— exultans, sp. n., 615. —- fabricator, 625. —— fasciatum, 628. --—— fasciatus, 620. fenestratus, 603. —— festivus, 603. —- fraterculus, sp. n., 610. —— fuscipalpe, 619. -—— fuscipennis, 606. —— glabrum, 626. —— hospes, 628. —— ignavum, 601. —— impunctatum, 626. -—— inzequale, sp. n., 6238. —— inconspicuum, sp. n., 612. — infumatum, 605. —— insigne, 621. —— insulure st. priscum, 602. —— insularis, 626. —— iridipennis, 622, 626. —— javanus, 625. jurini, 619. kohlit, 624. —--— levis, 628. lagune, 625. —— lutescens, sp. n., 604. INDEX. Pison maculipennis, 628. xix -—— mandibulatum, sp. n., 605. —— marginatus, 609. —— melanocephalum, 601. —— meridionale, sp. n., 611. —— montanus, 621. —— morosus, 626. —— nitidus, 603, 627. obliquus, 604. —— obscurus, 621. orientale, 625. pallidipalpis, 625. —— paraensis, 628. pelletier’, 603. perplexus, 605. priscum, 602. —— pruinosus, 607. —— pulchrinum, sp. n., 613. punctifrons, 625. punctulatum, 608. —— punctulatus, 625. —— rechingeri, 627. regalis, 621. ——~ rhodesianum, 622. —— rificornis, 602. — rufipes, 602. —— rugosus, 619. —- scabrum, 608. —— separatus, 610. —— sericewm, 620. —— simillimus, 609. —— speculare, 624. —— spinole, 607. —— strenuum, sp. n., 606. strictifrons, 626. striolatum, 625. suspicax, 620. suspictosus, 629. tahitense, 627. tasmanicus, 607. tibialis, 610. transvaalensis, 622. —— tuberculatus, 626. variicornis, 629. vestitus, 613. virosum, 602. westwoodi, 604. — wollastoni, sp. n., 624. ».@.4 Pison xanthopus, 621. (Aulacophilus) difficile, 599. -—— ( —— (Parapison) aberrans, 601. —— ( ) caliginosum, 600. — _ ( ) crasstcorne, 617. —— ( ) erythrogastrum, 599. —— (——) exclusum, 601. — ( ) ésolatwm, 618. —— (—) noctulum, 600. —— ( ) pertinax, 599. —— ( ) rothneyt, 617. —— (——) simulans, 600. —— (——) tenebroswm, 600. —— (Prisonitus) argentatus, 619. ——— ( ) ruficornis, 602. —— (——_) rufipes, 602. —— (-——) rugosus, 619. —— (Pisonoides) aberrans, 601. —— (-——) agilis, 616. ) icarioides, 599. —— ( ) brown, 617. —_ ( ) caliginosum, 600. —— ( ) difficile, 599. —— (+—) erythrocerus, 600. —— ( ) erythropus, 616. — ( ) exclusum, 601. —— ( ) icarioides, 599, ) koreensis, 617. ) noctulum, 600. ) obliteratus, 616. ) pertinax, 599. ) semulans, 600. —— ( ) tenebrosum, 600. —— (==) Chivers Gin, me, (GILT, —— (——) isolatum, 618. —— (——) rothneys; 617. ( Pisonitus, 593. argenteus, 619. Pisonoides, 598. brownt, 617. Pisonopsis anomala, 62%), argentinus, 629. birkmanni, 629. elypeata, 629. pilosus, 629. treangularis, 629. Pisum, 593- allonymum, 622. ) testaceipes, sp. n., 618. INDEX, Pisum constrictum, 627. G29} Platypria echidna, 576. Pitthea triplagiata, 577. Platysma mandzhuricum, sp. n., 533. nigrum, 580. —— hystrix, (Coronocanthus) quadrisuleatum, 536. —— (——) sulcatum, 586. —— (Macropecilus) sericeum, 530. (Melanius) anthracinum, 580. —— (Sarticus) habitans : structure, 535. —— ( ) obesulum: structure, 535. —-- (-—) rockhamptoniense : ture, 535. ( ) saphyreomarginatum: struc- ture, 535. — (Sogines) punctulatum, 530. Plecoptera polymorpha, 722. —— —— polymnia, form. n., 722. Pecilaspis decempustulata, 581. nervosa, O81. — pantherina, 580. —— ——, ab. duodectmmaculata, 581. Polydesma colutrix, 716. Poppezea sabina, gen. et sp. n. (PI. I. fig. 5), 722: Potamocheerus chceropotaimus (z. s. L.), 741: scent-glands (Fig. 4), 745. Prasinocyma wnipuncta, 731. struc- Prenea strigata, 579. Prioptera decempustulata, 578. octopunctata, 577. - westermanni, 577. Problepsis vestalis, 731. Proruaca recurrens, 719. Protoealliphora grenlandica: baits, ete., 482. Protopterus annectens (z. s. L.), 589. Pseudomesomphalia chalybea, 580. decemguttata, 580. discoides, 580. Pseudonysson, 593. Jasciatus, 620. Psophia crepitans (z. s. u.), 740. viridis (z. s. L.), 740. Pyrausta incoloralis, 736. — sthenialis, 736. INDEX, Rangifer tarandus (2. s. t.), 739. Remigiodes remigina, 715, REpTiLtA. Phrynosoma brevicornis: systematic, 537. Rhabdometra plectaria, 730. Rhea americana (z. s, 1.), 740. Ehococassis flavoplagiata, 588. Rhodometra sacraria, 730. Rhodospiza obsoleta (z. s. 1), 741. Ttisoba obstructa, 711. Sarcophaga carnaria: baits, etc., 482- | 518. Sarticus : strueture, 535. Scrancia amata, sp. n. (Pl. I. fig. 25) io: Secusio strigata, 709. Selagdia narses, sp. n. (PI. I. fig.25), | 732. Selenis nebulosa, 581. spinifex, 581. Semiothisa crassilimbaria, (26. lataria, 727. obliquilineata, 727. semialbida, 727. Silana farinosa, 587. Solaster endeca: development (Pl. EI. fig. 11), 560. Stauropus critobulus, sp. n. (Pl. [. fig. 12), 726. Steropinus, subgen. n., 533. Stethispa eonfusa, 569. Stichaster roseus: development, 562. STRUCTURE. Mammatta: Chrysochloris hottentota (skull), 449; Cimolestes cutleri (fossil), 525; Cutaneous glands, 742. Avus: Gigantornis eaglesomea (fossil), 519. Tysucra: Platysina (punctation), 5385; | Anoplana, Mallophaga, 643. Proc. Zoou, Soc.—1916, No, LILI, seent- | Xxl Struthiolipeurus, gen. n., 679. asymmetricus:; structure (Fig. 25), 79. : Sus scrofa: scent-glands (Figs. 2, 3), 145; (@. s. u.), 755. Tachybulus, 593. —— niger, 620. Tarache epalinoides, 712. psaliphora, 712. —~ winbrigera, 712. Taranga, 593. dubia, 607. Taveta syrinx, gen. et sp. n. (PI. I. fig. 13), 718, 719. Tephrina butaria, 728. -——- deeraria, 728, Terepene carolina: variation, 541. Thlaspida formose, 588. Thlaspidomorpha balyi, 588. Thlaspidosoma dohrni, 588. Timora fissifascia, 710. leucosticta, 710. Framinda viridaria, 731. Trikona, gen. n., 583. Ursus horribilis (z. s. 1.), 740. VARIATION. ManManra,ete.: Albinism in Ameri- can animals, 540. Aves: Paleeornis (yellow var.), 741. VURMIDEA. Linstowia, Cotugnia : structure, 695. Vulpes lagopus (z. s. u.), 740. —-— zerda (z. 8. u.), 740. systematic, ZLamarada secutaria, 728. Zinckenia fascialis, 735. or co ‘PRINTED BY TAYLOR AND-FRA RED LION COURT, FLEET STREET. eee wg PRD PROCEEDINGS OF THE GENERAL MEETINGS FOR SCIENTIFIC BUSINESS OF THE ZOOLOGICAL SOCIETY OF LONDON. 1916. a PART III. conTaininc Paces 449 ro 551, witH 3 PLATES AND 8 TEXT-FIGURES. PRINTED FOR THE SOCIETY, SOLD AT ITS HOUSE IN REGENT’S PARK. LONDON: i MESSRS. LONGMANS, GREEN, AND CO., | PATERNOSTER ROW. SEPTEMBER 1916. | Orn [Price Twelve Shillings. | hd bist OF. CONTENTS, 1916, Part III. (pp. 449-551), EXHIBITIONS AND NOTICKS. Page Mr. E. G. Boutzneer, F.Z.8., Curator of Reptiles. Exhibition of living specimens of the African Lungfish (Protopterus annectens) ........++escerseecsees was oneteraye on eo BS The Rey. H. N. Hurcninson, M.A., F.Z.8. Exhibition of a model of the Dinosaur, IDEAL OCT ROOT LATE UOT RELA oti OMIA S ab ocd OO BA oeniC GOD Ao ceC On casei oer 6 539 Mr. C. Tare Reean, M.A., F.Z.8. Exhibition of a rare Fish, Centrolophus britannicus (Ginth.) and of a Silver Ling (Molva elongata) ......eeesssssee etches Re fesetuete etait 539 Dr. R. W. Suuraipt, C.M.Z.8. Notes on Albinism in American Animals °............ 540 Résumé of a Discussion on the results published in the ‘ Biologia Centrali-Americana,’ with special reference to the zoo-geographical relations between America and BASED TCA Ze tec ie ia eieie Seale ee cele Rate ae ee Cone eR aT eee A Eee iat ee Race Hp Sanic 541 PAPERS. 16. On the Structure of the Skull in Chrysochloris. By R. Broom, M.D., C.M.ZS. (Plates 1, 10. ;and “Next-fowres dome swe cat blew sre aie < nie cole «ieee ened) ete 17. Fly Investigations Reports.—I. Some Observations on the Life-History of the Blow-Fly and of the House-Fly, made from August to September, 1915, for the Zoological Society of London, By Wintrrep H. SaunpERs .........-++-.++---. 461 Contents continued on page 3 of Wrapper. 4s ID IROOM, JP, Il S Mx. Pmx. PN.EC 1 R.B., DEL. MENPES PRESS, WATFORD. SIU OS Chix SOCHLORIS HOLLEN hOmA: ZS, Wie, IROOM. Jel, Wl. MENPES PRESS, WATFORD. SKULL Ok ChIRYSOCHLORIS OnmEN TOA: R.B., DEL. nominees ar anian Wistifysem © ensonle ITO AN j } owe : ( FEB LT W2U } SY w | RA PROCEE DINGS onal MBe> OF TITE eens GENERAL MEETINGS FOR SCIENTIFIC BUSINESS . OF THEA * ZOOLOGICAL SOCIETY OF LONDON. PAPERS. 16. On the Structure of the Skull in Chrysochloris. By R. Broom, M.D., D.Sec., C.M.Z.8. [Received April 25, 1916: Read May 23, 1916. ] (Plates I., I1.* and Text-figures 1-3.) The examination of the Organ of Jacobson and the nasal cartilages in the Cape Golden Mole, the results of which I recently communicated to the Society t, showed that Chryso- chloris is not, as has been generally held, an ally of Centetes, nor indeed apparently of any of the small mammals which are usually grouped together as ‘“Insectivora,” and that the Golden Moles ought to be placed in an Order by themselves to which Dobson’s name of Chrysochloridea may be applied. As the type is so unique, it seemed worth while to make a careful study of the skull. Hitherto very little has been known of the skull of Chrysochloris. Though the animal is not at all rare, it is not often seen unless specially looked for, and probably only a very small proportion of the inhabitants of South Africa have ever seen one, except perhaps in a Museum. Most of the larger museums have a number of skins and skulls, but, as is the case with many small mammals, the cranial bones in the adult are so completely * For explanation of the Plates see p. 458. 7 P.Z.S. 1915, p. 347. Proc. Zoou. Soc.—1916, No. XXXII. 32 450 DR. R. BROOM ON THE anchylosed that it is impossible to do much more than speculate on the structure. Dobson figures a nearly adult skull of one species which reveals some sutures, but only a very young skull could clear up most of the points in doubt, and until recently, so far as I am aware, no very young specimens have ever been obtained by any scientist. W hile residing at Stellenbosch, though I collected many adult Chrysochloris, I only succeeded in setting about half a dozen young specimens, and unfortunately I have no specimens which would show the early condition of the chondrocranium. Still, the skull of the newly-born Chrysochloris hottentota, which I have examined, is in such an interesting stage of development that it reveals clearly the nature of practically all the cartilaginous as well as the osseous elements. Prof. J. P. Hill has very kindly had the head of the young. Chrysochloris hottentota sectioned for me by his laboratory assistant, Mr. F. Pittock, and the facts revealed in the sections have been confirmed and amplified by the study of a prepared skull of a shghtly older Chrysochloris asiatica. Skull of young Chrysochloris asiatica. The skull measures in greatest length 13°5 mm., and the basal length from the basioccipital to the premaxilla is 10°7 mm. The maximum width is 9°5 mm., and height 7-5 mm. When viewed from above, the large size of the brain region, the narrowed orbital, and the short narrowed facial region give the skull a shght superficial resemblance to that of a small bird, The premaxille are small, irregularly squar e-shaped bones which articulate by one side with the maxille and by another with the nasals. They contain the already calcified points of the three milk-incisors. ‘The premaxilla forms a distinct portion of the hard palate behind the incisors and in front of the anterior palatine foramina. The maxilla forms the greater part of the hard palate. Already the milk-canine, the three milk-molavs, and the first molar are partly calcified. The maxilla forms about twice as large a part of the side of the snout as does the premaxilla. There is a large foramen for the large manillary branch of the Vth nerve. The most remarkable thing about the maxilla is the way in which it forms the jugal arch. There is no trace of a jugal bone, and the whole arch is formed by a backward process of the maxilla which runs back as far as the glenoid cavity and articulates with the squamosal, The nasals are relatively short. They measure 4°5 mm. in length, and the greatest measurement across the two is at the upper end, where it is 3 mm. In front the transverse measure- ment is 2 mm. The lacrimal is very small and cannot be satisfactorily made out in this skull, though it can be detected in the sections of the earlier stage. SKULL OF CHRYSOCHLORIS. 451] The frontal is relatively small, being only about half the size of the parietal. There is a distinct orbital constriction. The large parietals each form nearly a quarter of the upper surface of the skull. Each articulates with its neighbour, and with the frontal, squamosal, tabular, and supraoccipital. The squamosal is of moderate size but very peculiarly shaped. The upper squamous portion is much reduced, and behind the glenoid cavity there is a long posterior descending process which covers the petrosal and extends as far as the exoccipital. In front the squamosal articulates with the maxilla, but forms practically no part of the zygoma. On the base of the skull the palatines, pterygoids, tympanics, auditory ossicles, vomer, basisphenoid, and _ basioccipital and exoccipital can be readily made out, but their relations and structure can be better understood from the reconstruction of the earlier stage. Text-figure 1. \| I / 1) Wl, \\ ANAL \\Y A. Occiput of young Chrysochloris asiatica.- X 4. B. Occiput of young Hemicentetes sp. X 3°5. For explanation of lettering see p. 458. It is necessary, however, to consider more fully the structure of the occiput, as it is unlike that of any other known mammal. When the skull is examined posteriorly there is seen to be a very small basioccipital, a pair of small exoccipitals, and a relatively large supraoccipital, with no distinct interparietal. The relations and shapes of these will be seen in text-fig. 1. On each outer side of the supraoccipital is a rounded bone of moderate size which I regard as the tabular. It is a membrane- bone which articulates with the supraoccipital, the parietal, the exoccipital, and partly covers the petrosal or periotic. At this stage it does not quite reach the squamosal, but not improbably in a slightly more advanced stage it may be found to articulate with the squamosal. Whatever be the nature of this bone, it quite certainly, as will be seen later, is not formed from any part of the ear-capsule, and as it certainly occupies the exact position of the tabular in Therapsid and other early reptiles, it seems well to apply this name to it.- As a large tabular occurs in 32* 452 DR. R. BROOM ON THE Cynodonts we may infer that the early mammals still retained it, and possibly Chrysochloris and its ancestors have never lost this ancestral character which all other known mammals have lost. The occiput of Chrysochloris is very interesting when compared with its supposed ally Hemicentetes (text-fig. iL B). It will be observed that the most striking difference is the entire absence of even a rudimentary tabular, whose place is occupied by lateral extensions of the suipraoccipital and parietal. There are also considerable differences in the relative sizes of the other elements. Membrane-bones of the base of the skull of the newly-born Chrysochloris hottentota. The skull of the newly-born Chrysochloris hottentota is now represented by 710 transverse sections. From sections 1 to 316 the series is complete and continuous. Here, unfortunately, the block of paraffin has been placed in the microtome in the reversed position and a wedge-shaped section of considerable thickness has been removed. Between sections 372 and 373 about eight sec- tions are missing. ‘Though these imperfections have increased the difficulty of reconstruction, they have fortunately not resulted in the loss of any fact of importance. In the reconstructions I have made, the gaps have been restored, as can be done with complete confidence, and the slight obliquity of the posterior half of the skull corrected. As there is nothing of importance to be seen on the upper side of the skull that is not better seen in the slightly older dissected skull, I shall confine my description to the interesting condition of the base. The whole palate is relatively shorter and broader than in the older stage. The premaxilla is already well ossified, and has two large open sockets for the Ist and 2nd developing milk-incisors. The cavity for the third developing tooth is only partly formed by the premaxilla, and partly by the maxilla. There seems little doubt, however, that this 3rd tooth is also, as has been generally held, an incisor. The palatine process is rather short, and there is a fair ly large anterior palatine foramen. The maxillar y bone has a very broad but rather short palatal plate. There are distinct concavities for part of the 3rd milk- incisor, the milk-canine, the three milk-premolars, and for the Ist true molar. The dental lamina which is going to form the 2nd and 3rd molars is not at this stage supported by bone. From the lamina of bone which forms the outer protection for the dental germs, there is continued backwards the process of bone which forms the zygomatic arch. There is no distinct jugal. The palatine is seen as a fairly large bone behind the maxillary. The plates forming the secondary palate are well SKULL OF CHRYSOCHLORIS. 453 developed, and form the bony borders of the wide choana, Between the deeper portions of the palatines, the relations of which will be better understood from the sections, is seen the Text-figure 2. Reconstruction of base of skull of Chrysochloris hottentota (newly born) showing the membrane-bones. Portions of the right tympanic and the right basisphe- noidal processes have been removed to show the underlying parts. X 12. For explanation of lettering see p. 458. vomer. Superficial to the posterior part of the palatine is the peculiarly shaped pterygoid. The main part of the bone is 454 DR. R. BROOM ON ‘THE continued backwards from the palatine. A long slender out- ward process extends underneath the alisphenoid and in close relation to it. Downwards and backwards there passes a strong hooked process which supperts the soft palate. The general shape will be readily understood from the restored figure (text-fig. 2). External to the pterygoid and poster ior to it is seen the large bony ring of the tympanic. It forms about 4 of a ited 2 Lying between it and Meckel’s cartilage is seen the prearticular or “goniale” of Gaupp; and immediately internal to the pre- articular is a slender splint of bone which has not, so far as I am aware, been previously observed in mammals. It may represent the surangular of the reptilian jaw. External to the ty mpanic is seen the developing squamosal, It curves round the auditory region, and in the figure is seen extremely foreshortened. In the slightly older skull the squamosal passes much further downwards and inwards and protects the whole of the posterior tympanic region which at this stage is exposed. Behind the auditory capsule is seen the developing tabular ; it is in close association with the anterior border of the supra- occipital. Tn the figure given the only other membrane-bone seen is the frontal, a considerable part of whose lower border is shown. A large foramen shown is occupied by a venous sinus. Chondrocranium and cartilage-bones of the newly-born Chrysochloris hottentota. Text-figure 3 shows a reconstruction of the chondrocranium, almost all the membrane-bones having been removed. The most striking general features are the great size of the occipital and auditory regions, the very small size of the orbitosphenoid, and the well-developed condition of the nasal capsules. The internal structure of the nasal capsule is to some extent revealed in the figures of sections given. In the reconstructed figure the most inter esting feature shown is the primitive struc- ture of Jacobson’s cartilage. Tt will be observed that there is, as in marsupials and a few lowly-organised Kutherians, an outer bar which is, however, not quite completely formed. There is a small posterior nasal-floor cartilage. The orbitosphenoid is unusually small and does not extend far backwards as 1t does in marsupials and primitive Eutherianus. tt has a foramen rotundum for the rudimentary optic nerve. On the base of the posterior part of the nasal capsule is a large membrane-bone of doubtful significance. Text-fig. 3 shows the appearance of the bone as viewed from below after the removal of the vomer, palatine, pterygoid, and alisphenoid. In the figures of sections given (Pls. I., IJ., figs. 6-8) the relations of the bone to the nasal capsule, to the orbitosphenoid, SKULL OF GCHRYSOCHLORIS. ADD and to the nasal septum, in addition to the relations to the membrane-bones and the alisphenoid, can be fully understood. Text-figure 3. Reconstruction of base of skull of Chrysockloris hottentota (newly born) with the membrane-bones removed. On the right side the auditory ossicles have also been removed and part of the basisphenoidal process and the whole of the alisphenoid. The posterior nasal-floor cartilage has also been removed from the left side. X 12. For explanation of lettering see p. 458. Being above the alisphenoid, the bone is manifestly not one of the pterygoid group of bones. It is much too far back to be the 456 DR. R. BROOM ON THE homologue of the reptilian paired yomer; and it cannot be the septomaxillary. It is no doubt the same bone as Parker found in a number of mammals and referred to as the postero-lateral vomer ; but it is no part of the true vomer. Considering how very large a membranous ossification is formed in connection, as we shall see, with the basisphenoid, one may think of the possibility of this being a membranous exostosis in connection with the presphenoid, though at this stage, and even in the later one represented by the small skull dissected, there is no ossification of the cartilaginous presphenoid. In the meantime I think it safest to leave the significance of the bone as very doubtful. The alisphenoid is fairly well developed but very narrow, and much more like a columella cranii than in any other mammal IT know. It is still mainly cartilaginous, though commencing to ossify along the posterior border, and at its inner end there is considerable ossification which cannot altogether be separated from the ossification in membrane which is spreading out from the basisphenoid. The basisphenoid is chiefly remarkable for the large mem- branous exostosis which forms a large process extending down- wards and outwards. This process may be regarded as a basisphenoidal process comparable to the basisphenoidal pro- cess of many reptiles in having a true articulation with the pterygoid. The auditory ossicles are relatively large. The general structure of the auditory region will be more readily understood from the sections. The tegmen tympani is feebly developed. The most interesting feature of the occiput is the fact that only a relatively small part of the supraoccipital is preformed in cartilage. ‘The greater part is a membranous exostosis which fills in the median portion between the two sides. It might be argued that this median part is really the interparietal, but from the condition seen in the later states it seems better to look on the ossification as a supraoccipital in which only the lateral parts have a cartilage basis. Description of the more important sections. As I have in my previous paper figured and described the cartilages in connection with Jacobson’s organ, and as the posterior part of the nasal capsule has a very complicated arrangement of turbinals which would require for the complete solution of its significance a much fuller comparison with other mammalian types than is at present possible, I shall leave any detailed account of the nasal cartilages till some future time. Figures 1—6 (PI. I.) represent sections 131, 185, 238, 280, 302, and 316 respectively, and show the general arrangement of the nasal cartilages. Fig. 1, which is through the middle part of Jacobson’s organ, SKULL OF CHRYSOCHLORIS. 457 shows the small posterior nasal-floor cartilage. The anterior part of the maxilla is seen inside the premaxilla. Fig. 2 shows the small procumbent inferior turbinal. The small developing 1st milk-molar is seen, and the very slender lacrimal duct. Fig. 3 is through the anterior part of the palatine. The maxilla has the outer portion which protects the developing 3rd milk-molar no longer attached to the main part above. Fig. 4 is through the plane of the rudimentary eye. The moderately large lacrimal gland is cut across. The relative positions of the palatine, maxilla with its zygomatic process, the vomer, and the frontal are shown. Fig. 5 is through the anterior part of the pterygoid, and shows the relations of the palatine to the vomer internally and to the pterygoid inferiorly. Fig. 6 is through the posterior end of the vomer. Above the vomer and the palatine is seen the problematic bone previously mentioned. It is seen to be in close relation to the nasal cap- sule and almost in contact externally with the spheno-palatine ganglion. A large venous sinus is seen passing out of the frontal bone. Fig. 7 is a little posterior to the section shown in fig. 6, but not quite in the same plane, as already mentioned. The problematic bone is seen to be of large size, lying above the pterygoid and the posterior end of the palatine. Fig. 8 (Pl. II.) is through the anterior part of the Gasserian ganglion. ‘The alisphenoid is cut down the middle. The lower end is ossifying by exostosis. Below the alisphenoid is seen the pterygoid. Above these two elements and below the posterior end of the nasal capsule, is the large problematic ‘lateral vomer.” Its upper outer angle is in close relation with the lower inner end of the orbitosphenoid. Fig. 9 is through the anterior end of the auditory capsule and shows the cochlea in section. The basisphenoid shows part of the lateral exostosis which supports the capsule. The tympanic bone is seen cut across at both the outer and inner ends of the long flattened tympanic cavity. Inside the upper end of the tympanic is seen the curved prearticular or goniale which embraces Meckel’s cartilage. Along the imner edge of this prearticular is another slender splint of bone which may repre- sent the reptilian surangular. Above the prearticular is Meckel’s cartilage, and inside this latter is seen the small chorda tympani nerve. Hxternal to Meckel’s cartilage is shown the large cartilage which forms the articular end of the dentary, and above this is seen the posterior end of the zygomatic process of the maxilla and the anterior end of the squamosal. The section is through the main part of the external auditory meatus, which is seen surrounded by a series of cartilages belonging to the external ear. Fig. 10 is through the posterior part of the malleus. It shows 458 DR. R. BROOM ON THE the relations of the squamosal to the parietal and maxilla, and of the hyoid to the VIIth nerve and to the tympanic. Fig. 11 is through the incus and the stapes. The stapes is seen pierced by the large stapedial artery. The incus is large and is seen mainly covered by the squamosal. The VIIth nerve is seen cut in three places, the inner part being continuous with the geniculate ganglion. Jn the lower part of the section is seen the large ganglion of the vagus nerve. Fig. 12 shows the tabular bone and its relations to the supra- occipital, exoccipital, and auditory capsule. Whatever be its significance, it has manifestly, as will be seen, nothing to do with the auditory capsule. Concluding observations. The skull of Chrysochloris is in part a primitive, and in part a specialised and degenerate type. It is primitive in the structure of Jacobson’s cartilage, in the feeble development of the inferior turbinal, in the simple columella-like alisphenoid, in having a large maxillary zygomatic process, in the possession of a large complicated pterygoid which articulates with a large basisphenoidal process, and in the possession of a distinct tabular bone. It is degenerate and specialised in the rudimentary condition of the orbitosphenoid, in the loss of the ectopterygoid inter- parietal, and jugal, and the lack of development of a zygomatic process of the squamosal. The examination of the skull confirms the result of the examination of Jacobson’s organ and its relations in showing that Chrysochloris 1s not a near ally of Centetes, and that it is not an Insectivore. Further, it is not allied to the Meno- typhla, and ought to be placed in a distinct order Chrysochloridea. Explanation of Lettering of Text-figures and Plates. Art.D. articular head of dentary; A.S. alisphenoid; Awd. auditory capsule; B.O. basioccipital; B.S. basisphenoid; #.A. external auditory meatus; H.O. exoccipital ; #.J. foramen jugulare; F.R. fenestra rotunda; Fr. frontal; G.G. Gasserian ganglion; G.X. ganglion of Xth nerve; Hy. hyoid; Inc. ineus; J.C. Jacobson’s cartilage; .d.; Ug. lacrimal gland; Mal. malleus; Md. mandible; Wh. Meckel’s cartilage; MWe. maxilla; Na. nasal; O. orbit; O.S. orbitosphenoid ; P.A. prearticular; Pa. parietal; Pal. palatine; Pet. petrosal; Pmax. premaxilla ; P.N.F.C. posterior nasal-floor cartilage; Pt. pterygoid; S.A. surangular; S.H. saccus endolymphaticus ; S.O. supraoccipital; S.P.G.: spheno-palatine ganglion ; Sq. squamosal; Sz. stapes; S¢.4. stapedial artery; 7b. tabular; Ty. tympanic ; . Vth nerve; Vd. mandibular branch of Vth nerve; Vina. maxillary branch of Vth nerve; VIL. VIIth nerve; Vo. vomer; V.S.F. venous sinus of frontal; <. problematic bone at back part of nasal capsule. EXPLANATION OF PLATES I. & II. Figs. 1-12. Transverse sections of skull of newly-born Chrysochloris hottentota. All sections are 15 times natural size. SKULL OF CHIRYSOCHLORIS. 459 ADDENDUM (July 12, 1916).—After my paper had been com- municated to the Society, Mr. D. M. 8S. Watson called my attention to the fact that there is generally present in the Common Seal (Phoca vitulina) a bone which also appears to be a tabular. It has, of course, long been known that not infrequently a distinct bone occurs in the corresponding region in the human subject; and we may, I think, conclude that though most mammals have lost the tabular there is a tendency for it to re- appear by reversion in forms in which, owing to the configuration of the brain, the occiput is largely developed.—R. B. ON THE HOUSE-FLY INVESTIGATIONS. 461 17. Fly Investigations Reports.—I. Some Observations on the Life-History of the Blow-Fly and of the House- Fly, made from August to September, 1915, for the Zoological Society of London. By Wuyirrep H. SAUNDERS *. [Received March 19,1916: Preliminary report read by Prof. H. Maxwett Lerroy, November 9, 1915. | Tre Biow-F iy. The breeding-material used was raw meat—a mixture of beef and mutton scraps. The meat was placed in pickle-jars, into which the flies were introduced; the tops were covered with muslin, and eggs were laid on the meat contained in these traps. The temperature of the room in which they were kept varied from 40—60° F. Batches of Bluebottles (Calliphora erythrocephala) and Green- bottles (Lucilia cesar) were watched and compared, and the table given below shows very slight differences in the period of metamorphosis. ; Bluebottle. Greenbottle. Ova laid, Sept. Ist—2nd. Ova laid, Aug. 24th. ,, batched, ,,. 2nd—3rd. ,, hatched, oul Larve pupated, ,, 14th-l19th. Larve pupated, Sept. 4th—5th. Flies emerged, ,, 27th. Flies emerged, ,, 15th—29th. As batches of eggs were laid they were isolated, and, so far as possible, the development was watched. The eggs were, as a rule, deposited in little crevices in the meat. ‘The flies are attracted to moist meat whether fresh, foul, raw, or cooked, but they avoid dried meat. Lgg-laying.—This was observed through a binocular dissecting microscope. A fly which had been isolated in a test-tube with a piece of meat deposited eggs within an hour after being captured. The long ovipositor (about half the length of the body and a very sensitive structure) felt the surface before the passage of each egg. ~The eggs which I saw laid were placed parallel with one another, and arranged in the typical compact little group. In hatching, the egg splits longitudinally along a suture marked by a white line. It splits first at the broader end, on the convex side, which is in contact with the dorsal surface of the larva. The rupture is brought about. by the pressure of movement within, and begins with a narrow slit, which lengthens as the maggot escapes. The empty shell very quickly shrivels. * Communicated by Prof. H. Maxweut Lerroy, M.A., F.ZS. 462 MISS W. H. SAUNDERS ON THE Maggot.—The larval stage lasted from 10 to 16 days in most cases, but no moults were discovered. Puparium.—tThe resting-stage covered from 8 to 13 days in the Bluebottle, but the Greenbottle spent up to 24 days in that condition. Some eggs and maggots perished in a temperature of 38° C. The last batches remained in the maggot stage for many weeks, and they all succumbed at the beginning of November. THe Housse-Fry (Musca domestica). Eggs were laid on banana, either in cracks or crevices of the pulp or under the loose skin. As batches of eggs were found they were isolated in small dishes. They were laid in material kept ina room where flies were bred. The maggots fed on banana and a mixture of bread, casein, and sugar moistened with water. Changes in growth were observed, but, as in the Blow-fly, no larval moults could be seen. The method of egg-laying and of hatching is similar to that of the Blow-fly. Some batches of eggs were divided, one half being kept at the normal temperature of the room (40-60° F.) and the other at 38° C. (100°-4 F.). The results were as follows :-— Temperature 100° 4 F. Temperature 40-60° F, Batch 1. Eggs laid September Ist—2nd. Hatched Sept. 2nd—3rd. Hatched Sept. 2nd—3rd. Pupated ,, 7th—10th. Pupated ,, 15th. Emerged ,, 12th—16th. Kmerged ,, 26th—27th. Total 14 days. Total 25 days. Batch 2. Kiggs laid September 3rd—4th. Hatched Sept. 5th. Hatched Sept. 5th. Pupated: ,, 12th. Pupated ,, 16th. Emerged ,, 15th—16th. Kmerged ,, 28th. Total 11 days. Total 23 days. Batch 3. Eggs laid September 5th. Hatched Sept. 6th. Hatched Sept. 6th. Pupated ,, 13th. Pupated ,, 22nd. Emerged ,, 15th—16th. Emerged ,, 28th—29th. Total 10 days. Total 23 days. Batch 4. Eggs laid September 6th—7th. Hatched Sept. 7th. Hatched Sept. 7th. Pupated ,, 14th—15th. Pupated) Wei 7 23rd: Emerged ,, 16th. Emerged ,, 30th. Total 9 days. Total 23 days. HLOUSE-FLY INVESTIGATIONS. 463 Conclusions. The four batches of the House-fly show that the higher temperature hastens development—38° C. appears to be the maximum, the maggots cannot endure 40° C., and Blow-fly maggots perish at 38° C. The experiments serve only to confirm records previously published. The enquiry closed at the end of September, so that within a month there was no opportunity of repeating and checking the Blow-fly results, nor of observing hibernating habits with the approach of winter. It is interesting to note that the Blow-fly will breed together with the House-fly in the mixture of bread, casein, sugar, and banana, and it would be worth while following the investigations through the winter with a view to clearing up points connected with hibernation, etc. y dame . sane aa aa i a iA ; 7 ern at in a oat ; shiek pry nee stg: artis pa Pd RTCA RSL, ie EE Uta BR ag Ane Sie fal mal sate i iit, ge geht) a meaniennee aa iat Bie fa i atin) gash ak Bla AA aaa ih 00 ‘ POD abel? gee auiais arash ey ult watw bop, ial we pr oon DAMEN: RRM alae cy 0a Ae ee hoeie us if apie Niro POH ah i eae e "Pao ideale Ke coy ie fi Nir iret begets iis) aly Ny i 2 My D pelle juibelieil FEU eia dah ea Mea ae aon Tonks, ‘x Pri wiiwh: ONE. | ‘i - Piet | a hers TOS be ee, io | sa ei: ha ile acai wet oe Pawlet Ai ae hy ae imme hid ni ee Sloe vio ASthatg! SRO ce Iie on a eS Beso ns GR dah ‘ia medi) ie aes 5 Ene: se Airs: La Pe ie eka bed isha Fue ye pie AN Kegs in Bay tedinve bie. cn een} is ss ee oe a abate ieee mh tape a oee:: is sont oy i Dace ie eM i Miriey : cL 15 tates: ON THE HOUSE-FLY INVESTIGATIONS. 465 18. Fly Investigations Reports—U. Trials for Catching, Repelling, and Exterminating Flies in Houses, made during the year 1915 for the Zoological Society of London. By Winirrep H. Saunpers*. [ Received March 19, 1916; Preliminary report read by Prot. H. Maxwetni LEFRoy, November 9, 1915. | The trials were made at a country residence in Kent during August and September. House-flies were particularly numerous in the kitchen quarters and in an outhouse where poultry-food was prepared and stored. The living-rooms of the house were practically free from flies. An inspection was made to ascertain whether any breeding- grounds existed on the premises. It was found that farmyard manure dumped into & manure-tip produced a large number of flies, though it was clear that the main source was beyond the control of the householder. Pigs were kept on this manure, which was allowed to accumulate for six weeks before being moved and stacked on some land a few yards away. No steps had been taken to check the increase of flies, and the situation offered scope for testing under normal conditions the remedies which from experimental investigations were most promising. Measures were taken : 1. To check the breeding of flies by treating the farmyard manure :— («) In the manure-tip by watering the surface every four days with Westoran, in the strength of one part to twenty parts of water. (6) Stacked for use in the garden by dressing the surface with green oil and soil, in the proportion of one part oil to forty parts of soil per 100 square feet of surface. 2. To destroy flies by poisoning and by attracting to traps. Tria [.—TRappine. ’ Balloon traps baited with (1) casein, sugar, and stout ; (Pin ne banana ; (3) 55 ns water gave the following results :— * Communicated by Prof. H. Maxwetn Lerroy, M.A., F.Z.S. Proc. Zoot. Soc.—1916, No. XX XIII. ao 466 MISS W. H. SAUNDERS ON TILE Taste 1.—Mapweb Bait (casein and sugar in equal parts) and stout. Moistened daily with stout. Say | Servants’ | Poultry | Day. Kitchen. | Hall. | Shed. | Total. US 0) BIRO Soocae 4, Musca. | 6 Musca. 12 Musca. | 22 Musca. | | | | | Acres se Ee eee 2 VE 4, |) 46 8 Blow. | | BUND soonsc 42 Cs, OF oy | 128 op 97 op | Ciheaes Sania 5) ass 2 ees LOS eT bes | HRD soeese HO) 5 | Shy OP COmars | | Ot hiees Mella re [os aby gy | ae aaraa a yee | aad eo Totalaee 131 Musca, 3 Blow.|154 Musca.| 77 Musca. | 362 Musca, 3 Blow. : TaBie 2.—Mapweb Bait and banana. 0 Servants | Poultry Day. Kitchen. Tela. Shed. Total. US 10) BIOL ssc0e 1 Musca, 6 Fannia,! 7 Musca. | 39 Musca. | 47 Musca, 6 Fannia, 1 Blow. 1 Blow. AYN, coca 2 Musca. 1D oy, 10 = 24 Musca. bth Biron Ce aie | OI ee, 88 3 6theeeee 6 ” 22 ” 10 ” 38 2 th ......124 3 Aon hve LO eeu OB Ocheeee | Sieh, 1 on; Oa eee Rotaliees 44 Musca, 6 Fannia,) 75 Musca. | 85 Musca. 204 Musca, 6 Fannia, 1 Blow. 1 Blow. TasLE 3.—Mapweb Bait and water. Mixed two days previously ; moistened daily with water. Kitchen. 2 Musca. OV 13 3l 73 Musca. Servants’ Hall. 13 Musca. 47 14 16 80 Musca. Shed. 18 23 50 Musci | | Poultry peer. 2 Musca. | Total. 4 Musca. 36 61 L. 213 Musea. HOUSE-FLY INVESTIGATIONS. 467 Triat I1.—Fiypaprer (Exrirmo). Tested against Trial I. with the following results :— Examined after two days : TABLE 4, 1. Kitchen............ 52 Musca against 41 in 3 balloon traps... Bait and stout... Il Bait and banana... 8 Bait and water ... 22 2. Servants’ Hall... 135 Musca against 42 in 8 balloon traps... Bait and stout ... 20 Bait and banana... 1 Bait and water ... 16 3. Poultry Shed ... 314 Musca against 18 in 3 balloon traps... Bait and stout... 13 Bait and banana... 3 Bait and water) in.) 2 N.B.—Of the House-flies caught in traps 69 °/, were males. TriaL IIJ.—Sprays. Rooms were sprayed with the following (the windows were netted for two days, then fly-papers were exposed) :— 1. Flybane (aromatic disinfecting oil). 2. Exol. 3. Army Spray. TABLE 5. Flybane. Day after netting was removed :-— Kitchen. Servants’ Hall. Poultry Shed. 102 Musca. 105 Musca, eggs laid. 40 Musca. Kxol. Two days after netting was removed :— Kitchen. Servants’ Hall. Poultry Shed. 130 Musca. 250 Musca. — Army Spray. This preparation was arrived at late in the season (November), when, under normal conditions, flies had disappeared. It was, therefore, tested in some Army recreation-rooms, in a building where flies were bred for experimental purposes. The conditions were similar to those of ordinary cook-houses and dwelling- 33* 468 ON THE HOUSE-FLY INVESTIGATIONS, rooms, food being served there which provided the usual attractions, (N.B.—The Army Spray is prepared from Professor Maxwell Lefroy’s fonmula by Heppell & Co., Knightsbridge, who supply it at 30s. per gallon concentrated. The diluted spray for use costs ls. 6d. per gallon.) (RRP Vie EivaKcinE Re Flykiller (treacle, arsenic, and water) was tested according to recommendations by Berlese, who used it with great success in Italy. Rags saturated with the solution were hung in places out of reach of domestic animals, and the mixture was sprayed on the roof, etc. Two applications were made, and the surround- ing areas were carefully examined for dead flies the day after each. None were found, and there was no decrease in the number of flies which entered the house. CONCLUSIONS. From Trial IIL. :— 1. Flybane is effective in killing flies by contact, but it does not act as a repellent. There are two objections to its use in kitchens, wards, and dwelling-rooms. First, the parattin oil taints food (although it is absolutely harmless); and, secondly, it leaves a mans upon the window-panes, furniture, etc. . Exol is effective in bringing the fies déwn—that is, 1b ee them sufficiently to sweep them up within half an hour, but about 50°/, finally recover. It was found that all recoveries were made within 20 hours. The Army Spray successfully kills flies by contact. Those which fali never recover, although they may struggle for some hours. It is not a deterrent. Flies returned to the room sprayed with Flybane on the following day and in two days after Exol. They continued to be abundant after the manure treatments were made. The fact that flies reappeared after the treatment of all farm- yard manure decided that they were being bred on neighbouring premises. As regards poisoning, Flykiller proved a complete failure under the particular conditions that it was tested, probably due to a difference in climate. Fly-papers were very successtul, and in comparing figures they give better results than the traps. Of traps the common balloon is the one which is recommended. It should be baited with casein and sugar in equal parts (Mapweb Bait), moistened with beer, stout, or banana. ‘To keep rooms free from flies the most practicable procedure would be to spray daily with the new Army Spray (absolutely harmless to food and having a pleasant scent), and to set traps or fly-papers as explained above, ON THE HOUSE-FLY INVESTIGATIONS. 469 19, Fly Investigations Reports.—III. Investigations imto Stable Nemes to rs the Breeding of House-Flies, made during the year 1915 for the Zoological Society of London. By Wrxtrrep H. SaunDErs * | Received March 19, 1916: Preliminary report read by Prof. H. Maxwnii Lerroy, November 9, 1915. | INTRODUCTION. An extensive series of experiments was made in June and July for the purpose of finding a treatment for fresh stable manure, which would be effective in checking the breeding of House-flies, and which could be safely employed for agr icultural purposes. Owing to the increased price of borax, which before the war was the only substance in use for the purpose, the need for a treatment at a lower cost was pressing for military purposes, for farmers, horticulturists, and manure contractors. Many practical obstacles arose in working out the solution of this problem. Although many tons of manure were accumulated in artillery and cavalry camps, it was impossible to get a sufficient quantity conveyed to convenient trial-grounds owing to the difficulty of transport. A small amount was purchased, and, later, facilities were granted at the Army Veterinary Hospital, Woolwich, and on market-garden premises at Brentford, where stable manure was dumped. Experiments on manure, to test the action of various liquids upon flies and maggots, were carried out at Woolwich and at Brentford, and those on plants at the Royal Horticultural Society’s Gardens, Wisley, at Messrs. Sutton’s, Reading, and at the Horticultural College, Swanley. This work on manure treatments was suggested and designed by Professor Maxwell Lefroy, under whose guidance all the experiments have been carried out. A. MAnuriAL EXPERIMENTS. Experiments on fresh stable manure were made along two lines :— 1. To test the action of vapourisable liquids upon maggots present in the manure. 2. To test the action of substances as repellents to flies when applied to the surface of manure heaps. Experimental heaps of definite sizes and shapes were con- structed, and the strength of each application was in proportion to the cubic area of the: manure, * Communicated by Prof. H. Maxwett Lerroy, M.A.,, E.Z.8. 470 MISS W. H. SAUNDERS ON THE The Application of Maggot Poisons. The following liquids miscible in water were used :-— Miscible Tetrachlorethane (Westoran). Miscible Fusel oil 1 °/,. ie Pyridene 10 °/,. ” ” 5 Wie Soluble Tar oil. Higher Pyridene bases. Neutral Blast-furnace oil. Miscible oil, Heavy. op. baked Methods. 1. Several small heaps, each of 10 cubic feet, were treated with Westoran and Miscible Fusel oil. Each heap was 1 foot high on a soil foundation, which was covered with peat-moss litter. Results on the 3rd day. Miscible Fusel Westoran. Oil, 1%. 1. One quart of 1 oz. diluted to 40 ozs. Alive. Alive. solution mixed inti- 2 ozs. 55 55 ie Escaped. mately with the manure. 4 ozs. 35 a Dead. Alive. 2. Maggots put 1 oz. c 7 Alive. Escaped. at 4 from the bottom, 3 ozs. es 35 Many dead. Ag one quart of liquid 5 ozs. 5 we Dead. 33 poured on at 3. 3. Control ...... a fe Bae “ie Escaped. 2. Typical span-shaped manure-heaps of 220 and 110 cubic feet treated with Westoran and Miscible Fusel oil respectively. 1 quart of solu- ; Westoran. Miscible Fusel Oil, 1 %%/o. tion to every In the strength of 2 ozs. In the strength of 4 ozs. 10 cubic feet in 40 ozs. water (59/9). in 40 ozs. water (10 9/9). of manure. Maggots put in Results. three positions. In 24 hours maggots in In 24 hours maggots all The liquid was the centre dead; living. sprayed on as maggots near the top Third day some living, the heap was pupated ; maggots at others pupated. made up. the bottom, near the Fifth day all dead. edge, alive. 3. 5-foot cubes of manure (125 cubic feet) were treated with Westoran, Miscible Pyridene, Kerosene, higher Pyridene bases, and Cresol. Liquid poured down a hole in the centre in the strength of 25 ozs. diluted to 33 gallons with water (=2 ozs. to the quart per 10 cubic feet) = 5%. Maggots put in six positions. Liquid sprayed as stack was built in the strength of 24 ozs. diluted to 45> gallons (= 14 - ozs. to 1 quart per 10 cubic feet). Maggots put in four positions. HOUSE-FLY INVESTIGATIONS. 471 Results. Westoran. MWiscible Pyridene. In 24 hours :-— All dead. All dead. In 2 days :-— Dead near the centre. Dead near the centre. Higher Pyridene Kerosene. pie Cresol. ; In 24 hours :— 3 lots dead. 3 lots dead. 2 lots dead. In 2 days :— 4th lot dead. 4th lot dead. 3rd lot dead. 4, Two heaps, each on a 5-foot-square base, 5 feet high with a 15-foot-square top, treated with :— Miscible Pyridene 5 °/,, 1 quart to 2 gallons of water. z Heavy, 2 quarts to 2 gallons of water. Liquid was poured down the centre in the strength of 1 quart diluted to 2 gallons with water. Maggots were put in two positions. Results. In a few days flies were emerging from both heaps. ‘The heaps were opened, and the oil was found to be concentrated in the centre. Both were hot, and puparia were present in the bottom edges of the heap and in the soil under the edges. The manure used for the above experiments was not fly- infected ; maggots enclosed in gauze were put into the heaps. The Application of Fly-Deterrents. The following non-miscible liquids were used :— Neutral Blast-furnace oil, Blast-furnace Creosote. Green oil. Tar oil and Pyridene. Mineral oil and Pyridene. They were applied by :—— (a) Mixing with soil in the proportion of one part liquid to forty parts soil, The soil was piled into a cone, and the oil 472 MISS W. H. SAUNDERS ON THE poured into a depression at the top and thoroughly incorporated with the soil by the ‘‘ cone-and-quarter ” method. . The mixture was spread over the surface of the manure, forming a layer 1 inch thiek. (6) Treating the soil on which the manure rested, as well as the surface, by sprinkling the plain oil or spreading oiled soil. (c) Sprinkling plain oil evenly over the surface of the manure. Methods. I. Three manure-heaps, each ona base 64 feet square, rising to 8 feet in the centre, were treated with Neutral Blast-furnace oil, Blast-furnace Creosote, and Green Tar oil mixed with dry soil in the proportion of one part oil to 40 parts soil, spread evenly over the surface, forming a layer 1 inch thick. Maggots were put under the treated layer on the fourth day. Results. Neutral Blast- Surnace Oil. Living after 2 days. ~ Dead in 2 days. Dead in 24 hours. Blast-furnace Creosote. Green Tar Oil. JI. Four manure-heaps, each on a base 7 feet square, rising 3 feet to a top 3 feet square, were treated with :— Green oil. ) Green oil and Pyridene. ¢4 gallon to 10 gallons of soil. Neutral Blast-furnace ofl.) Control. The mixture was spread evenly over the surface. All the manure was infected. Results. In three days larvee were found dead in the treated heaps. In six days the Control] heap contained large maggots. The treated heaps remained immune. III. Four manure-heaps, each ona base 4 feet 6 inches square, rising 18 inches in the centre, were treated with :— a ene be : 1. Mineral oil and Pyridene. § a gall. spanisled ees buses @ + gall. with 10 galls. soil on surface. 2. Mineral oil and Pyridene. 4 gall. with 10 galls. soil on surface only. 3. Tar oil and Pyridene...... + gall. with 10 galls. soil on surface only. lo ‘] ne 1 . r 4, Woe oil endl Baniileno..... { + gall. with 10 galls. soil on surface only. + gall. sprinkled over base. The manure contained many full-grown larvee, but the heaps were too small to heat. Results. Flies emerged from the mineral-oil heaps through places where straw prevented the treated soil from lying evenly. They were HOUSE-FLY INVESTIGATIONS. 473 not seen emerging from the Tar-oil-treated heaps, and these were covered: with muslin. Flies emerged later in small numbers. Tar Oil and Tar Oil and Mineral Oil and Mineral Oil and Pyridene ; Pyridene ; Pyridene ; Pyridene ; Top and Under. Surface only. Top and Under. Surface only. Flies emerged, Few flies emerged, Many flies Flies emerged, no pupz present pupe found in emerged, no some pups in in the soil under- the soil under- pupe in the the soil. neath. neath. soil. Results show that the Tar oil prevents the maggots from migrating into the soil below the manure-heap. While forming a barrier to larve, and acting as a deterrent to flies, it does not prevent flies which emerge from pup present in the manure from escaping through gaps provided by the straw of long manure. N.B.—Maggots placed on soil mixed with (1) Green Tar oil, (2) Neutral Blast-funace oil burrowed into it away from the light, and were dead in ten minutes. IV. Four manure-heaps, each on a base 64 feet square, rising 3 feet in the centre to a point, were treated with :— Neutral Blast-furnace Oil. Blast-furnace Creosote. ie gallon with 20 gallons soil. Green Tar oil. Control. The treated soil was spread evenly over the heaps. Maggots were placed in each and the temperatures recorded. In areas of about 95° F. the larvee were dead in all but the Control heap. Res wilitis: In five days the Control heap was infected while the treated heaps remaimed immune. Observations showed that conditions were favourable to breeding, but that flies were repelled from the treated heaps. V. Five heaps, each on a base 7 feet square, rising 3 feet to a top 3 feet square, were treated with :— Neutral Blast-furnace oil. ) Blast-furnace Creosote. Green Tar oil. Miscible oil and Pyridene. J Control. rx gallon to 10 gallons soil. Results. Tn four days maggots were found in the heaps treated with Blast-furnace Creosote and Miscible oil and Pyridene. These two stacks were destroyed. For ten days no maggots were found in the other two, although conditions such as moisture, 474 MISS W. H. SAUNDERS ON THE temperature, etc. seemed suitable for breeding, and untreated =? manure in the same condition became infected. VI. Five heaps of long manure on a base 7 feet square, rising 3 feet to a 3-foot square, were treated with :— Mineral oil and Pyridene...... 1 gallon with 40 gallons of soil. ” ” 99 ttn z ” 2) 20 » ” Tar oil and Pyridene ......... Ghar » 40 o i L 20 ” D9 P| eiviedslafeyeleis 2 oy) pF oD) ” Control.—Soil only. Results. In two days maggots were found dead on the surface of the Tar-oil-treated heaps, and a live one was wriggling in the full light on the top. In four days the heaps contained large dead maggots, and the Control contained full-grown maggots and puparia. Flies had evidently been laying in the Control. The treated heaps were still free in ten days. VII. Three manure-heaps on a base 7 feet square, rising 3 feet to a 3-foot square. The manure was long but not infected. They were treated with :— gall. sprinkled over the base. gall. with 20 galls. soil on surface. Tar oil and Pyridene 10 /p. Ditto. Mineral oil and Pyridene 10%. { tol tole Results. In five days the Control and Mineral-oil heaps contained maggots, but none were present in the Tar-oil one. It was warm, moist, and appeared very suitable. Observation showed that flies came readily to the heaps and that Pyridene appears to be attractive, but the attraction is temporary. VIII. One large heap of mixed manure on a base 9 yards by 7 yards was treated with a watering of pure non-miscible liquids. Seven gallons were used for a light watering. This was at the same vate as that used in soil-treatment, showing that an appli- cation of l-inch-thick treated soil at one part in forty is about equivalent to a light watering with the liquid. N.B.—There was a Control heap to each set of experiments which was examined for eggs and maggots, and where the conditions proved unsuitable for breeding no conclusions were drawn from the Control heaps. B. Puantr TRIALS. All the substances used in the manurial experiments were tested on plants in open plots, in pots, and in frames. i. Pros. 1. At Wisley, Blast-furnace Creosote, Neutral Blast-furnace HOUSE-FLY INVESTIGATIONS. AT5 oil, and Green Tar oil were mixed with soil at the rate of 1 in 40, and used with manure in the proportion of 10 gallons of oiled soil to 100 gallons of manure. Ten barrow-loads of treated manure was dug into each plot sized 44 feet by 8 feet. French beans and turnips were sown. Results. Gross weight of crop in lbs. Turnip. Bean. Blast-furnace Creosote ............... 2434 204 Control sy. ess ace hinerae sek rcscugee te 270 16 Neutral Blast-furnace oil ............ 2155 18 (Gloraitanoll Solaabo ec aeanpHe seeecenobade sevens 2324 173 Grae IE OL sesogacsscnesne cou concudove 1705 18 2. At Messrs. Sutton’s, Reading, who supply the following report, substances were tested on mustard, being a quick-growing crop :— Fifteen plots in all were treated, and the experiments were carried out in two series, Series I. consisting of Plots 1 to 10,and Series II., Plots numbering from 11 to 15. Each plot was about 1 square pole in area. The land on which these experiments were conducted was previously under mangel plants, and all of it had precisely a similar treatment. Series I.—The heaps of dung for these plots were dug in on June 26th, 1915, and the mustard sown on June 28th; the following tables serve to indicate the character of the dressings with which the dung was treated, the dates on which the seed germinated in each plot, and the respective merits of the plots at the dates mentioned. Series [1.—The dung in this case was dug in on August 13th, 1915, and the mustard sown on the following day; the results will be found in the tables already alluded to. It is most satisfactory that in both series not a single crop should have failed, and that consequently it may be assumed that dung treated with the chemicals employed by Professor Maxwell Lefroy may be used for manurial purposes without hesitation. Series I, Control No. 1 (untreated). Aa. Miscible oil, Heavy ...... 24 ozs. diluted to 43 gallons. Ab. 5 5 Pe east ne 48 Age (lavas 9 5 Ba. a oy WNEING osae 24 Ss i 45, Bb. - # Sa? Rosa 48 53 5 9 es Ca. * soni) ee bey heme ee 24, a 3 AL Cb. ys PAIEN inn aco taney 48 “6 5 9 i Da. s Spot ie pete 24, rr - 4h, TOL ay Tee AS asaya! pnt Og ANE Ea. Westoran or Miscible 24 Pe a 45s, Tetrachlorethane. 476 MISS W. H. SAUNDERS ON THE Dates of Notes. Notes to Trials. July 5th, 1915. Germination showing in each and fairly general in all. July 10th, ., “Control” and six following are all uniformly good and practi- cally no difference between any. Da and Db not quite so even as the preceding, not uniform in growth, gappy. ; Ea in much the same condition as ‘ Control.’ July 24th, .. No real difference between ‘ Control’ and six following lots. Da and Db continue the least satisfactory. Ea good lot and equal to ‘ Control.’ July 31st, ., * Control’ and six following lots still much alike. Da the weakest, but not really poor. Aug. 13th, ,, The plots were inspected by Professor Maxwell Lefroy and Dr. Stenhouse Williams. Series IT, Manure received August 13th and plots sown August 14th. Control No. 2. Ac. Manure oil No. 1 with earth. Be. oo) 33 No. 2 23 33 Ce. 39 33 No. 3 cy) 39 Dates of Notes. Notes to Trials. Aug. 21st, 1915. All plots germinated satisfactouily. Aug. 3l1st, ., Not much difference between ‘Control,’ Be, and Ce. Ac not quite so strong. Sept. 4th, ,, * Control’ and Be the two strongest. : Ac the weakest. Sept. llth, ., All four lots are good, but of the four Ac is slightly the weakest. Sept. 18th, ., Now all very strong and good, and little difference to be seen between any. II. FRAMEs. 1. At Swanley, melons and cucumbers were planted in frames and grown on the French system. Each plant was planted in soil over a cubic foot of treated manure. The treatments were :— Westoran. >) Miscible Fusel oil 1% 5. Miscible Pyridene. Miscible oil, Heavy. Miscible oil, Light. | 5 ozs. diluted to one quart Kerosene. [ per 10 eubic feet. Higher Pyridene bases. Cresol. Heavy Tar oil and Cresol. ! Neutral Blast-furnace oil./ Non-Miscible Tar oil. 5 ozs. to 10 cubic feet. Non-Miscible Pyridene. 4 ozs. to 10 eubic feet. Control. HOUSE-FLY ENVESTIGATIONS. ATT Results. All the plants grew to maturity and bore normal crops, with the exception of the Westoran-treated one, which died. 2. Melons planted in soil over one cubic foot of treated soil and manure and grown in a French frame. ‘The treatments Neutral Blast-furnace oil. Blast-furnace Creosote. Green Tar oil. All gave normal results. 3. Melons planted in soil over a hot-bed of manure treated with Westoran in the strength of 2 ozs. diluted to one quart with water per 10 cubic feet. The plants were grown on the French system, and the results were normal. 4. Cucumbers were planted in soil over a hot-bed of manure treated with Miscible Pyridene 10°/, in the strength of 2 ozs. diluted to one quart per 10 cubic feet. They were grown on the French system with normal results. N.bB.—In the case of 3 and 4 the manure used was treated a fortnight previous to planting. In all the otber experiments the manure was used immediately after treatment, so that nothing was lost. In actual practice a certain amount would be lost before use. Rous: 1. At Wisley, white mustard was sown in 7-inch pots on loam and treated manure in equal parts. They were kept in a cool frame and shaded. The following chemicals were used in the proportion of 1 part diluted to 3 with water. The experiments formed three series :— l. Treated with 30 ¢.c. of the mixture. 2. oP] 2? 150 by) py Bo ” ” 300 7 mr) Results Miscible oil, Heavy ..................... Rapid germination, ‘Good crop. 7 ae LTO VGN Water ativa tenet sae op 55 ee Miscible Pyridene, Series 1 pide 5 53 ni, ” ‘ 9 9 Fa ut a ass 2 Uneven oH) Poor cA Miscible Fusel oil, Series 1 ............ Pe ce seers BA as en a Pal 3} 4, Uebrenin ss Good _,, \AVSTWOMEND, TSISPIES IL aban sco sonce anne 5 % Sea ns ee iranicl 3. poagon Jeraxaye m7 Poor ,, Kerosene. ne Higher Pyridene bases. | Cresol. a Good a Good ,, Heavy Tar oil and Cresol. | Neutral Blast-furnace oil. 4.78 MISS W. H. SAUNDERS ON THE The plants were grown for two months, and at the flowering stage all the results were equal and even with the Control. The Westoran treatment resulted in a checked thin crop, but the plants reached maturity. 2. Cape Pelargoniums and Adiantums (maidenhair ferns) were repotted from 60’s into 5-inch pots with equal parts loam and treated manure. ‘The treatments used for mustard in Experi- ment 1 were repeated on twenty-two species of Pelargoniwm and on Adiantum henslowianum. All grew quite healthily, and at the end of seven weeks the treated plants looked as well as the Control. 3. At Swanley, melons were potted with a compost of equal parts treated manure and loam, and grown in a temperature of 60-80° F. For each treatment 1 quart of liquid was used with 4 ozs. and 3 ozs. of the chemical. Westoran at both strengths killed the plants, but those treated with the following behaved normally compared with the Control. They were kept until pot-bound :— Miscible Fusel oil. . Heavy Tar oil and Cresol. Miscible Pyridene 10° 9. Fusel oil. Miscible oil, Heavy. Neutral Blast-furnace oil. Miscible oil, Light. Tetrachlorethane. Miscible Pyridene 5 %/p. Miscible Pyridene 15 °/) Molar. Kerosene. Soluble Tar oil. | Higher Pyridene bases. Blast-furnace Creosote. Cresol. Green Tar oil. Carbon Tetrachloride. 4. Cucumbers, for which the methods of No. 3 were employed, were treated with :— Non-miscible Tar oil, Non-miscible Pyridene with perfectly normal results. CONCLUSIONS. oe The experiments show that the investigations led to two very suecesstul treatments :— 1. The surface-dressing of manure with Green Tar oil or with Neutral Blast-furnace oil and soil. 2. The application of Tetrachlorethane. Both treatments successfully kill maggots in the manure and are harmless to plants. The Tar oil has a permanent effect in being resistant to rain, while the effect of Tetrachlorethane lasts only while the liquid vapourises, and in time the poisonous vapour escapes. HOUSE-FLY INVESTIGATIONS. 479 The treatments began with the series of vapourisable liquids which led to the surface applications. Although these treatments are more satisfactory than any hitherto recommended, it is admitted that there are still some doubtful points in connection with the relation of the migration of the larve to the condition of the manure due to chemical action other than changes in temperature. For the early experiments infected manure was not obtainable; maggots enclosed in gauze were placed in different positions in the stacks. When House-flies became abundant naturally infected manure was used. The Tar-oil treatment is recommended for large accumulations of manure, either in military camps or for horticultural purposes, in the proportion of one part of oil to forty parts of soil. One gallon of liquid mixed with forty gallons of soil covers 100 square feet. The oils are products of the first distillation of tar. For large quantities the price is ls. per gallon, making the cost of the treatment 1d. per cubic yard for surface treatment only and 2d. per cubic yard for treatment of the ground and of the surface. The value of manure is ls. 9d. the cubic yard. Treat the manure which is added to a heap every five days, and if fresh ground is to be covered, when adding to a heap, oil the ground first. Maggots present in manure which is stacked on soil dressed with a Tar oil cannot escape into the ground to pupate. The manure ferments normally when treated with the oil, and the maggots perish in the treated soil to which they are driven, or they pupate in a stack which is cool (Experiment III.). That a manure-stack treated with Green oil or with Neutral Blast- furnace oil will remain immune to fly-attack has been confirmed by Experiments II., 1V., V., VI., and VII., where in each case the Control became infected. That the treatment is harmless to plants is shown by the results of Plant Trial I. (Plots) and III. (Pots) and Messrs. Sutton’s Series II., Ac and Ce. The vapour treatment with Tetrachlorethane, in the miscible or in the pure form, is recommended for small quantities of manure and for fresh manure used for hot-beds in the strength of 2 ozs. to 10 cubic feet of manure. Tetrachlorethane is a heavy liquid, specific gravity 1:6 and boiling-point 147°C. It is non-inflammable and commercially available. The price of pure Tetrachlorethane is 35s. per cwt. and that of Westoran 52s. per ewt. That a manure-stack treated with Tetrachlorethane will effectively kill maggots has been proved by Experiments I., II., and IIL, and that used with manure at 2 ozs. per 10 cubic feet is safe for plants, by Trials 3 (Frames) and Messrs. Sutton’s Series I., Ka. It is worth noting that all the treatments have been tested in intensive culture with satisfactory results at the strengths recom- mended. ON THE HOUSE-FLY INVESTIGATIONS. 481 20. Fly Investigations Reports. [V.—Some Enquiry into the Question of Baits and Poisons for Flies, being a Report on the Experimental Work carried out during 1915 ror the Zoological Society of London. By Ottve C. emenm [Received March 29, 1916: Preliminary report read by Prof. H. Maxwett Lerroy, November 9, 1915. } INDEX. Page BartsmiowBlowatlics! eee eee eee eee ST JEFNIER) OP JELOWSSATIES yaconenonancodesonsangocdovasosonesose ZAS)IL TetorisavoIS) Aqove TNE Boasech suoban Gesbe nea ubendnsbocteoceoswond CXS Caneall Swami on. const oso nssancorobeadusceacbesdesbenan BUR INoteonekinpusa muscle n. kia eee Oils Note on Proportion of Sexes in House-flies ......... 515 JOHSie CHE ANDRE WATNONIS oonscocsansancoce conogseosnceonvonane GUE These experiments testing various substances on flies, were made with the object of finding out which were the most suitable to use as baits for traps, while others were tested as possible poisons. The work was undertaken under the direction of Prof. H. Maxwell Lefroy for the Zoological Society of London, during the summer and autumn of 1915. The experiments in connection with Blow-flies were made in the Society’s Gardens, Regent’s Park; those on House-flies, at Acton Lodge, Brentford; while the work on poisons was done, for the most part, at the Imperial College of Science and Tech- nology, South Kensington. Barts For BLow-F.uigs. The well-known habits of blow-flies, and their attraction to dead and decaying animal matter, suggested three main lines of enquiry for experiment on blow-fly baits :— I. To try to find out whether any of the decomposition pro- ducts or other organic compounds are attractive to blow- flies when isolated, and used as baits. II. To see which of the meaty substances are most attractive, when, and under what conditions. IlI. To experiment in a similar way with vegetable substances, to see if they are at all attractive. The flies used in these experiments were those which were * Communicated by Prof. H. Maxweit Lerroy, M.A., F.Z.S. Proc. Zoou. Soc.— 1916, No. XXXIV. 34 482 MISS O. C. LODGE ON THE most common at the Zoological Gardens during the early summer, Viz. :-— (a) Calliphora erythrocephala and \ m,. BI ye-bottles. 3 WOMMOTE ....-----<-6 (b) Zucilia corsa .........26..2000e The Green-bottle. (c) Protocalliphora grenlandica (released from breeding-cage). (d) Musca domestica ...........0++- The House-fly (scarce) *. (e) Fannia canicularis .........++- The Lesser House-fly. Fe ES COUUTIS Ss heme seas eres The Latrine-fly. UL) ECO IMIG CHSC) ene cee Lp en sea ore The Cheese-fly. (g) Sarcophaga carnaria ......... _ The Flesh-fly. I. Methods and account of experiments with various organic compounds. In these experiments the usual method adopted was to soak pieces of blotting-paper in the different substances to be tested, and to place them inside or outside the wire gauze breeding-cage (in which P. grenlandica were bred). At the same time, controls consisting of similar pieces of blotting-paper soaked in water were placed beside each. The results were compared, and a note made as to whether the number of flies (if any) which came to the chemicals was equal to, greater, or fewer than the number which came to the controls. The various substances used, classified according to their attractiveness, are given below (A—E). A. Substances found to be attractive to P. greenlandica. Honey. Fructose (solution in water). Cane-Sugar molasses. Levulose ,, 55 Beet ,, 5 Cane-Sugar ,, - Lactose (solutioi in water). Urine (6 days old). Maltose 3 as 5 (16 days old). Glucose Ps ss Uric acid. B. Substances found to be decidedly repellent. Pipendine. Oil of Cinnamon leaf. (Enanthol (weak). 53 3 bark. Xylol. >> Sassafras. Oil of Thyme. ; » Cloves. a) aSsiae Camphor. > Java Citronella. Amy! acetate. ; Ceylon Citronella. Methy! salicylate. ; Palma rosa. Anisole. a Baye Citral (strong). s Heliotrope. Ethy1] sulphocyanide. ; Lavender. * Very few house-flies were seen in the Zoological Gardens during these experi- ments, pronably because it was still early in the season for them; although they were never at ali abundant there, even in August and September. ‘ HOUSE-FLY INVESTIGATIONS. 483 C. Substances deterrent, though in a less degree than those given in B. Pyridine. Carbon bi-sulphide. p-Cresol. Aniline. Naphthaline. Guiacol. Phenetole. Toluene. Hydrogen sulphide water. Urethane. Quinol. Dimethylaniline. Butyric acid. Vanillan. Carvone. Ethyl acetate. Quinoline. Allyl sulphocyanate. Anethole. Ethyl] nitrite. Ammonia (weak). Amy] nitrite. Urine (fresh). Lactic acid. Borneol (in ale.). Cedar-wood oil. D. Substances which gave no definite results. Methyl Indol. Methyl alcohol. Tndol. 3-Naphthol. Pyrogallol. Quinine sulphate. Paraformaldehyde. | 3 Mono-methyl-uric acid. Ammonium butyrate. Trimeth. HCl. ss benzoate. Acetal. os valerate. Uric acid (dry) + artificial musk. a-Naphthaline. Ethereal extract of horse-manure. Skatol (strong). NaOH + . & 5 (Gbay). Alcoholic _,, x s Trimethylamine (weak). HCl es * Urea. Precipitate by HCl from “NaOH Tyrosine. extract of horse-manure. Guanine HCl. Precipitate by NH,OH from HCl Betaine. extract of horse-manure. Dimethylamine. Ki. Substances which gave the same results as the controls. Valeric acid. Terpin OH (ale.). Aspartic acid. Potass. salicylate. Formaldehyde. Salieylic acid. Tannic acid. Ethyl formate. Leucine. Phenylacetic acid. Stearic acid. Caffeine. Oleic acid. Acetone. Theobromine. Nothing of much practical value was obtained from these experiments. They gave, however, indications of the likes and dislikes of the flies (P. grenlandica), and so appeared useful in differentiating between the tastes of blow-flies; certain sub- stances (A) were attractive, while others (B and C) were repellent or distasteful in varying deer ees; others, again, gave no definite results (D) or the same results as the contieells (E). Since these experiments were made with one species only, i.e., P. gren- landica, it does not follow that the results will be tr ne for other 34* 484 MISS O. C. LODGE ON THE species also ; in fact, subsequent experiments showed that tastes varied in different species of blow-flies, e.g., honey and sugar were very attractive to grenlandica, but not at all to Lueilia and Calliphora, although some of the substances gave similar results with the different species. The essential oils tested were found to be repellent to grenlandica, and in those cases where tests were made with Lucilia, Calliphora, and Musca, they were seen to be repellent to them also. They may, therefore, be found useful as ingredients in sprays or unguents. Experiments were also made to test the effect of certain organic compounds, etc., on house-flies *. The following methods of testing them were employed :-— (1) In which pieces of blotting-paper were soaked in them and exposed in sunny places in the greenhouse. Substances tested. Results. Ammonium butyrate ........................ Disliked by the house-fiies. es EnzZOATED Soca. s sel 3 #3 bs PAIN ACETAL Ce os yee eee oe eee, 35 i 35 Meth yIaind oles... seer cern ee = = 5 Trimeth. chlorhydrate ........................ PA 5 > AER TII Eo ok: aera 6 tA eS WE et ae mS Be = a Naphthsline gas 27 eee eee eee a 35 = ‘B-Naphthols2"---.-..... eos Seora ee 5 Pa = Ethyl sulphocyamide [2-0-2 22-. 6-22. =e ar Bs MS Bect-SuUsaeMOlASSES pees eee ee oe fe fe Uirethaneieeres. 355. eho eee ae. gi 5 Pa Guanmerki@ lee. 5 ee aoe ire tet 55 58 bs Guanadine HCi (+ NaOH) .........0........ 35 ss ‘3 Trimeth. chlorhydrate (+ NaOH) ......... 3 S bs W@ UGGS. ocse sce 255-222 ces 22-8 ose eee oem a ee Lewatlies Setibledtonau hs Artificial musk ...:..........................-.. _ Disliked by house-flies. (2) In which the substances were added to mixtures of casein, sugar, and water, and exposed for two days on the bench in the “ fly-room ” at the Imperial College (December). All were harmless to the flies, nor were any as attractive as the controls. A summary of results is given below :-— Substances tested. Results. 1255 .€.c) Casem 1) 222s ( : 12°5 c.c. Brown Sugar + ( _ A Very attractive throughout ten iclc uWater, = ee Wit ssiiia Sica aa) ee whole expenments (Control) 2 2.4..: ( PAA LOPS SalrOlap A seen a. ee eee nat EAC En ye! P2idrops santaleAce 2 sie < Sue he 5 ; flies repelled at first. = The account of these experiments testing certain organic compounds on house- flies is placed here, so as to be available for comparison with the similar experiments cu blew-fiies. . HOUSE-FLY INVESTIGATIONS. 485 12 drops Hellibore+A.. eesecseceeee--e------ NOt very attractive, non-poisonous, 12 drops Pyrethrum Extract (Ale. ) A ae ee = . Unattractire, until Xylol had iPidraps Xylal yates ons. os se sae asco evaporated, when flies came to feed. ( Unattractive at first, later : a tew flies came. | Repellentat first. Second day 6 drops Oil of Geraniel+ A 6 drops Oil of Thyme+A ........2..2..:.2---.<- when smell of thyme less, a few flies came. Bread soaked iniwaters:2 2-2 tee Very attractive while moist. 25 c.c. Casein .....- a 25 c.c. Brown ees 25 e.c. Water.. Rid ee aa Very atiractive. gre (Control) 12 drops Fusel O14 B.. meee eemeatees SLi Se tart yes 1 c.c. “ Army Spray 7+ a ae ae ~ , NON-poisonous. (3) In which certain substances were tested against Bacterized Blood*. These experiments were made in the green- house in July. In some (a) a drop of the blood and another of the substance to be tested were placed on a piece of blotting-paper, side by side yet not touching, while in others (b) the two drops were mixed. ( Vinegar. ! Propionic acid. Absolnite alcohol. 95 %/, 2 Xylol. Amyl e Methyl salicylate. (a) } Carvone. (5) 5 Butyric acid. Pyridine. Acetic ,, Oil of Cloves. 1 Formic acid. i | Acetal. j lt was noticed that, generally, the house-flies disliked coming - in contact with the chemicals, although they did not appear to detect them from a distance. They fed greedily at all places where they could get at the blood without touching the chemi- cals. A few ilies, however. came for a short time a formic acid, methyl salicylate, butyric and acetic acids. Xylol was distinctly repellent, but after it had evaporated the flies settled on the blood. (4) Other experiments were also made with Dried Blood, one day old, mixed with water and also with casein and sugar baits, etc. It was found to have no special attraction either for house-flies or blow-flies, apparently making no difference to an attractive bait, nor rendering an un- attractive one attractive. * This Bacterized Blood (é.e., Blood prepared with putrefying Bacteria) was found by experiment to be very attractive to bouse-fiies, and also when mixed with casein, sugar, banana, and water. Apparently it had no special attraction for blow-ilies (Lueil ia and Calliphora), either alone, or mixed with casein baits, with or without shredded meat. 2 486 MISS O, GC. LODGE ON THE Il. Methods and account of Eaperiments to find out when and under what conditions meaty substances are most attractive to blow-flies. (June and July.) All these experiments took place out of doors, the baits being exposed in sunny places in the Zoological Gardens ; for it was found that even when a very attractive bait was placed in .the shade, practically no blow-flies came to it, although they had been swarming round it when it was put in the sun. The different substances were at first placed in shallow dishes, partially covered by glass plates, so that the flies could enter and feed, and the smell diffuse into the air. Later, however, it was found more convenient to use glass pickle-jars (height 9 inches, diameter 4 inches) fitted with wire-gauze funnels, which prevented the flies from escaping when once they had gone inside. The number of flies caught in these jars was noted each morning and evening, but wine dishes were used they were kept under as continuous observation as possible during the day, and the attractiveness of the bait estimated by the number of flies which had fed during that time. The average length of time of each experiment was from six to seven days. The first substances to be tried were meat and hard-boiled egg, of different ages. It was seen that after becoming blown their attractiveness was increased, This was especially the case when they had been kept fora few days, and were in a more or less liquid condition, owing to the digestive action of the maggots. At this stage they were very attractive to the blow-flies, the meat more than the egg, though numbers of flies came to both. This effect of maggots on substances was further tested in later experiments, when two similar pieces of meat were put out side by side. To the one, maggots were added, while the other was kept covered with wire gauze to prevent flies getting to it and blowing it. It was moistened occasionally with water to prevent it from drying up. When both were similarly covered, blow-flies kept continuously buzzing round and settling upon the gauze covering of the former, while none or very few came to the latter. Other substances were also tried, with like results, though their attractiveness without maggots varied with the different substances, and with the same substance at different stages. Since this was seen to be the case, pepsin was tried to see if it acted in the same way. It was found, however, that both fish and meat after they had been acted upon by pepsin in the presence of hydrochloric acid, attracted fewer flies than did the controls of meat or fish alone. The flies used were chiefly Lucilia. Peptone was also tried, both moistened with water and mixed with bread ; sometimes maggots were also added *. » t+magegots. Dead birds (mostly sparrows). H. Substances not attractive till second day, and then moderately so. Meat + pepsin + HCl. Wish + 4, + ;, Meat + Methyl Indol. I. Substances unattractive to Blow-flies. Blood. Bactevized blood, z.e. blood prepared with putrefying bacteria. Fresh hard-boiled ege. Fat. Freshwater mussel (Anodon). Hard-boiled egg + Methyl Indol. Fresh meat + Skatol. Unblown meat (covered by wire-gauze trap). Alcoholic extract of putrid meat + bread. A 5 4 » +bread + maggots. si Ms » ege +bread. ” 33 bb) 39 ate 3) or maggots. * The actual count was 138 Lucilia, +49 Calliphora, +51 Fannia, + 97 G@ren- landica, +57 flies too damaged to recognize, +4 which escaped. Total 396. + In these and all subsequent experiments the blow-flies used were Lucilia and Calliphora. P. grenlandica were only used in the first experiments, when it was still early in the season for the other species. HOUSE-FLY INVESTIGATIONS. 489 IIL. Experiments with various fruit and vegetable batts. ( June-July.) These experiments were carried out in the same way and under the same conditions as those on meaty- substances. Shredded meat was sometimes mixed with the baits, but even then they were never so attractive to blow-flies as meat alone. None of the substances, even after they had been kept for a con- siderable time, were found to be at all attractive to blow-flies, though in some instances a few flies came to them. These sub- stances are marked with an asterisk (*) in the following list :— Hay infusion. Boiled cabbage. taw cabbage (cut up and moistened with water). Boiled lettuce. Raw ; (cut up and moistened with water). Boiled grass. Grass + water. Boiled potatoes. Raw » ‘(cut up and moistened with water). Water in which cabbage, lettuce, and grass had been boiled. Dates. > + water. Banana. * 5, +maggots. eee. ate >» +t+meat. * » +meat. >» +vinegar. Squashed strawberries. *Strawberries + meat. * i + ,, +maggots. 5 + yeast + 7 os +maggots. *Strawberry jam + meat. * ss » + 4 +maggots. *Stinkhorn fungus (Phallus). Further, certain household substances were used, such as bread and cheese, milk, vinegar, etc., as well as mixtures of casein, bread, and water, both with and without maggots. The results are given below :— Batts. Results. redcley eres eee eee eee ee OMatiuachive: SAC ANE NLS) bash Gociahs ods demcndbactouG pa JBFCOAN WGN soo nagcoouns no, denne noseee 5 5 5 AP WENGE coonna ccsoooeas >» ss te eg A OTCRIG Gonos 20 Ns SP gy SP AVERISD ced boo op Oxo + bread + water ...............0.- os oF Dar pp SP MERIITOUS S05 9 reader ivine Saree esse eee eens 60 USS eee S EN tL iaeacatonk aca 33 ip 33 or 3 + maggots 2 39 490) MISS O. GC. LODGE ON THE Baits. Results. Bread + cheese + milk { Few Blow-flies, Fannia, and many Piophila « b i eee cee ceeecs E>) (caught. ( None caught till 2nd day, when flies (as above 5 $s Yo So ick Cotte snete iiss ABE ONS a) caught. 0) Slits let Avs ie REN hed i Blow-flies + 12 Fannia+1 House-fly came on Ist day. Kept for 15 days and few caught SP gg SP gy SP TRIEIONE each day. Mullikesire’s heeereseeee eee taco eee Uattrachines 9) SOUW ie... ee eecsseeeee es. Hew Calliphora caught. Casein + water .......0....00..... ( Fanniat+some Blow-flies and many Piophila py AR Sp PHO ECRONES Goose 000 ( caught. (er ie and 15th days many ENG caught when no meat baits exposed). On most 5 ay aD leven ae) days a few Blow-flies as ol as Fannia aud Piophila caught +a few Musea. Musca + Lucilia and Calliphora + few Sar- cophaga + many Piophila caught—both at in, ie the Zoo and when put by manure-heap at ie Y Po CACM tay ae TS Brentford. YF wD © wm SUES ROS Summary :— It was found that for Blow-flies— (1) The most attractive baits were :— (a) Liver + maggots. (6) Brain+ (@) Imisin -b ,. (¢) Hard-boiled egg+ maggots. Of these, liver + maggots gave the best results. 9? (2) Meaty substances of all kinds were more attractive than either chemical or vegetable substances. More flies came to them than ever came to the vegetables or chemicals, even when these two latter were the only available baits for the flies; although certain substances, notably mixtures of casein and peptone with water and bread, showed possibilities of being good baits when they were the only attractions present. They then caught a number of different species (i. e. Musca, Calliphora and Lucilia, Sarcophaga, Fannia, and Piophila). (3) The digestive action of blow-fly maggots on meat, etc. added to their attractiveness. (4) The best way to attract and catch blow-flies was to put the baits in sunny places. (5) The great drawback, however, to the general employ- ment of any of the meaty substances, or of the mixtures of casein, water, and bread, or of peptone, water, and bread, is the most objectionable smell which is given off when they have been kept for any length of time ; yet it is only after keeping them thus that their most attractive stage is reached. It would, however, be possible to use them out of doors, in the garden, or elsewhere away from the house, where the smell would not matter so much, HOUSE-FLY INVESTIGATIONS. 49] Barts For HovusE-FLIES. Methods and account of Kxperiments. These experiments on house-fly baits were carried out at Acton Lodge, Brentford, during the latter half of July and in August. The first experiments were made out of doors (a) near a manure-heap, from which flies were emerging, (6) in or near a forge, where a number of house-flies were congregating in the warmth. In neither of these cases, however, were the conditions very favourable, chiefly on account of the wet and windy weather. Later, half a bushel of house-fly pup was collected from a neighbouring manure-heap, and placed in a greenhouse, where most of the subsequent experiments were made. This green- house was empty, excepting for some tomato-plants on the upper shelves (the flies did not like them, and would not settle or sit on the leaves). Ventilation was secured by nailing muslin over two of the windows. Very soon the greenhouse was swarming with flies, which had emerged from the pupsw. These flies were used in the experiments. The supply of flies was kept up by breeding them in artificial media, consisting of mixtures of bread, casein*, water, and banana, and banana-skins, surrounded by a dry layer of cut grass, leaves, ete., in which the maggots could pupate; all of which were placed in large saucers on the floor, under the shelves. It was thus possible to keep up a continuous supply of flies. In experimenting, the mixtures to be used as baits were placed in glass jars with wire-gauze funnels (the same as those used in the blow-fly experiments). The date and time of starting the experiment were noted, and usually a morning (9-11 A.M.) and evening (4.30-6.30 p.m.) count of flies taken, when the jars were emptied of flies and the dead (if any) removed. The average duration of the experiments was 8-9 days. The substances tested were very various. Mixtures of casein and peptone, which had seemed from the blow-fly experiments to be promising baits, were tried, as well as all sorts of other substances, e.g. sugars, jams, fruits, ete., both alone and mixed with casein and peptone. After some time it was found that the casein mixtures were more attractive than most of the other substances used. Hence experiments were made to try to discover when, and under what conditions, and mixed with which substances these casein baits were most attractive. It was found that the best results were olbuaiaee with approximately equal parts of casein and brown sugar; or casein and banana; or * The idea of using mixtures of casein, banana, etc. for breeding purposes was suggested by the fact that eggs were laid on some of the casein and banana baits in the jars, and that the larve lived in them. It was found very successful for breeding and keeping up a continuous supply of house-flies, both in this greenhouse and in the “ fly-room” at the Imperial College. Flies were bred in large numbers from August 1915, and are still increasing (June 1916). 499 MISS O,. C, LODGE ON THE casein, banana, and brown sugar; or casein, bunana, and golden syrup; or casein and bread —all of which were mixed with sufficient water to make into a paste. These mixtures, more- over, generally required a day or two in which to ripen before reaching their most attractive stage, which then lasted for a considerable time. They were tested, amongst others, against the well-known recipe of beer and sugar, which was found to be immediately attractive, though it did not remain so for any length of time, only about two or three days. It was subsequently seen that the addition of beer, or preferably stout, to the casein, sugar, and banana mixtures, or to casein alone, made them immediately attractive, and that, when the effect of the beer or stout had gone off, the casein mixtures were themselves attractive and remained so for many days. Several of these casein mixtures were also tested in the kitchen, but only a certain number of the flies were caught. This was probably due to the various counter-attractions present, though on one occasion * twenty house-flies were caught between 5 p.m. and 10 a.m. the next morning. This number was well over half the flies in the kitchen, though on other occasions fewer were generally caught. Yet these baits, even in the greenhouse, where as many as 600 have been caught in 6-7 hours, never by any means caught all the flies, but only a proportion of them. Other methods are likely to be found more effective in ridding kitchens of flies than the use of baited traps, e. g. spraying or fly- papers. Other casein baits were also placed in different parts of the garden, as wel] as by the dust-bin, when various flies were caught, including Musca, Calliphora, Lucilia, Fannia, a few Sarcophaga and many Borborus; though more blow-flies were always caught with meat baits. A summary of the results obtained from the experiments on House-fly Baits is given below (J-O). The substances are classified according to their attractiveness. (N.B.—The days only are given on which the largest number of flies were caught. In most cases fewer flies were caught on the other days as well.) (J) Substances found to be the most attractive to House-flies. Days on which most flies were caught Baits. (i.e. approximately 90-100 or more Jlies at each of the counts). Casein + golden syrup + bread + water ..........00eeeeeeeee 9-10 5 APIDOS SOVGENE CE EMEP is oso son conens dooce nen covlagn ose 3-8 Gp) TRIODREEKOL SEN GENBED® “con osc usdano sebuduoddbacane voueao cas 3-6 » +brown sugar+dried blood + water ............... 3-6 ” IP dy aa)nteat Fass 2) at ya Mae e.oushe 1-4 * The bait consisted of casein + brown sugar + beer (3 days old). HOUSE-FLY INVESTIGATIONS. 493 (Shige! lapeaevel SEWAGE shoo sbe soo sco ace unadps see tds sop ace Sor aes Sy) cibmowml sugar wate acs sgcn. saree neeesean ade -=c eae 5 +banana+water sy ec ea ele >» + >, +brown sugar A eHOR - » +golden syrup + brown sugar + ater » +white sugar+ water Ghee 5 Sy Ch sissies Beer + brown sugar Casein + ,, SRS LOU beck ese aa stseeaeercmncacineentatin Beigel Raa ah sO 1 CE ACS SG a a ab eeu » + stout.. Brown sugar + Stout: ; Casein + golden syrup + Patou. Pudding (nade of egg, aeuting & sugar all “enfl) Horlick’s Malted Milk + water *....................... FF ey ear PEE ail OUND O Weenies Eva aE Cin +banana+ Malt Extract + water.. 55 APIDRO iM SIMEROS BVEINEE ooacdecseraceacesndnaenoccasueee 22 oF 39 Lb} + 33 ar bread » +golden syrup+ Dread + water Cer wide +milk + sugar * Bird’s Custard Powder + sane sugar + tmilk # 7 Ten Boiled milk+ white sugar+starch ....................- Casein + brown sugar+ water (boiled together) Dutch cheese + brown sugar+ water ...............5.....60. Casein + water (boiled together) ............ 00.02. ..0.:00:008 oo ot ahead ola ater eal i J PhO hoODhHaDE | S G CO od moh 55 & | [om ie sal Loe & bo ny @ | bo bo Cag CO Cun ch chnec oir coy a ecaa are amcor I lor) (K) Substances attractive, though vn a less degree than those given in (J). Days on which most attractive Baits. (when approximately 60-80 flies caught at each count). Casein + brown sugar + water... 0.0.00... ...cse cesses eee eee er A Coho tawaibe ery assaienen see eee eee eaeeee Mee ate al te GEC beeen ay ae state hiece Panes seeusae ns » tbread+ banana + water » twater (boiled together) ................0.-2..102- +0 Toasted cheese ye Casem + ID own sugar + tay 3-4, 11-12 3-6 3-4 1-2 1-2 1-2 (LL) Substances to which Flies still came, though never more than approximately 30-50 were caught at each cownt. Baits. Banana + maggots Casein + she) chibreadite:watel sata ccseuseseaessant: Brown sugar + Alcohol+ water .......... Casein + water rae » +brown sugar + beer.. Horlick’s Malted Milk + tomie sugar + oie Rte ARS BUR Bird’s Custard Powder + boiled water Days on which the above number of flies were caught. e es ea arc Ae trae mance me be OD Ln) bo | DO em b * Most of the flies died which fed on the three baits marked with an asterisk (*). 494 MISS O. C. LODGE ON THE (M) Substances to which Plies still came, though never more than about 20--380 were caught at each count. Days on which the Baits. above number of Jlies were caught. Cxseinl-F brown) sugar - water... ...---.0s-eseeedseceee earls 3-4 & 7-8 Sete tAW Ibe an Gatien touts i Aleoton aba weer sG ra naas 1-2 my apeoclen EymabAS eg, Se) Gy dnodannsscoonadace 7-8 TpYoNUUYo lit con cree 228 Reetae onee en Rone nar urboy aan eGh adn goacdon: 1-4 Moastedicasemm)-wahewersenceree eae esate mee eee eee 1-12 @asemniseibrea det aye) hh ieee aera ae pes ee 4-6 (N) Substances to which never more than about 10-20 came. Days on which the Baits. above number of flies were caught at each count. Goldentsynup taal coholimesrncccresete tee eee eee eee ee 1-2 Brown sugar + _,, Ee PSCC Her SSO E a OUAOCORACECE 1-2 Casein + brown Boar mnciten EE HEE Asan SioesGaos ate tEe 1-10 >» +water Este 1-4. Boiled milk + white sugar 1-2 3 Beal ETSI 0) 0) Has eS Ege tae Sea A Aan nnn Sne GaWUNG SUE HAG oa Nas 1-4 » cheese+ water 1-2 Dutch ,, 1-2 (0) Substances unattractive to House-flies, and to which Sewer than 10 flies at most came. Baits. Days exposed. Green treacle + bread 1-6 Golden syrup+_,, bet 1-6 Casein + green ener bread -hwaten® Senne eee 1-6 Peptone+ ,, ee ecb rinuesis cates atss 1-6 5 TEROCOD AVAUWIOS? fy 3P sq ooneccdconeponsee0n00 1-6 Casein + vinegar aetinaietes 1-6 a et VeaSU eas 1-2 » +brown sugar + yeast + ater Guana seueue cantice 1-2 fy SPNAUAG ENP SES GEIS TP WENGE? con can ccoonscne cooansanacnnoed 1-2 Peptone + toffee .. Re daeeewane 1-4 a ata auoater wares cous a Bere aN 1-4 of ary Bee Uae Scag)! SPA VGEISMUpsoben das dapwosaaslnaa 1-4 Casein + toffee (cooked together) 1-4. yy AGP ose RAMA TROLS Ga en stort seumemec ase ae 1-4, Toffee +maggots ............ er 1-4 Casein + bread + water (at manure- vehoan) Nee ae hel Scere cee 1-4, » tyeast + vinegar + maggots........0..0 cece cee eee 1-4 Sy TDS HOY SUPE SE WENIEIPse pisonosoaod ena ceo ods esvo0a Gonos 1-8 SF crfexa)KOLSVHUEN PEN Opa Tn aeannn one adeuosuadadenssad sednc 1-12 Alcohol + water . a tiaeoemamaceee 1-4 Casein + brown pie ar erater aniursjore ts ne arAe CE MER CRE ee 1-6 Jam.. Saat Baepetre oddoce one Coo 1-4 Casein-+ Kepler S ; Malt Tn iracea aberijacase ee ceeres 1-8 een SUGAR eee 1-8 5, + Kepler's Mait meets 1-8 HOUSE-FLY INVESTIGATIONS. 495 | @ @ Brown sugar + Kepler’s Malt Extract eli abemned ace Wall Gekiixtnac tect yeeeecict aise asset mriass ev diads evsacdesbecescostiene Casein + water (boiled together) ............ 0.2... 00.00.00 eee > +banana+ water Rite CHROME KO wc Gee been eae Ou NBER er aca IC Iae eR ame meee Bird’s Custard Powder + boiled milk........................ Te eee Sie odo Ae a & @ —4 4s 3 » + 5 Wwater+brown sugar ... -8 Brown sugar +starch (boiled together)..................... -12 Starch + boiled water PoreBhoR aoe a ano Te —4, Casein + brown sugar + dried blood + water ............... -8 ssl EE 5 ge DOCERIWAEL Aho. fer conte con Sieeetee 1-4 @ondensedamalkaersare accent ceca cere cceeee ects 1-6 7 hy joc ste) UUM eset Ae ke are tint fe ie tae et 1-6 Bread + Dutch cheese + water ................0.... cece eee ee 1-6 “ARideeseMoodidce Watelacreaecouecrsenee sense aeens nee 1-5 55 » +brown sugar+bread+water ......... 1-5 The main conclusions arrived at from these experiments on house-fly baits were :— (1) That the most satisfactory baits consisted of— (a) Mixtures of casein, sugar, or some other sweet stuff and water, with or without banana, in approximately equai proportions, to which stout or beer can be added, in which case they became immediately attractive, otherwise one or two days elapsed before the most attractive stage was reached * ; (6) Horlick’s Malted Milk mixed with water ; (c) Banana, especially when over-ripe ; (2) Custard puddings ; (¢) Cornflour, milk, and sugar ; (/) Bird’s Custard Powder, milk, and sugar, ete. (vide list J). (2) There are advantages in using the casein mixtures rather than the other attractive baits in (a) the comparative cheapness of casein (1s. 4d. per lb.) and (6) the little trouble the baits take to prepare, the ingredients simply requiring to be mixed into a paste with a little water ; (c) The length of time they remain attractive (7-10 days as compared with the 2-3 days of beer and sugar) ; (d) The absence of any disagreeable smell when the casein is mixed with sugar, golden syrup, banana, ete. * In November and December, however, the house-flies at the Imperial College came in swarms to feed on the casein mixtures as soon as they were placed on the bench. They even came to bread ouly. Was this because of the difference in the hunger-states of the flies at these different times, or were the casein mixtures more attractive when simply put out on the bench without being covered by a trap ? + Sugar, beer, alcohol, etc. had another advantage, as they appeared to preserve the baits trom going mouldy, which often happened when casein was used alone, though this did not necessarily prevent them from being attractive. The great advantage was, however, that they kept them from giving off the most offensive smell which was the case when casein and water, and casein, water, and bread were used. 496 | MISS O. C. LODGE ON THE Yet in these experiments, at no time were all the flies caught, but only a proportion of them. This was, however, only to be expected, judging from the catholicity of their tastia: yet they have their likes and dislikes. It was found that the attractiveness of most substances varied at different times. The weather appeared to influence them—as a rule fewer flies were caught on dull days than on sunny ones. Possibly, also, flies of differ ent ages and sexes have different likes and dislikes, oll of which would affect the numbers caught and the attractiveness of the baits. III. Porsons For Furss. These experiments were made with the object of trying to discover a substance which would be poisonous to flies—especially house-flies—and harmless to man. It should not be distasteful to the flies, otherwise they will not come to feed, and unless cheap and easily obtained will not be suitable for general use. The following methods of testing the different substances were employed :— (i.) To expose an attractive bait, to which the poison had been added, in a place where the flies were free to come and feed, or not, as they liked. (ii.) To test the poison on flies which were confined, and must either eat it or starve. (i.) Account of Kxperiments on Poison-baits when Free Flies were used. These experiments were carried out in the greenhouse. The flies used were chiefly house-flies, though a certain number of blow-flies from traps were released from time to time. The substances used were generally placed in large saucers, in sunny places on the floor. They were then watched, to see whether after feeding, (a) the flies fell over immediately, ° apparently dead, or (b) crawled for a distance and then fell over on their backs, or (c) whether they flew away apparently unharmed. When the two former occurred, as many of the “corpses” as could be found were collected and kept till the next day, to see if they would recover. It was thus possible to obtain some idea of the effect of the different substances on the flies, and also to see whether their addition made any difference to the attractiveness of the baits. They were generally added to mixtures of casein, banana, sugar, and water. Controls for comparison were arranged for each series of experiments. A list of the various substances used, together with a summary of results, is given on p. 497. HOUSE-FLY INVESTIGATIONS. 497 Substances tested. Results. Roe Did not poison house-flies or blow-flies. ’ Boueaad (oe Made no difference in attractiveness of bait for house-flies, De oes ee but were repellent to blow-flies. Picnibvacsa Made no difference in attractiveness for house-flies or ( Gye g low) blow-flies: both fed greedily upon it, and were appa- Mera ine ance 2 ENCE rently unharmed ! Amy] alcohol......... Strongly repellent to both house-flies and blow-flies. Repellent to house-flies; but after the smell had gone’ off the baits were again attractive, and eges were laid and larve livedin them. Flies were killed when it was poured into trap containing them. Amyl acetate ......... ect ie ¢ Did not kill house-flies, and made no difference in attractive- ntimony oxide ... % ness for them Acetaldehyde......... Disliked by house-flies and blow-flies. them. Next day no apparent difference seen in attrac- tiveness of baits. Flies were killed when it was poured into trap containing Westoran ............ Certvin experiments were also made to test the poison-effect of paraformaldehyde and formaldehyde. Some typical results are given in the table on p. 498. It was not possible to arrive at any very definite conclusions from the above experiments with formalin, as the results were so varied. Sometimes the flies died after feeding on the mixtures, while at other times they were apparently unharmed. Some days they came in large numbers to feed, and on other days few or none came. Generally speaking, more seemed to come on fine than on dull days. One thing, however, seems clear, which is, that if formalin is used in practice for ridding rooms or buildings of flies, the “corpses” should be swept up and burnt as soon as possible, so as to prevent any possibility of recovery. 2 It was, however, felt that further and more accurate experi- ments should be made to test the poison-effect of formalin, etc., on house-flies, where known quantities of formalin were added to known amounts of bait. An account of these experiments is given below. (ii.) Account of Experiments on Poison-baits when House-flies were confined in cylinders. In order to secure more definite results than was possible in the greenhouse, the following experiments were made at the Imperial College of Science, in one of the laboratories, having an ordinary roof with no skylights. hither the breeding-materials, maggots and pupze from the greenhouse, were transferred. Very soon enormous numbers of flies had emerged, which were used in the experiments. The supply was kept up by breeding them in the same way as before. The substances to be tested, placed on pieces of glass, were fed Proc. Zoot. Soc.—1916, No. XXXYV. 35 498 MISS 0. C, LODGE ON THE B . PRNIIDES RAN Ree aits, With Paraformaldehyde added. \(A.) (a) Various casein, | Made no difference sugar, and banana to the attractive- mixtures placed in ness of bait to saucers in the green- house - flies or house. blow-flies. Harmless to both. | | | | | (G)VOMicat a ee eteael ks eee eet (ce) Custard Pudding. (B.) Baits consisting of casein, sugar, and (OY Aovotinee’ Tet water were fed to ani dos tuo@ars : re da house-flies enclosed int ae Ren eb ae in muslin cages in liecdeemeetine a 2 | greenhouse. Sill alee. \(C.) Balloon trap set| —......... | over casein, sugar, and water mixtures in greenhouse. | | \((D.) Various casein, | Sometimes un- attractive for many days: other times attractive on first day. Occa- | sionally one or | two flies died. | sugar, and water baits placed in jars with funnels in greenhouse. Results. AL a With Formalin Controls. added. Used strong. Repellent | Attractive to house- to house-flies and| flies, many of blow-flies. which fed—as Used weak. Repellent well as some to blow- flies, but blow-flies. house - flies seemed not to detect it until sufficient had been absorbed to kill them, or render them helpless. In no case were all of these latter found to be really dead, a certain number recovering after a time. In one case, out of the 600 picked up as dead, 21% had recovered the next morning. The pro- portion of recoveries was often larger than this. Repellent to blow-flies. F’. added while pudding hot. Very attractive to house-flies: very many fed, and soon died in and around the saucer. (1) Flies still alive after three days, and then released. i) Many house-flies came to feed, which were afterwards caught in they were kept for two days and then released as flies still alive. Generally attractive for one to three days. Many flies died. Attractive to blow- flies: very many came and fed. Very attractive to house-flies. balloon traps, where Attractive: many flies caught. None died. HOUSE-FLY INVESTIGATIONS. 499 to house-flies enclosed in glass cylinders with muslin tops (height 8 inches, diameter 9 inches), which stood on the bench. When flies were needed for the cylinders, either they were taken from those caught in balloon traps set over the breeding-saucers, or pupz were placed inside the cylinders to hatch out, ete. In each experiment the following points were noted :— (a) the date and time of starting ; (6) the source of the flies ; (c) whether they came to feed at once ; (zd) the number of flies (if any) lying apparently dead on the bench, inside the cylinders, (1) after the first hour, (2) each morning and evening ; and (e) whether any were feeding at those times. The experiments usually lasted four days, as any substance which failed to kill by that time was considered useless. At the end of the experiment a count was made of the total number of males and females which had died, and also which had lived to the end of the experiment, when they were etherized before being counted. The baits used were mixtures of casein, sugar, banana, and water; that most generally employed consisting of the following proportions :— 20 ¢.c. casein + 25 c.c. brown sugar + 25 c.c. banana. (a) If the poison was a liquid, it was simply mixed in with the casein ete. (d) If it was soluble, it was dissolved in 25 cc. of water and added to the casein etc. (c) If it was insoluble, it was mixed with 25 c.c. of water and added to the casein ete. Controls with clean baits—i. e¢., 25 ¢.c. casein + 25 ¢.c. sugar + 25 c.c. banana + 25 c.c. water—were set up for each series of experiments: usually one control for all the experiments made on the same day. Details of these experiments, with percentage of deaths etc., are given in Table IT. The results obtained from the experiments on poisons, when tested on house-flies enclosed in cylinders, were not very decisive (Table II.). No substance was found which killed a really large proportion of the flies. Tables ITI. and IV. respectively give the poison-mixtures having the largest percentage of deaths on the first day, and on the second day in cases when none had died before that. Substances which killed later than this, or where the death-rate was less than 10 per cent. on the first or second day, were not considered of much practical value. 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No Baits. | Percentage of | Percentage of | Order. in (For full details, see Key to pure poison in Flies which died Table IT. Table L1., p. 517.) whole mixture.; on first day. | eaters za ke ote os ee |r | | 1. 25 25 c.c. 30 p. c. Formalin + vi. 75 3L | 24. 0, Sida 0 pe eases | 8 27 | 2. 20 BOG, Dw oy ML | 75 27 57 lgrm. Potass. salic. 9 + vill | 1 27 ae 58 lgmm. Tannic acid + vill 1 23 eins | 23 25 c.c. 86 p. c. Formalin + vi. 9 22 oe 30 WC, NG oy 6 22 5. 7 5 c.c. 29 p. c. Ss +1, 5 21 | 6. 31 25 c.c. 36 p. c. 9p + vi 9 19 Ce 17 25 c.c. 28 p. ¢. % + Vv. 7 17 8. oT 25 cic, 2S psc. * 5, + vi 69 16 6 f | 47 5 c.c. 5p. c. Us | 1:25 15 | 18 25 c.c. 36 p. c. ye +. | 9 15 | 10 5 c.c. 40 p. c. s +i, 7 14 | 10. 29 Bon Ome 5 eu | 10 14. | | 26 SCO, OR yl ae we | 7-25 4 | 11. 32 25 cc. 25> p.c. 5; + Vi | 63 12 | 12. 51 2 c.c. Carvone + vill 2 10. ae TABLE LV. Poisons which killed largest percentage of Flies on second day, when none had died on first day. Percentage of Flies which died on second day. | % | Ref. No. Baits. | Percentage of Ordev. | in (For full details, see Key tos pure poison in | Table II. Table II., p. 517.) whole mixture. | Atuer hy | Ie | 5 c.c. 40 p. c. Formalin + i. a. 2 fe eo eles 5 erm. NH\NO; + viii. 5 het rae 116 2 erm. Sb. oxychl. +X | 2 Necmaede ce: 84. 25 c.c. 40 p. c. Formalin + vi. | 10 I Be nes 5 grm. Sb. oxychl. + xi. R | 68 lc.c. Chromic acid + viii. | 1 a pe Os lgrm. Oxalic acid + viii. | 1 | 8. 62 lgrm. Potass. salic. + viii. | Ht ieee 118 Starved Flies. | aw ¢| 95 2 erm. Potass. bromide + viii. 2 my | 45 25 ¢.c. 1p.c. Formalin + vi. 0:25 11. 19 25 c.c. 32 p. c. an + v. 8 12. 13 2c.c. 24 p. ¢. 5 ap Je 2 | | a | 66* 53 47% — | ON * No record was made on the first ve in these two experiments. not known whether any flies died then or not. 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Zoou. Soc.—1916, No. XXXVI. 514 MISS O. GC. LODGE ON THE and this was with a 30 °/, formalin bait (7. e., 25 c.c. of 30 °/, formalin in 75 ¢.c. of casein mixture), making 7°5 °/, of pure formalin (‘Table III.). Amongst substances which did not kill until the second day, excluding No, 5* of Table 1V., ammonium nitrate (2. e., 5 °/, pure NH,NO,) gave the highest percentage (538 °/,). Next came 40°/, formalin (45 °/,), and then antimony oxychloride (37°5 °/,). For the percentages with the other substances, see Table IV. Other experiments were also made to see what was the effect of first feeding a poison-bait to the flies in the cylinders, and then a clean bait to the survivors. Details of these experiments, giving percentages of deaths, etc., will be found in Table V. The results seem to show that the flies died after a longer or shorter time from the effects of feeding upon the poisons, and not from starvation due to not feeding on the baits because they were distasteful, for in most cases flies were seen to feed. Also, in the experiments on starving flies, it was seen that these flies could live longer before succumbing than did the flies which had been given poison-baits ; for in these the percentage of deaths during the first hours was very high—much higher, in fact, than amongst the starved flies for a corresponding length of time. Again, the percentage of deaths in those experiments where the poison-bait was left for more than one day was much lower than was found amongst the starved flies for a period of three days or more. It appears that when flies died from the effects of feeding upon those baits in which the poison was more concentrated they quickly absorbed sufficient to kill them, but that this took a longer time with weaker poisons, unless the bait was very attractive and they fed so greedily upon it as to imbibe a sufficient amount of the poison to kill them in a shorter time. This is apparently what happened with a 10 °/, formalin bait, which was very attractive, and to which very many of the flies came to feed at once and continued feeding for some time. On the other hand, if they fed less continuously a longer time elapsed before death took place. Probably the large percentage of deaths amongst the survivors with clean baits, as compared with the death-rate in the controls, was due tothe poison pre- viously absorbed in the first case. Starved Flies—From experiments on starving flies (‘Tables II. and V.) it seems that they show more power of resistance late in the year than in the autumn. For in the experiments made on starving flies in Novemberand December they remained alive without food for 7-10 days, or even longer; while in those made in September and October all the flies were dead by the sixth day. The greater resistance shown by the winter flies than by the autumn ones is what would be expected if they have to pass the winter as imagines. * This is not counted, although it had the highest death-rate, because no record was taken on the first day, and it is very probable that some of the flies died on that day. HOUSE-FLY INVESTIGATIONS. 515 GENERAL SUMMARY. The general conclusions resulting from these experiments on baits and poisons for flies, show aherne — (1) For Blow-flies, meaty substances of all kinds make the best baits, and of these the most attractive was blown liver, several days old. It was found that the digestive action of the maggots increased the attractiveness of the baits. (2) The most satisfactory House-fly baits consisted of mixtures of casein, banana, and some sweet substance (7. e. treacle, sugar, etc.) to which sufficient water, beer, or stout was added to make a paste. (3) Apparently Formalin remains the best poison for House- flies for indoor use, in spite of its somewhat uncertain action. The best results were obtained when 2:5 °/, to 7-5 °/, pure Formalin was used. Nore ON HMPUSA MUSCA. It is perhaps worth noting that the house-flies in the “ fly- room” became badly infected with the fungal disease Ympusa musce in September and October, and died in great numbers, although they still continued to breed. It is interesting to note that however they became infected, the disease followed its usual course and subsided in November and December, when “wild” flies have normally disappeared. Carbolic acid was evaporated two or three times a day at first, and occasionally up to the end of December. Novr oN THE PROPORTION OF THE SEXES IN HOUSE-FLIES (Musca DOMESTICA). (1) The proportion of male and female House-flies was found to be nearly equal in the various counts made on emerging flies. The results are given below :— Be & (a) Pupee taken from manure-heap which hatched out Aug. 7, 1915. 51 66 (b) Flies emerged from pupe bred in greenhouse, Aug. 27,1915... 52 35 (CP DATO F Aes 26S OR VOW Ge 8 Giecsretinac ee iceunee can ornccmencea tienes antees 51 102 (d) Ditto, Aug. oe IRS Sy ee deeaon ae Bao oRace dd con cRerae ave MeO UTED ES 5 39 (e) Ditto, 11 a.m. to 2 P.m., Aug. 28, 1915 Bese es ee tose ca herrea 60 53 (f) Ditto, at 2.45 p.m., August 28, 1916 0.00. ee 121 67 (g) Ditto, at 3.30 p.m., Aug. 28,1915 ...... a YO) Ul (h) Flies emerged from pupe from reeds saucers s Feb. ‘, 1916. 31 27 (2) Counts were also made of Flies caught in balloons and 36* 516 MISS 0. C. LODGE ON THE other traps. In all cases but one, a much larger number of females was caught. This is pro bably to be pecoanited for by the fact that the Giecanece used as baits served also for breeding- materials. The following results were obtained :— A. In the greenhouse. hig S43 (a) Flies caught in jar with wire-gauze funnel, baited with an eight days’ old mixture of casein, water, and bread, 3-5 hours after Amy] acetate had been added, July 25, 1915. mee 1) 2PA7/ (6) Flies caught in jar with wire gauze-funnel, fpaited oni We days’ old stout and sugar, Aug. 1, 1915 . eenae ate ts 25 85 (c) Flies caught on piece of banana, placed on fehtele in sun. A Vers many flies came to feed, and many eggs were laid.) As many as possible of the flies were caught ................:.000 cesses serene eee 16 32 B. In the “ fly-room.” (a) Flies caught in balloon trap, set for 3-1 hour over casein, brown sugar, banana, and water bait, Nov. 29,1915 .................0. 26 ««118 (B) Ditto Dees IO Woe trata ome cy ek Ok tenet (aaa acer a eth ty eacenanne OO Um MCS (ce) Ditto, Dec. 11, 1915.. SOE eng O TO ne Ee ac Ha Cua Eno no aM ecBnds Doaade 24. 36 (ad) Ditto, Dec. 18, 1915 . Be Eesti be eee uc PERL ae a Nate tae ee 43 54 (f) Ditto, for ¢ hour, Dee! 45, 1915. Aun hisehionamsnbened nas Serer 86 =108 (g) Ditto, for 13 hours, Feb. 9, 1916 NS Oe | ee OR ne Ie nt at ae 13 22 (h) Ditto, for 1 hour, Feb. 9, 1916 . Se SOAR oo ae nu Rt emenoaee 31 43 (2) Ditto, for 24 hours, Feb. 10, 1916 Mobis (aa ae ots MR ae ds 28 52 A RoueAll Sessa casose 401 860 (3) Counts were also made of the flies which died naturally, which had been picked up in the “ fly-room” in August and September. The proportion of males and females was approxi- mately equal. The numbers are given below :— Oo: f- ‘(a) Dead flies picked up in fly-room on Aug. 28, 1915 .................. 122 99 (Q)) Irena, Aes COO pss Ay NGI Cosasooosssaencssoncoonscqncocdecososcooce Way 11418} UNO sso coccoaose 254 242 (4) Again, in the experiments where various poison-baits were fed to house-flies enclosed in cylinders (Table 11.) only in 14 out of 69 cases was the percentage of deaths among the females higher than that of the males. List or ABBREVIATIONS. @ Ale. ................... Aleohol (90 ©» unless otherwise stated). Abs.Ale. ............. Absolute Alcohol. Adren.HCl. ....... Adrenalin hydrochloride, *01 °/) solution. Catire iawetaasetens Caffeine. Dimethan. ........... Dimethylaniline. Ethyl.SC.N. ....... Ethyl sulphocyanide. 1056 .... Formalin. Meth.salic. . . Methyl salicylate. Nic.. Pee eNCoume: Potass.salic. ...... Potassium salicylate. TANABE, scooopusooseons LE AMeNGhNR, Salic. acid Sb.oxych. AD CHDs son ec Zn.Sulp.C dry) eecas eth. ... it eo ee (50) ae ER te (DI es ee arb HOUSE-FLY INVESTIGATIONS. 517 Salicylic acid. Antimony oxychloride. ‘Turpentine. Zine sulphocarbolate. bait dry or getting dry. house-flies used in experiments after they had recovered from being etherized. few flies feeding on bait (z. e. about 3-6 flies). many flies feeding on bait (7. e. most flics in cylinder). bait moist, often with liquid coming out at edges. flies helpless but alive. some flies feeding on bait (7. e. about 8-10 flies). flies came at once to feed on bait. flies did not come at once to feed. flies came at once to bait, but did not stay. pupe (7. e. flies which had emerged from pupx placed in cylinder). Flies emerged from pupe (p), and which had been given no food for several hours before experimental bait fed to them. Flies newly emerged from pupee (p). The index numbers to reference number of experiments in Table II. indicate that the same control was used for all the experiments with the same index, e. g. (41), (42)2, ete. Key to Mixtures useD As Barrs In EXPERIMENTS Mixture i. Mixture ii. (5 only) Mixture iii. (15 only) Mixture iv. (16 only) Mixture v. Mixture vi. Mixture vii. Mixture viii. Mixture ix. IN Taste II. = Approx. 100 c.c. casein. +100 c.c. brown sugar. +one banana. + water to mix into a paste Mixed together at one time, and of which approx. 25 c.c. were used for each experi- ment, and to which Formalin was added. ) =Same as Mixture 1. but of which 35 c.c. was used for the experiment, and to which 2 c.c. of 40/, Formalin was added. =15 ¢.c. casein. +15 c.c. brown sugar. +40) Formalin. =15 c.c. casein. +15 c.c. brown sugar. +10 c.c. water. +5 c.c. 40%) Formalin. —20 C.-C. + 25 ¢.¢c. +25 C.c. casein. brown sugar. Formalin (percentage specified in each case). Mixed separately for ) each experiment. > Mixed separately for each experiment. = O55) + 25 ©.¢. +25 c.c. +25 ¢.c. casein. brown sugar. banana. liquid (percentage of Formalin, or | c.c. other liquid, specified in each case). J =25 c.c. casein. +25 c.c. brown sugar. +25 cc. 24 % Formalin in milk (é. e. milk (not water) added to make up to 24% F.). =25 c.c. casem. Mixed separately for each experiment. The +25 c.c. brown sugar. various substances used were dissolved in +25 c.c. banana. 25 c.c. water, before it was added to mix- +25 c.c. water. tures, In Controls water only was used. =25 ¢.c. casein Mixed separately for each experiment. Be- +25 c.c. brown sugar. fore the water was added to the mixture, +25 c.c. banana. the liquid (specified in each case) was +25 c.c. water. added to the water. 518 Mixture x. (59 only) Mixture xi. Mixture xii. (92 only) Mixture xiii. (121 only) Mixture xiv. (122.0only) Mixture xv. (128 only) Mixture xvi. (129 only) Mixture xvii. (180 only) Todine (141 only) ON THE HOUSE-FLY INVESTIGATIONS. =26 c.¢c. casein. 1 grm. benzoic acid dissolved in 4 c¢.c. of +25 c.c. brown sugar. 90 %/9 of alcohol was added to the 25 e¢.c. +25 c.c. banana. J water (when benzoic acid precipitated), +265 c.c. water. The whole was mixed into the mixture. =25 c.c. casein. +25 ¢c.c. brown sugar. +25 c.c. banana. +25 c.c. water, in which the various insoluble substances were mixed. =265 c.c. casein. + 25 ¢.c. sugar. +25 c.c. banana. +5 c.c. pyrethrum powder extract (alc.). =12'5 c.c. casein. +12°5 c.c. brown sugar. +12°5 ¢c.c. banana. +12°5 c.c. of (55 exol. mark iii. +1 9/) mustard oil + 0°25 ethyl sulpho- cyanide). =12°5 c.c. casein. +12°5 c.c. brown sugar. +12°5 c.c. banana. +12°5 c.c. 1:20 ethyl thiocyanide + cinnamic + exol mark iii. =Brown bread soaked in (1 ¢.c. exol mark 11i.+1 grm. sugar+18 ¢.c. water). =Paper sprayed with (1 c.c. exol mark iii.+1 grm. sugar+18 c.c. water) and allowed to dry before fed to flies in cylinder. = Brown bread soaked in 3 drops ethyl sulphocyanide + 25 c.c. water. =5 c.c. of (1 grm. iodine dissolved in 5 c.c. of 90%) alcohol). (NB.—AI]I solutions aqueous unless otherwise stated.) ON A NEW FOSSIL BIRD. 519 21. Note on the Sternum of a large Carinate Bird from the (?) Eocene of Southern Nigeria. By C. W. AnpREws, D.Sc., F.R.S., F.Z.S. (British Museum Nat. Hist.) *. [Received and Read May 23, 1916. ] (Text-figures 1-4.) INDEX. SYSTEMATIC: Page Gigantonnisjeciglesomeie eer eee eee Le SEU CDR He ees ee Nee ee ne eee dare tees ame capa) OC) The British Museum has recently received from Nigeria two small collections of vertebrate remains of great interest. The first, presented last year by Sir F. Lugard, G.C.M.G., was obtained in a cutting on the Port Harcourt railway in the Ombialla District, Southern Nigeria: in this the most important specimens are portions of the lower jaw of a primitive Zeuglo- dont, vertebre of a crocodile, and numerous remains of fishes, including Celorhynchus and Galeocerdo latidens ; a large number of Mollusca were also included. The second collection was sent by J. Haglesome, Esq., C.M.G., and is from the same locality as the last; it includes further remains of the Zeuglodont, part of the sternum of a gigantic carinate bird, parts of the carapace of a leathery turtle, probably near Psephophorus, and some por- tions of skulls of Siluroid fishes. It is to the avian sternum alone that the present paper refers. The age of the beds in which these fossils occur has not yet been definitely settled, but from the character of the vertebrate remains it was probably Hocene, and most likely the earlier part of that period. For instance, the presence of Calorhynchus ¢ and Galeocerdo latidens points to the Kocene age of the deposits, while the primitive creodont-like condition of the teeth of the Zeuglodont favours their reference to the earlier part of the period. The Mollusca have not yet been examined in detail, but Mr. R. B. Newton seems inclined to consider that they may indicate a somewhat later horizon. The subject of the present note is the anterior part of the sternum ; it was in two pieces, and the visceral surface was to a great extent concealed by a matrix of extreme hardness, which was difficult to remove. The anterior part of the keel and the body of the bone nearly to the level of the posterior ends of the * Published by permission of the Trustees of the British Museum. + [The complete account of the new genus and species described in this communi- cation appears here; but since the name and a preliminary diagnosis were published in the ‘ Abstract,’ No. 158, 1916, the genus and species are ‘distinguished by the names being underlined. —Eprtor. |] y ALS. W oodw ard, Abstract Proc. Geol. Soc. No. 989 (1916), p. 51. 520 DR, C. W. ANDREWS ON A coracoid grooves are preserved, but behind this only a portion of the middle of the body is present, all the posterior expansion being broken away. The middle portion of the anterior part of the visceral surface is hollowed out into a deep fossa (/oss.) about 2°6 em. wide, deepening and slightly narrowing from before backwards for about 4 em., and then dying away posteriorly. ‘This depression was probably connected with pneumatic foramina, opening into the base of the keel. In front of the fossa above described is a broad transverse Text-figure 1. Sternum of Gigantornis eaglesomei, from above. » natural size. foss., fossa in visceral surface; 7b.i., labrum internum of coracoid groove ; sp.eaxt., spina externa. ridge convex from before backwards and extending between the anterior ends of the prominences overhanging the coracoidal grooves; anteriorly this ridge is smoothly concave from side to side, there being no trace of a spina interna. ‘The anterior ends of the coracoid grooves ave separated by an interval of about 1:8 cm.; the grooves themselves are straight and deep and are overhung by a parallel convex surface (labrum internum, 1b.2.). They make an angle of about 55° with one another and are about 77 cm. long, but their ventral lip begins to die away posteriorly NEW FOSSIL BIRD. 521 about 1 em. from their hinder extremity ; it is not possible to tell whether there was an accessory posterior coracoid groove as in ~ the Petrels generally, that region of the sternum having been lost. Beneath and between the anterior ends of the coracoid grooves isa strongly developed spina externa (sp. eaxt.), the anterior escutcheon- shaped face of which was nearly vertical with regard to the long axis of the sternum; from its ventral anglea strong intermuscular ridge is continued down the anterior border of the carina, dividing it into two lateral surfaces and terminating at the upper border of the facet for articulation with the fureulum. The carina itself is Text-figure 2. Sternum of Gigantornis eaglesomei, from front. 4 natural size. c.g., coracoid groove; f., facet for furcula; sp.ext., spina externa. deep and is prolonged forwards and downwards; posteriorly it seems to have narrowed with exceptional rapidity, so that it may have been confined to the anterior portion of the body of the sternum, but, owing to the incompleteness of the specimen, its precise form cannot be determined. The anterior border is broad above and concave from side to side on either side of the median ridge above referred to; externaily it 1s separated by sharp angles from the lateral surfaces. Lower down the anterior border narrows and becomes convex from side to side. The anterior angle of the carina, which projected rather strongly forwards, is truncated by an extraordinarily large surface for union with the 522, DR. C. W. ANDREWS ON A lower end of the fureulum. This surface looks nearly directly forwards and is concave from above downwards; seen from the front (text-fig. 2) it is somewhat constricted in the middle, the constriction apparently separating distinct upper and lower arti- cular facets, between which there is a roughened area; the upper facet is the more clearly defined, and the whole structure indicates the existence of an extremely strong union between the sternum and the lower end of a very large fureula. The ventral border of the keel is gently convex from before backwards, and also from side to side, the middle line being marked by a longitudinal inter- muscular ridge. It is about 2°6 cm. wide in front, but narrows rapidly to about 1-5 em.; further back the width becomes still further reduced. Text-figure 3. Sternum of Gigantornis eaglesomei, from side. +} natural size. c.g. coracoid groove; f, facet for furcula; m.r., intermuscular ridge ; sp.ext., spina externa. The lateral surface of the keel is slightly concave both from above downwards and before backwards; the concavity is most marked beneath the hinder end of the coracoid grooves, where the bone is very thin. The intermuscular ridge between the surfaces for the attachment of the pectoralis major and pectoralis secundus is extremely strongly developed. It commences about 2 cm. behind the middle of the clavicular facet, and for a short distance NEW FOSSIL BIRD. 523 runs upwards and backwards, then turns backwards; posteriorly it seems to have curved up in the direction of the posterior end of the coracoid groove; beneath the strongly developed ridge itself and connected with it are several roughened surfaces. ‘The smooth sides of the keel are marked by numerous fine vascular impressions. The chief peculiarities of this sternum, apart from its large size, are (1) the remarkable strength of its articulations with the coracoids and furcula, indicating the possession of an extremely powerful support for the wings; (2) the presence of a deep fossa on the visceral surface; (3) the very strongly marked inter- muscular ridges. These characters seem to show that this bird was a powerful flier, and perhaps also a good swimmer and diver. It is undoubtedly generically distinct from any known species, and I have proposed for it the generic name Gigantornis, the specific name being G. eaglesomet, in honour of the discoverer [Abstract P. Z.S. 1916, p. 30 (May 30th)]. Text-figure 4. 1o|H Sternum of Diomedea exrulans, from side. natural size. Lettering as in text-fig. 3. The stippled area indicates the portion preserved in the fossil. This sternum has been compared with those of many recent birds, and it seems to resemble in some respects those of certain of the Tubinares and Steganopodes. The anterior aspect is much like that of the sternum of Diomedea (text-fig. 4), the form of the spina externa especially being almost the same; the disposition of the intermuscular ridges on the carina is also very similar. On the other hand, in Diomedea the coracoid grooves are more oblique, and their anterior ends are separated by a shorter interval; moreover, there is no deep fossa on the dorsal surface, 524 ON A NEW FOSSIL BIRD. and, although the anterior angle of the keel widens out and was in contact with the furcula, ‘there was no definite articulation between the two. In other members of the group, however, some of these characters are present. Thus, in Procellaria the dorsal fossa is present, and in the Diving Petrels (Pelecanoides) the furcula has a definite articulation with the anterior end of the sternum, and it seems possible that this articulation may in some way be connected with the diving-habit, since it is well developed in Sula and Phalacrocorax, both notable divers; on the other hand, /regata, in which the furcula is actually fused with the sternum, seems never to dive. Comparison of the fossil with the sterna of Sula and Phalacrocorax in other respects, shows that in the depth and shortness of the keel and in the form and position of the coracoid grooves they are somewhat similar. On the other hand, the keel projects much more forwards, the spina externa is thin and compressed, there is no dorsal fossa, and the position of the intermuscular ridges on the keel is different. Comparison with the sterna of other groups of birds has led to no satisfactory results. In the case of some of the Storks (e.g. drgala) the furcula has an extensive union with the anterior angle of the keel, but in other respects the form of the sternum differs from the fossil. The sterna of the Penguins and Auks also differ widely, the keel being very long and there being no union with the furcula. On the whole, we may conclude that Gigantornis was most nearly related to the Tubinares and Steganopodes, perhaps approaching the former more nearly, and it, may, indeed, be the representative of an extinct group more or less intermediate between these two. Further collections from the same locality are greatly to be desired, since nearly all the few specimens hitherto obtained represent forms new to science and of the highest interest. Some dimensions (in millimetres) of the fossil are :— Length of the portion of body preserved ...... 1386 treatest depth from anterior upper border of body to antero-inferior angle of keel ......... 140 Distance from anterior angle of coracoid groove to antero-inferior angle of keel ...... Be Aa sees WA? Length of coracoid groove.................. (app.) 77 Distance between anterior ends of coracoid STOO VES IRE) SRSA NRE US. Set caer dren ae Beene dite) Depth of surface for furcula............... (app.) 45 Greatest width of surface for furcula............ 26 Thickness of lower border of keel at level of hinder end of coracoid grooves ..........-.-.- 12 Text-fig. 4 represents the sternum of a large Wandering Albatross (Diomedea exulans), which in the flesh measured 10 ft. 8 in. from tip to tip of the wings; the fossil sternum, so far as measurements are possible, seems to have been about twice as large. ON A NEW FOSSIL MAMMAL. 525 22. On a Mammalian Mandible (Cimolestes cutleri) from an Upper Cretaceous Formation in Alberta, Canada. By ArtHuR Smita Woopwarp, LL.D., F.R.S., V.P.Z.S. [Received and Read May 23, 1916.] (Text-figure 1.) INDEX. SYSTEMATIC : Page COMONCSIES COBUCIPS ..vhincoom one nbs ccbood soddedeoeasoaneencses GS SR UC DURE eats seamen are a cc ed eR Mees oe CEO) Small mammals with a dentition closely similar to that of the existing opossums have long been known by fragments from the Upper Cretaceous freshwater deposits of North America. Complete jaws, however, are still needed to correlate the isolated teeth which form the majority of the fossils hitherto discovered. An imperfect right mandibular ramus lately obtained for the British Museum by Mr. Wiliam EK. Cutler is thus of special interest; and its value is increased by the fact that it was discovered in Alberta, Canada, in a somewhat older deposit than the Laramie Formation of Wyoming, U.S.A., in which the previous specimens were found. The new mandibular ramus lacks most of the hinder ascending portion and the extremity of the mandibular symphysis, but is otherwise well preserved, with two of the molars, one premolar, the broken roots of the other molars and premolars, and the socket for the large canine tooth. It is shown of twice the natural size, from the outer, upper, and inner aspects in the accompanying text-figure (p. 526). The mandibular symphysis is much elongated, the facette (s.) extending as far backwards as the anterior root of the fourth premolar. The large mental foramen (m.) on the outer face of the ramus is also situated beneath and just in front of the anterior root of the same premolar. The four molars and three premolars behind the canine are arranged in close series, and the teeth preserved are considerably worn, showing that the jaw belongs to a fully adult individual. The smooth enamelled crown of these teeth slightly overhangs the root, but there is no cingulum on the outer or inner face. A cingulum is only observable on the anterior and posterior faces of the two molars, where it slopes downwards and outwards. The fourth molar (m. 4). which must have been at least as large as the * [The complete account of the new species described in this communication appears here, but since the name and a preliminary diagnosis were published in the ‘ Abstract,’ No. 158, 1916, the species is distinguished by the name being under- lined.—Ep170R. | 526 DR. A. SMITH WOODWARD ON A third, is represented only by its double-rooted base. The third and second molars closely resemble those of the opossums, each consisting of a much-raised tricuspid anterior portion (trigonid) Text-figure 1. Os teh me. Gal pm, wR. wal. m m.3 m.2. ml Hi (PIRES (BLED ty n L 04 ; Cc. Cimolestes cutleri; imperfect right mandibular ramus, outer (A), upper (B), and inner (C) aspects, twice nat. size.—Upper Cretaceous (Belly River Series) : Sand Creek, Red Deer River, Alberta, Canada. m., mental foramen; s., symphysial facette; m. 1-4, molars; pm. 1, 3, 4, premolars ; ¢., socket for canine. with a less raised but extended posterior heel (talonid). The third molar (m. 3) is implanted by two very stout roots, of which the posterior is the larger. The relatively large outer cusp NEW FOSSIL MAMMAL. 527 (protoconid) of its trigonid is much more worn than the two inner cusps, of which the anterior (paraconid) is the larger and well separated from the posterior (metaconid) by a deep cleft. Its posterior heel (talonid) is bordered by a much raised rim, which is sharply separated by a groove from the trigonid, and bears one large outer cusp (hypoconid), a smaller inner cusp (entoconid), and a still smaller posterior cusp (hypoconulid), all considerably worn. In the second molar (m. 2) the three cusps of the trigonid are about equally worn, and the raised rim of the talonid closely resembles that of the third molar already described, but appears to be more worn. The first molar, represented only by fragments of the roots, is comparatively small. ‘fhe fourth premolar (pm. 4) is very large and inserted by two divergent roots, of which the posterior is the stouter, and both are marked by slight vertical flutings. Its crown consists of a tumid antero- posteriorly elongated cone, with a small, well separated pillar-like cusp behind. The apices of the cone and cusp are truncated by wear, and the large worn surface of the crown is extended by a second small surface of wear antero-internally. The enamel of its outer face exhibits faint traces of vertical wrinkling. The small third premolar is represented only by its two roots (pm. 3), and the diminutive foremost premolar, generally regarded in opossums as the first of the normal series, is shown by its simple root (pm. 1) to have been displaced inwards. The socket for the procumbent canine (c.) 1s relatively large; and the shape of the broken end of the symphysis suggests that the incisors were very small. The following are some of the principal measurements, in millimetres :— Total length of dental series behind canine ... 30) M. 4, maximum length (about) .................. 6 M. 3, % Weare] ONS Bie Fe a eee ET 5D ss [OT REENG U5] OT ests he cee ern ee a te 3°90 M. 24 a Nera entlinseeetae seracen cee Wey aia 4:5 53 [OHEENG LE Tete ae ar mete es eeee ee ana 35 WWEs: Th, a Iemma (C19OWI5)) Cococncas-deodsees t Pm. 4, a Lem ners bias chee ie eentcs ais) _ OVOP YC RA Oats caer ema ete ot ney 3°5 TPAO 3 - lemethn(Gilbout)ieeeeace seen A-5 The dentition thus described is closely similar to that of the existing Didelphys, but differs in the shape of the large hinder premolar, and doubtless represents a distinct genus. Molar teeth of the same pattern from the Cretaceous Laramie Formation of Wyoming, U.S.A., were named Cimolestes by Marsh*, who ? assigned them to an imperfect Jaw in which the sockets indicated * O. C. Marsh, “Discovery of Cretaceous Mammalia,” Amer. Journ. Sci. [3] vol. xxxvill. (1889) p. 89. 528 ON A NEW FOSSIL MAMMAL. a close series of seven teeth behind the canine without any diastema *., The new specimen may therefore be provisionally referred to Cimolestes, and as it differs from the type-species (C. incisus) by its larger size, and both from this and a second Laramie form (C. curtus) by the relatively less elevation of the trigon in the molars, it doubtless represents a new species, which may be appropriately named C. cutleri after its discoverer [Abstract P. Z.S. 1916, p. 30 (May 30)]|. The large fourth pre- molar, if it had been found separately, would have been described as Stagodon in the nomenclature of Marsh; but it seems to have characterised more than one genus of Cretaceous Marsupials 7. * ©. C. Marsh, “ Discovery of Cretaceous Mammalia.—Part III.,” doe. cit. vol. xliii. (1892) p. 258, pl. ix. figs. 5, 6. + Compare Thleodon padanicus, KE. D. Cope, Amer. Naturalist, vol. xxvi. (1892) pp. 758-762, pl. xxi. ON RUSSIAN COLEOPTERA. 529 23. A List of the Carabidee (Coleoptera) collected in Cho- persk District, Province of the Don Cossacks, South Russia. By V. Lursunikx, Kiev, Russia*. + [Received April 25, 1916: Read May 23, 1916. ] _The present paper contains a list of the Carabide collected by Mr. A. I. Hlijinski and his brother, Mr. P. I. Tlijinski, who was killed on the battlefield, in the Chopersk district of the province of the Don Cossacks. The species catalogued were collected in the neighbourhood of the stations Filonovskajaand Urjupinskaja?. 1. CrcinpeLA Germanica L.—F. 7. viii 1911; 19. vi. 1912 ; Wo AOL Tis NOE. Very common. Except f. typ., also ab. fusca D.-Torre, ab. protos D.-Torre, ab. deuteros D.-Yorre and ab. obscura F. 2. CICINDELA MARITIMA SAHLBERGI Fisch.-W.—F. 17. vii. 1912. Sandy places, not common. 3. CaraBus (s. str.) GRANULATUS L.—U. 14. vi. 1914. One example. 4, Catosoma (s. str.) sycopHanta L.—F. 28. v. 1909. 5, Catosoma (CHARMOSTA) DENTICOLLE Gebl.—F. 4. vil. 1912. 6. Epactius Limpatus F.—F. One specimen. 7. CuivinA CoLLARIS Herbst.—F. 20-25. vii. 1913. 8. Bemerpion (NorapHus) sEMIpUNCTATUM Donovan.—F. 12. vii. 1910. 9. Bremprpion (PERYPHUS) ANDREH F.—F, 25. vu. 1911. 10. Bemprpion (PerypPuus) ustutarum L.—F. 28, v.-12. vi. 1913. 11. Bemprpi0n (s. str.) 1LLicERI Neto.—F. 23-26. vi. 1912. 12. Bemprpron (PHILocHTHUs) BIGuTrATUM F.—F. 15. vii. 1910 ¢. 13. CHLEZNIUS (CHLAENITES) SPOLIATUS LONGIPENNIS Motsch.— ¥. 12. vii. 1910. 14. CHL2&NIUS (CHLHNIELLUS) NITIDULUS Schr.—F, 24. v. 1910. 15. DoicHus HALENSIS Schall,—28. vi.—12. vii. 1913. * Communicated by the SECRETARY. + Abbreviated as: F.=Filonovskaja ; U.=Urjupinskaja. £ Mr. Ph. Zaitzev has recorded Bembidion argenteolum Ahy. v. chalybeum Strm, from Urjupinskaja (Revue Russe d’Entomo). ix. 1909, no. 4, p. 491). Proc. Zoot. Soc.—1916, No. XX XVIT. 37 ISU) Or 36. MR. V. LUTSHNIK ON . Agonum (s. str.) impressum Panz.—F. 12. vii. 1910. . Aconum (s. str.) seExpunctatum L.—F. vii. 1911. . Agonum (s. str.) Graciuipes Duft.—F. 15. vii.1910; U. 20. vi. 19:12. le . Agonum (IprocHRoMA) DoRSALE Bruenn.—F. 23. vi.—d. vii. 1912. Common. . PuatysMA (SoGinges) PuNcTULATUM Schall.—F, 24, vii. 1911 ; (Wi Gs vaeeoies . Puatysma (Macropa@citus) sErtcEUM Fisch.-W.—F. 6. vii. 1912. . Puatysma (s. str.) NigruM Schall.—F. 3. vii. 1911. . PuatysmA (MeLantus) ANTHRACINUM II].—F, 23-26. vi. 1912. . AMARA (TRI@NA) PLEBEJA Gyll.—F,. 2. vii. 1911. . AMARA (s. str.) sIMILATA Gyll.—F. 2.vi.1911; U. 12. vi. 1913. . AMARA (s. str.) ZNEA Deg.—F. 23-26. vi. 1912. . Amara (Cetra) incenua Duft.—F. 18. vii. 1910, 28. vi—12. vil. 1913. . AMARA (BRADyTUS) APRICARIA Payk.—F. 12. vu. 1910, 30. vi. 1911, 23. vi.—4. vii. 1912, 28. vi.-12. vi1.19138; U. 16. vi. 1913. Very common. . Amara (Brapytus) rutvA Deg.—F. 3. vii. 1912. . AMARA (BraApytvs) consuLARis Duft.—F. 4. vii. 1912. . Harpatus (OPHONUS) SABULICOLA Panz.—U. 20. vi. 1912. . Harpauus (OpHonus) Azureus F.—F. vi. 1912. . Harpatus (PsEuDoPHONUS) PUBESCENS Muell.—F. 23-26. vi. 1912, 23. vi.—2. vat. 1913; U. 20. vi. 1912. . Harpatus (Parpiteus) catceatus Duft.—F. 12-15. vii. 1910, 30) vie—22e val. 191 26 vO 2S 20f vei valores. Very common. . Harpawus (s. str.) 2nEus F.—F, 30. vii. 1910, 5-26. vir. 1912, XY mea wus IOI S Wl AOS sms ION, Uwe IOS Common. Harpauus (s. str.) psirraceus Geoff.—F. vi. 1912. One example. Bile 38. 39. 40. 4). RUSSIAN COLEOPTERA. 531 Harpauus (s. str.) smaracpinus Duft.—F, 7-31. vii. 1910, 30. vi. 1911, 2-31. vii. 1912, 20. vi. 1913; U. 14-17. v. 1913. Harpatus (Acarpysrus) RUFUS Bruegg.—F, 2. vii. 1912. Harpatus (Avpiystus) tatus L.—F, 23-26. vi. 1912. Harpatus (HArpaLopius) FROELICHI Strm.—F. 12-18. vii. 1910. , Two specimens. Harpatus (HArpaLosius) wirtipEs Panz.—F. 30. vi. 1911, 4-8. vii. 1912, 28. vi-12. vii. 1913; U. 17. v. 1913. Common. . Harpatus (Paruernus) servus Duft.—F. 4. vii. 1912. . Harpatus (PHEUGINUS) SERRIPES Quens.—F. 27.vi. 1911. . Harpanus (Acrepuiius) PICIPENNIS Duft.—F. 20. vi. 1913. . Harpanus (Microperes) Bracuypus Stev. — F. 20-25. vi. 1913. . DracHRoMUS GERMANUS L.—F. 15. vi. 1912. One specimen. . ANISODACTYLUS (HEXATRICHUS) POSCILOIDES PSEUDOENEUS De}. INS AUG vale Jae . CorsyvrA FuSsULA Fisch.-W.—F. 20-25. vi. 1913. . Clyminpis proTa Pall.—F. 10. vii. 1912. . BRACHINUS tNcERTUS Brull.—F. 20. vi. 1913. One specimen. |. Bracuinus psopHiA Dej}.— F. vi.—vii. 1913. ayes ON A NEW PLATYSMA FROM CHINA. 533 24. A new Species of the Genus Platysma (Bon.) Tschit- scherin, from China. By V. Lursunix, Kiev, Russia*. [Received April 25, 1916: Read May 23, 1916. ] . INDEX. SYSTEMATIC: Page Platysma mandzhuricum, sp. i ......00 cece 833 SCRO/DHHUOS, SUFI Wh, oann04 949 savacesns nooon8 s9n8e0b0e 533 PLATYSMA MANDZHURICUM, sp. n. Black, shining; legs and mouth-parts pitch-black. Head large, smooth; front with a longitudinal impression on each side; eyes convex. Prothorax subquadrate, narrowed behind, sides hardly rounded, not sinuate before base; the basal angles rounded off; anterior margin slightly emarginate; base subtruncate ; the median line impressed, ending behind in a punctiform impression ; a single deep and very wide, lightly punctate, impression on each side near the basal angles. Elytra a little wider than prothorax, convex, shghtly rounded on sides, truncate at base with the shoulders rounded ; apical curve subsinuate on each side; stiri strongly impressed, finely punctate; interstices subconvex, third with three punctures. Under surface impunctate ; apical segment ( ¢ ) deeply foveo- late towards middle and with one setigerous puncture on each side of the anus. Metasternal episterna slightly elongate. Length 11:5 mm. Hab. China: Manchuria (Chandaochedzy, 5. vi. 1914, 4. Alewandrov). One male specimen in my collection. I regard this species as belonging to the subgenus SrERoPINts, subgen. nov., which, from its position, seems to be between the subgenera Steropus Steph. and Hosteropus Tschitsch. The form of the prothorax separates it from Hosteropus 'schitsch. and approximates to Steropus Steph. From the last subgenus, Steropinus Lutshn. differs by its elongate episterna and foveolate anal segment of the abdomen, * Communicated by the SECRETARY. wine oo date ie i ne Lai ak Rae ei ty Rav. bes MY) tiaras i eats ih ON AUSTRALIAN SPECIES OF PLATYSMA. 535 25. Notes on Species of the Genus Platysma (Coleoptera) from Australia. By V. LursHnix, Kiev, Russia * [Received April 25, 1916: Read May 28, 1916.] INDEX. Page SOUR UCR eee a eek eas een Oper ee hc Me iO SWS TE MAT Caine ee nee an eee. eee ee cnet soumuaaciaec oan OOO In one of my papers I have had occasion to indicate that the punctation of the mesosternal and metasternal episterna in species of the subgenus Sarticus Motsch. (1864) is not important for their definition *. I have now a sufliciently large number of specimens of this subgenus from Victoria to confirm the correctness of my remarks. I have one example of Platysma (Sarticus) haditans Sloane (1889), from the Ballarat District, which has fully impunctate episterna, but in other features entirely conforms to the original description of this species {. I have also one specimen of Platysma (Sarticus) obesulum Chaud. (1865) from the same locality, which has one punctate and one impunctate metasternal episterna. As is known, Platysma (Sarticus) rockhamptoniense Casteln. (1865) is distin- guished from Pl.’ (S.) obesulum Chaud. only by its punctate episterna §. This distinction is not constant, and for that reason I consider Pl. (S.) rockhamptoniense Casteln. to be a synonym of the last species ||. 108 In his “ Review of the genus Sarticus,’ Mr. Th. G. Sloane J erroneously writes reparding the subgenus Sarticus Motsch., ‘‘ the basal segment of the abdomen is always punctate.” This is not quite correct, because one of the species of this group, namely, Platysma (Sar ticus) saphyreomarginatum Casteln. (1865), has the abdomen completely impunctate. In the original deserip- tion of Feronia cyaneocincta Chaud. (1865) avae saphyreo- marginatum), Chaudoir writes of this species “corpus totum leve ” **, My examples of Pl. saphyreomarginatum Casteln., from Victoria and Queensland, have the abdomen completely impunctate. % Communicated by the SECRETARY. + Lutshnik, V., “Sur quelques Sleieraaiae de la faune Australienne,” Revue Russe d’Entomol. xiv. 1914, no. 4, p. 421. { Sloane, Th., “‘ Studies in Australian Entomology, no. I.,” Proc. Linn. Soc. New South Wales, 1889, p. 508. § Sloane, Th., op. cit. p. 508. || Chaudoir, “Supplément a Vessai sur les Féronies de Australie,’ Ann. Mus. Civ. Stor. Natur. di Genova, vi. 1874, p. 595. | Sloane, Th., op. cit. p. 502. ** Chaudoir, “Essai sur les Féronies de Australie et de la Nouvelle-Zélande,”’ Bull. Soc. Impér. Natur. de Moscou, 1865, no. 3, p. 98. : 536 ON AUSTRALIAN SPECIES OF PLATYSMA. Tir The subgenus Coronocanthus Macl. (1877) is perfectly valid, but very near to Sarticus Motsch., as I have, already indicated *. For Platysma (Coronocanthus) suleatum Macl, (1877)= Pl. quad- risulcatum Chaud. (1878), it is necessary to conserve Chaudoir’s name, because the name “ suleatwm” has been already occupied in the genus Platysma (Bon.) Tschitsch *. T have two examples (¢ and 9) of this remarkable species from the Northern Territory. * Lutshnik, V., op. cit. + Gay, Hist. Chil. (Spanish edition), iv. 1849, p. 223 (Feranomorpha sulcata). P. Z. S. 1916, BOULENGER, Pl 1 fF. W. Bond, photo, Bale & Danielsson, Ltd. PHRYNOSOMA BREVICORNIS. MR, E. G. BOULENGER ON A NEW HORNED LIZARD. Dol 26. On a new Lizard of the Genus Phrynosoma, recently living in the Society’s Gardens. By H. G. BouLuncsr, F.Z.S., Curator of Reptiles. [Received May 12, 1916: Read May 23, 1916.] (Plate I.) Among a small collection of reptiles from Texas given to Dr. H. G. F. Spurrell by Prof. J. S. Huxley for presentation to the Society, I found a lizard of the genus Phrynosoma, which is evidently new, and for which I propose the name of Phrynosoma brevicornis. Superficially the lizard resembles P. dowglassw, the head-spines being extremely sboxt, but it differs in the nostrils being pierced within the canthi rostralis and in the pectoral and ventral scales being strongly keeled. From P. taurus, to which it is in some respects closely related, it differs in the much shorter head-spines, in the gular scales being smooth, and in the longer tail. PHRYNOSOMA BREVICORNIS, sp. n. (PI. I.) Head broader than long, with the spines very small. Posterior outline of the head forming a slight concave curve. Nostvril pierced within the canthus rostralis. Tympanum naked. Head- spines obliquely turned upwards: they number three temporal, two very small occipital, and a minute postorbital. The temporal head-spines largest, slightly larger than the largest spinose scales on the body. Lower labials terminating in a series of pointed scales. Gular scales equal, smooth. Gular fold strong. A dermal thickening bearing a few erect spines on each side between the gular fold and the tympanum. Back and limbs with scattered, erect, large, keeled, spinose scales. A regular lateral series of spines. Pectoral and ventral scales strongly keeled. Eleven femoral pores on each side, the series not joining medially. Tail about two and a quarter times as long as head. Yellowish brown above, pale yellow on the sides; lower surfaces yellowish white, uniform. — Total length 107 mm. EXPLANATION OF THE PLATE. Phrynosoma brevicornis. Fig. 1. Front view. 2. Side view. 3. Upper view. MR. ©. TATE REGAN ON A RARE FISH. 539 EXHIBITIONS AND NOTICES. May 23rd, 1916. Dr. Henry Woopwarp, F.R.S., Vice-President, in the Chan. Mr. K. G. Boutrencer, F.Z.S., Curator of Reptiles, exhibited living specimens of the African Lungfish (Protopterus annectens), presented to the Society by Capt. C. W. Woodward. The Rev. H. N. Hurcstnson, M.A., F.Z.S., exhibited the plaster cast of a model, four feet long, ring he had constructed, of the Dinosaur, Diplodocus carnegier. The object in ‘making the model was to express in a solid form his views on the reconstruction and articulation of the skeleton of Diplodocus, with special reference to the plaster-cast of a recon- structed skeleton now in the British Museum (Nat. Hist.), and presented by Mr. Andrew Carnegie in 1905. The late Dr. J. B. Hatcher, Dr. W. J. Holland, and others who have published papers on Diplodocus appear to be so anxious to make this extinct reptile appear very tall and impressive, that they have been so bold as to place the limbs in an upright position, as if the creature were an elephant. On the other hand, many naturalists, recognising the Sauropoda to be related to the Crocodilia, are persuaded that the limbs should be placed at an angle to the body somewhat as in the Lacertilia, a view which the speaker has expressed on the above model. He has tried to show that the articulations of the femur and the humerus are mechanically impossible. The broad spatulate end of the latter he thinks should not be put at right angles to the plane of the scapula and glenoid cavity, but must be turned round 90 degrees so as to come properly into line with the large surfaces of the scapula and coracoid. A rare Mish. Mr. C. Tate Reean, M.A., F.Z.S., exhibited a specimen of a rare fish, Centrolophus Maceo Ginth. This species was Aeceribeds from a fish about 500 mm. long, which was washed ashore near Polperro in February 1859 (Giinth. Cat. Fish. i1. p- 402, 1860). No other specimen was recorded until one of nearly the same size as the type was taken near ee in _ December 1904 (Cligny, Ann. Stat. Aquic. Boulogne, n.s. 1. 1905, p. 75). A third example, of the same size as the anise was taken from’ the water in a dying condition, after a storm, at Capbreton, in March 1908 (Pellegrin, Bull. Soc. Zool. xxxvii. 1912, p. 20). The fish exhibited was the fourth known example of this species. It was landed in South Wales from the trawler 540 DR. R. W. SHUFELDT ON ALBINISM. ‘Caswell,’ and was sent by Mr. H. E. Rees to Mr. James V. Pryor at Cambridge; not recognizing the species, Mr. Pryor showed it to Professor Stanley Gardiner, and on his advice sent it to Mr. Regan. Mr. Rees had kindly given the following information :—‘ The fish was caught by the steam trawler ‘Caswell’ on Sunday, May 7th, at 3 p.m. The vessel was fishing 95 miles §.S.E. of the Bull Rock, Ireland, in 300 fathoms of water. The fish was caught in the trawl on the sea-bottom and was alive when it was brought in on deck.” The fish is nearly 400 mm. long; it has 53 dorsal and 31 anal rays. The principal differences between C. britannicus and the more abundant C. pompilus appear to be as follows :— O. britannicus.—D. 46-53. A. 28-33. About 240 scales in a longitudinal series above lateral line, which has a curve in the anterior + of its length. Length of head 53 to 6 in length of fish. C. pompilus.— D. 37-41. A. 23-25. 185 to 205 scales in a longitudinal series above lateral line, which has a long curve, becoming straight above origin of anal fin. Length of head 4 to 5 in length of fish. Mr. Regan also exhibited a Silver Ling (Jolva elongata), nearly 600 mm. long, taken from the stomach,of a very large Sun-fish (Mola mola) that had been caught in a trawl, landed at Milford, and sent to Mr. W. Howlett of Billingsgate Market, who pre- sented it to the Natural History Museum. The Sun-fish appears generally to swim near the surface and to eat small invertebrates, larval fishes, etc. It is interesting to note that it may descend to considerable depths (Jf. elongata is usually found at 100 to 300 fathoms) and that 1t may capture fairly large and active fish. Albinism in American dnimals. Dr. R. W. Suurevpr, C.M.Z.S., communicated the following notes on cases of albinism seen in American animals :— “During the past half century I have noted and examined a great many instances of albinism in various parts of the United States, and as this condition is of interest from several points of view, I am presenting here a few notes I have made upon the subject. It is generally supposed that we may meet with albinos in any type of animal now to be found in existing faune in any part of the world; but, strange to relate, there are certain groups of animals, representatives of which seem to be exempt — from it. Moreover, while we know very accurately what con- stitutes albinism, whether partial or complete, we do not know, in so far as I am aware, the precise cause of it, when manifested in any particular individual. There are those who are disposed to consider it simply as a ‘freak of nature,’ an opinion that I ON RESULTS IN THE ‘ BIOLOGIA CENTRALI-AMERICANA.’ HAS cannot see my way to accept; for such an explanation stands for nothing more than a cloak to our ignorance of the basic cause of the condition. Why we should find, for example, in a brood of crows, three normally plumaged and the remaining one an albino, has not, in my opinion, ever been satisfactorily Ps plained: “Among American fishes I have seen living examples of albino brook trout, flounders, eels, and others; while in the case of the common or golden carp albinos are not infrequently met with in nature. Salamanders and frogs occasionally exhibit it among the Batrachians, while examples of it have been observed in the case of certain snakes, ‘horned toads,’ and lizards. But in so far as my personal experience goes, I have never imet with an aibino turtle or a tortoise, although I have seen very pallid examples of our common box-tortoise (Terepene carolina). “Of all the Vertebrata birds seem to constitute the group most frequently exemplifying this condition, and I have personally examined or collected cases of complete or partial albinism, repre- senting nearly every family of them. For the most part, this has been seen in the case of loons, gulls, ducks (teal and mallard), certain waders, sora. rail, snipe, woodcock, quail, grouse, turkey, various owls and diurnal raptores, whippoorwill, and in not a few passerine birds as crows, ravens, robins, bluebirds, finches, and others. “Whilst writing this I have a fine specimen of a ‘ piebald’ robin in my collection. which I collected in Connecticut in 1868. * American mammals frequently afford examples of either partial or complete albinism, and a few years ago, I had, for a short time, in my possession an unusually fine living example of -our common woodchuck (Arctomys monax). On the day follow- ing its arrival I succeeded in obtaining some fine photographic negatives of the animal, and a photograph from the best one of these is exhibited. “Other United States mammalian albinos collected or seen by me have been examples of prairie marmots (Cynomis), Virginia deer, muskrat, beaver, bats. porcupine, rabbits and hares, squirrels, and some few other forms.” June 6th, 1916. Prof. KE. W. MacBripsg, D.Sc., F.R.S., Vice-President, in the Chair. At this meeting an informal discussion took place on the results published in the ‘ Biologia-Centrali-Americana,’ with special reference to the zoo-geographical relations between America and Africa, of which the following is a brief résumé :— Dr. F. DuCane Gopmay, F.R.S., F.Z.S.—tn compliance with a request from the Publication Committee of this Society, 1 have 542, DISCUSSION ON RESULTS RECORDED made a few notes which may serve as a prelude to the discussion on the results recorded in the work published by Osbert Salvin and myself—the Biologia Centrali-Americana. Salvin and I were at Cambr idge together, and after leaving the University in 1857 Salvin visited Guatemala to report upon the nuts of a Palm which it was thought might be used in the manufacture of candles. The nuts, however, proved useless for practical purposes, so he devoted some months travelling about the country collecting Birds, Insects, and Plants. Salvin sub- sequently made three further expeditions to Guatemala with the sole object of continuing his Natural History pursuits—in 1859, and in 1861, on which occasion | accompanied him, returning after about a year’s absence, and again in 1865, when he nil visited Panama. We trained and employed many of the natives to assist us, and some of them continued to send us specimens for over 30 years. Salvin and I were immensely struck and delighted with the richness and variety of the fauna and flora found in a tropical country, but it was the revolution in thought produced by the publication of the “Origin of Species’ by C. Darwin, and the promulgation of the theory of evolution, which gave such an intense interest to the subject. I well remember the violent opposition with which this new doctrine was received, and it is difficult for those of the present generation to realize the bitter- ness with which this new idea was received by all classes. Salvin and I had both read the ‘Origin’ before our visit to Guatemala, but it was not till after our return that in working out our collections the truth of the new doctrine was fully realized. From that time we took a deeper interest in all our work, and now many problems that had puzzled us were solved. Although we had written several papers in the P. Z.S. and Ent. Soc. Trans., we were still without any idea of publishing the result of our travels in a more collected form. In 1876 it was suggested that the ‘ Biologia’ should be under- taken, and three years after the first part appeared. It was then estimated that the whole of the Zoology might be completed in 60 parts, but owing to the ever-increasing material this subject alone occupied 215 parts. After we had been at work for some time we found ourselves very short of Mexican and North-American material wherewith to compare our Central American specimens, and to remedy this, in 1888 I made an expedition to Mexico and spent some months collecting in various parts of the country. For the Birds of North America I was fortunate enough to be able to purchase the Henshaw collection, which was very rich in species from the United States, and which Mr. Ridgway kindly examined for me, critically revising the names and localities. Up to this time collections of Nowthe American birds in this country were Hone meagre. A few words on the physical aspect of the country are perhaps IN THE ‘BIOLOGIA CENTRALI-AMERIOCANA.’ 543 necessary here, but as this subject has been dealt with at length in the Introduction, I will only refer to its general characteristics. Northern Mexico consists of a high tableland, the extension of the Arizona plateau; it is very arid and consequently barren, growing cacti and other such plants. At the spot where the railway crosses the Rio Grande at El Paso, on the borders of Mexico, the plateau descends to only 3700 feet, but soon rises again and has an average altitude of about 8000 feet, till at the end of some 900 miles the City of Mexico is reached. This plateau is bounded on each side by ranges of mountains descend- ing abruptly towards either coast and clothed with forest, which at its summit consists largely of pines and ilex. Both on the Atlantic and Pacific coasts there is a narrow belt of tropical country. About the City of Mexico the plateau is broken by a series of volcanoes, the highest of which reaches 18,000 feet. Southward to Panama the land gradually descends in altitude ; it is, however, very much varied and frequently covered with forest. alternating with savannas and interspersed with many volcanoes, one of which in Costa Rica attains a height of 11,000 feet. At the Isthmus of Panama the land subsides to 300 feet. The country is divided by the natives, according to altitude, into zones under the names of Tierra caliente, Tierra templada, and Tierra fria, and these zones have an immense influence on the fauna and flora, and are a largely determining factor in the number and diversity of species. The climatic conditions must also be taken into consideration, the rainfall on the Atlantic being far in excess of that on the Pacific, and the vegetation far more luxuriant. In Eocene or early Miocene times there was a broad channel separating North and South America, where the Isthmus of Panama now exists, and it seems probable that a series of elevations and subsidences took place, temporarily forming islands before the land became permanently continuous as it now is, thus accounting for the many allied and representative species found in Chiriqui and Costa Rica. When the channel was in existence it must have proved an insuperable barrier to the migration of land-animals, but when the two continents became united undoubtedly a considerable interchange of animal- and plant-life took place, and there was a mingling of northern and southern forms. This, no doubt, accounts for the extraordinary richness in species of Central America. Mr. Pocock, in his remarks on the origin of the Mammalia, says that during Miocene times, when the Panama land-bridge was upheaved, the migration was divided into two categories, one containing the Insectivora, Carnivora, Artiodactyla, Periisodac- tyla, ete., which had been evolved in the northern hemisphere and inferentially passed from North into South America, while the other comprised the Primates, the Edentates, the Marsupials, 544 DISCUSSION ON RESULTS RECORDED and part of the Rodents, which migrated from South into Central or North America. Birds, which, from their power of flight and habit of migration common to a large number of them, are much more easily distributed than most vertebrates, do not throw the same light on geographical distribution as is the case with more sedentary animals. This must, however, be applied in a general sense, as many of the species are extremely local. Nearly half the 1413 species are endemic; but a very large number are migrants from the United States, spending the winter in Central America and returning again in spring. There are, however, two remarkable instances which I may mention. The family of the Tinamide, which are essentially ground-birds, rarely fly, and are frequenters of the forest. Members of this family range from Chili to Mexico. They are of a very ancient type, probably allied to the Ratite, and must have passed by land to Central America. The Trogons, on the contrary, have a very wide distribution ; they are strictly tropical, and are also frequenters of the forest, but, unlike the Tinamide, have a very extended range, being also found in Oriental regions, and a single speeies of a peculiar genus occurs in Africa. Remains of a fossil Trogon have been found in the Miocene of France. It seems probable that South America may have had a land communication with Africa at some remote period, and America may have received some of its characteristic forms from that continent. There is also some reason to suppose that there may have been a land communication with Australia, though this seems more remote. But this is a subject which I hope may be discussed later. As regards the Insects, which form so large a portion of the work, little can be said as to their distribution at present, and it will be well to wait till more is known of those of other countries ; at present the geological evidence is but scanty. Salvin and I had intended, on the conclusion of the ‘ Biologia,’ to have discussed the geographical distribution of species, but in consequence of his death and my own ill-health this project was abandoned, and Mr. R. I. Pocock and Mr. Regan kindly came to the rescue and I hope will be present here to-night. The total number of species recorded in the ‘ Biologia’ is 38,637; of these 19,067, or very nearly half, were previously unknown. They belong to 1373 genera, and are illustrated by 1173 plates containing 18,051 species, mostly coloured. Although the ‘ Biologia’ contains the record of such a large number of species, it is but a fragment of what may yet be obtained. The whole work must be looked upon as only a con- tribution to our knowledge of the subject, and I hope it may be an incentive to others to carry it further. Dr. H. Gapow, F.R.8., F.Z.S., illustrated his necessarily very condensed remarks by slides of maps showing the present physical features of Mexico and Central America, and of hypothetical IN THE ‘ BIOLOGIA-CENTRALI AMERICANA.’ 545 restorations of the distribution of land and water during previous geological epochs. Also a faunistic table. . The Neotropical and Nearctic faunas and floras do not meet at the Isthmus of Panama, but in Mexico. The isthmus was originally very much broader. The various groups of the fauna seem to fall into three categories :— 1. Those which are of undoubted northern provenance. Some of these stop with the plateau; others descend thence into the hot lands, and most of these continue into Central—even far into South America. 2. Those which are of Southern, Neotropical provenance. Many of them have overrun Central America and extended into Mexico, where their current has, so to speak, been divided to east and west by the wedge-like plateau. These two main categories interdigitate, with many com- plications. Some have become derelicts in their new home, whilst they have died out in their older home, e. g., Tapirs. Others have hooked back, not the families, but genera and species rather, e. g. Opossums and the Tree-Poreupine Hrethizon. 3. There is’a considerable number of forms, drawn from all classes, which seem to be endemic, rather archaic, developed into what they are on the spot. They are the most inter- esting and most difficult to interpret. 3a. Some seem to be real aborigines. “3B. Others are neither from North America proper nor from South America. They must have come from elsewhere. Some of these puzzling groups seem to be a legacy from a more western extension of land, say from Lower California to the Galapagos and South America, analogous to the “ Andines” of botanists, which date back far into the Cretaceous period. Others point unmistakably to Mediterranean lands and to Africa. A ‘“land-bridge” implies also coasts with all their concomitant physical features, suitable land-conditions for ter- restrials and freshwater-fish, shallow seas for corals and shells, ete. Such “ bridges” need not have ever existed in their entirety, being rather like changing pontoon-bridges. Such restorations rest upon circumstantial evidence; much of it will, no doubt, be ruled out of court, but there is a great deal of cumulative evidence and much that is mutually supporting (both negative and direct) presented by plants, Vertebrates, and Invertebrates, terrestrial and marine, so that the Afro-American connections are becoming more than a good workable hypothesis. The chief question is now, how long and into what geological groove did they jast? Did they last long enough, say into the Oligocene, to be available for comparatively recent groups @ Proc. Zoou. Soc.—1916, No. XX XVIII. 38 546 DISCUSSION ON RESULTS RECORDED Dr. A. Smita Woopwarp, F.R.S., V.P.Z.S., remarked that nearly all the vertebrates in South America which seemed to suggest a direct land-connection with the Old World through Africa, were either late-Tertiary immigrants from North America or senile members of pre-Tertiary cosmopolitan groups. Most of the resemblances in the faunas of the two countries usually noted were in animals of which the ancestry was entirely unknown. The only resemblances already explained by paleontology were due to the survival in the two southern continents of remnants or refugees of formerly widely-spread faunas, which had become extinct in the more progressive northern hemisphere. Paleon- tologists began to distinguish between the characters of animals which were real marks of affinity and others which were the inevitable and oft-repeated concomitants of maturity and senility in arace. It must be possible to distinguish these characters in a group of animals before the latter can be used in discussing questions of geographical distribution. Mr. C. Tare Recan, M.A., F.Z.8., said :—South America has a very rich and varied freshwater fish-fauna; with the excep- tion of the Osteoglosside, a generalized and ancient group represented at the present day by a few remnants, it has not a single family in common with either North Aroedien or with Australia. On the other hand, three South-American families, Lepidosirenidee, Characidee, and Cichlide oceur also in Africa, and the South-American Catfishes of the family Pimelodide are closely related to the Bagridze of Afriea and India. If South America and Africa were one continent in Cretaceous times, and the connection between them persisted until the beginning of the Eocene, these facts would be satisfactorily explained, Alternative hypotheses are that the families common to South America and Africa were formerly marine and entered their rivers from the sea, or that they were formerly northern and migrated southwards, becoming extinct in the north. Against the former it may be urged that the Lepidosirenide are obviously adapted for life in fresh water and unfitted for life in the sea, that the Characide are Cyprinoids, a strictly freshwater group, and that if the Cichlide were formerly tropical shore-fishes, entering rivers, it is curious that they did not establish them- selves in the southern rivers of North America. The second hypothesis is unsatisfactory, for when the slowness of dispersal of freshwater fishes is taken into account the improbability 1 is great that several groups should have made these extended journeys, with the final result that closely related genera arrived in Africa and South Ameriea. Hydr ographiecal changes, such as the union of rivers formerly distinct or the capture by one river of the tributaries of another, are the means by which the dispersal of freshwater fishes is accomplished; for such fishes migration appears to be difficult, survival relatively easy. No known northern fossils can be referred to these African and South IN THE ‘ BIOLOGIA CENTRALI-AMERICANA.’ 547 American families, and there is good evidence that the main distribution of freshwater fishes changed but little during the Tertiary. The Eocene Priscacara, from the Green River Shales of Wyoming, is, in my opinion, not one of the Cichlidee ; it belongs to the North-American family Centrarchide, and 1s closely related to the modern Hupomotis. When we get to know something about Cretaceous freshwater fishes new light may be thrown on the problem. But for the present the hypothesis that South America and Africa were formerly one continent is the one that offers the most reason- able explanation of the relationship between: their freshwater fishes. Mrs R. i: Pocock, FIR:S., Fil-Ss, H:Z38:, remarked that evidence for the former existence of a tropical or southern Atlantic connection between South America and Africa was suppled by the following, amongst other, genera of Arthro- poda :— PRoroTRACHEATA.— Peripatus is confined to tropical West Africa and tropical Central and South America and the Antilles. Opisthopatus is found only in Chili and Cape Colony. DipLoropa.—The Spirostreptid genus Orthoporus, which is of wide distribution in tropical America, is very closely related to tropical African, but not to tropical Asiatic, millipedes. CuiLopopa.—Parotostigmus occurs in tropical America and Africa, but not in tropical Asia. Scolopendra (s.s.) is mainly tropical and Central American, but in the Old World it has been recorded from the Cameroons, the Canary Islands, Arabia, and Sokotra. Scorpionres.—Of the three tropical American genera of the Scorpionidee Opisthacanithus has its nearest ally im the tropical and South-African Opisthocentrus ; and Diplocentrus and Oiclus are closely related to the Arabian and Syrian Vebo, the three together constituting the well-marked subfamily Diplocentrine. ARANEH.—The Sicariide (s.s.) range in America from Chili to Costa Rica, and are only found elsewhere in the world in South Africa. Of the three genera of Caponiide Vops and Caponina are tropical American, Caponia South African. In the case of the above-mentioned Arthropods no reason can be assigned for their extermination elsewhere in the tropics, if they are the only extant representatives of genera formerly widely distributed in the Northern Hemisphere. In the case of the Mammalia the evidence rests mainly upon the present distribution of the three following orders :— SrrentA.—The Manatees (Ziichechus) are restricted to the rivers and estuaries debouching into the Atlantic on the African or eastern side and on the American or western side. These animals do not venture out to sea, and no extinct representatives of the genus appear to be known from Kuropean or. North- 548 DISCUSSION ON RESULTS RECORDED American deposits to support the theory of its former extension into northern latitudes. RopentiA.— The headquarters of the Hystricomorpha at the present time are South America, where they date back to the Upper Miocene. ‘The only North-American representative of the group is the tree-porcupine (Hrethizon), a late immigrant from South America. No extinct representatives of the group have been found in early or mid-Tertiary strata in North America. But im the Old World alleged representatives of the suborder, referred to the family Theridomyide, occur in Eocene and Oligocene deposits in Europe, and at the present time several genera of Octodontide occur in Africa, and the Hystricide range from Africa through Southern Asia to Borneo. Until evidence for the aiktones of this group in early and mid- “Tertiary or Cretaceous times in North America is forth- coming, it cannot reasonably be claimed that the South-American forms are descendants from ancestors from the North; and if the theory of raft-transportation from Africa be rejected, it must be conceded that the faunistie similarity between tropical America and Africa in this respect supports the idea of a transatlantic Jand-connection between those countries. Primates.—The past and present distribution of Monkeys is tolerably similar to that of the Hystricomorph Rodents. The Platyrhmi are restricted to South and Central America, where they date back to the Upper Miocene. No fossil monkeys have hitherto been discovered in North America. Similarly, the Catarhini are confined to tropical and temperate countries of the Old World, and have been recorded from middle and later Tertiary deposits in Europe and Asia. The available data, there- fore, point to the entry of monkeys into South America from the Old World by means of a southern transatlantic land-bridge, unless it be claimed, as it has been claimed, that the resemblances between the Platyrhini and Catarhimi are due to convergent descent from Lemuroids of the New and Old Worlds respectively, a view from which Mr. Pocock expressed dissent. Dr. C. W. Anprews, F.R.S., F.Z.S., remarked that if a land- bridge had existed between Africa and South America m Tertiary times one would expect a more extensive mingling of faunas than had actually taken place. Even in the Kocene both continents must have had a varied mammalian fauna, yet it is only claimed that the Primates, the Hystricomorph Rodents, and perhaps some Insectivora crossed from Afriga to South America, no inter- change in the opposite direction being known. Of these groups the Primates are represented by numerous small lemur-like animals in the Eocene of North America, and it is thence that the colonization of South America probably took place, although at present the group may be unknown from the older tertiaries of that continent. The Hystricomorph Rodents are represented in the Hocene and Oligocene of the Old World by numerous IN THE ‘BIOLOGIA CENTRALI-AMERICANA.’ HAO species referable to the Theromyide ; these are all small animals and seem to have been very abundant, so that, like the rats and mice of to-day, they would be especially liable to accidental trans- port. The same may have been the case with the Insectivora. What really happens when a land-bridge is established is well shown in the intermingling of the faunas of North and South America after the establishment of the Isthmus of Panama at the end of the Miocene or beginning of the Pliocene period. Lord Roruscuitp, D.Sc., F.R.S., F.Z.8., said that while in no way wishing to oppose the views of the speakers who preceded him, he thought, and had always thought, that in many cases the sup- posed relationship of the faunas of widely separated areas was more apparent than real, and that many of the instances usually quoted were cases of convergence or parallel development. This could be easily explained if we considered that the chain of evolution of all species owed its commencement to a stimulus due to the ex- ternal environment the species found itself in, causing variation to proceed in a certain direction. It is also as easily conceivable that a similar or even identical stimulus might start a chain of variation along similar or even identical lines in two totally different areas. He instanced among birds the two snipe, Galli- nago nobilis and macrodactyla, the former from South America, while the latter inhabited Madagasear. These two birds are practically identical, but had evidently had separate origins. He also instanced the genus Menas among the Arctiid moths, species being found in Africa, Indo-Malayana, and South America. While in the imago the structure was identical, in the larva the difference in habits pointed clearly to a separate origin, for while the larve of the species inhabiting the Old World were terres- trial the larve of the South-American species were entirely aquatic. On the contrary, he pointed out that the case of the gigantic land-tortoises favoured the views of the previous speakers, for while at present they were confined to two small groups of islands, the Aldabra and Mascarene group in the Indian Ocean and the Galapagos Islands off the South-American coast, in Miocene times they were found in many parts of the world and the present-day forms were merely survivals. Dr. R. Broom, D.8c., C.M.Z.8.—When I was a student 30 years ago the scientific world was so much under the spell of Russel Wallace that any one who ventured to suggest the possibility of a land-connection across what was regarded as a permanent ocean was looked upon as a dangerous heretic, and even now there are many who are apparently afraid to admit the possibility; yet, if there is one point on which we can be perfectly certain, it is that South Africa was connected by land with South America in Lower Permian times. Identical species of plants lived in the two continents, and we know enough of the floras of North America, and Europe to feel sure that the species did not pass 550 DISCUSSION ON RESULTS RECORDED from the one continent to the other by the north. We know only a very few tetrapod vertebrates, but those known from Brazil are strikingly similar to those that oceur in South Africa. BAR St ece= President. Cot. Sir Watrer R. Lawrence, Br., G.C.1.E. Sir Epmunp Giies Loner, Br., Vice-President. Pror. Ernest W. MacBripz, M.A, D.Sc., F.R.S., Vice- President. Guy A. K. Marsnatt, Ese., D.Sc. E.G. B. Mravz-Watpo, Esa. P. CHatmers Mrrcnet, Kse., MEARS Dy Scee milo Den oases Secretary. 5) ALBERT Pam, Esa. Tur Hart or Porrsmoura. Oxprietp Tuomas, Ese., F.R.S. AvsyN TRevor-Bartryr, Esq., M.A. AntHony H. Winerrexp, Ese. Artaur Smirx Woopwarp, Hsa., LL.D., F.R.S., Vice-President. 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These publications may be obtained at the Socrnry’s Orrics or through any bookseller. * Serpe paamnoeeeniit’ PZ.S1916 GE MMiEE Pie OUD Ahe, Weekes: Ya “e JF Gemmill del. Huth,London. (ASS TE IBA) | Gly UAB Ss. PALS OG, Grey VM Ts ae ela J.F.Gemmill del. Huth,London. Ban O), Clsuis Buy OG UGEy- aby ke lS) OVENS) Wisdat IS INYDIS) (CoA... ON THE DEVELOPMENT OF SOME STARFISHES. DD3 PAPERS. 27. Notes on the Development of the Starfishes Asterias glacnalis O. BF. M.; Cribrella oculata (Linck) Forbes ; Solaster endeca (Retuius) Forbes; Stichaster roseus (O. F.M.) Sars. By James F. Gummirt, M.A., M.D., IDSS@sy LAGS 3 [Received May 20, 1916: Read November 7, 1916. ] (Plates I. & II.7) INDEX. Page PIS SOROUIS, GUECAMES. “sso ooo sso soon scobaeac osecons EOF CUO ANG OCMUTTD, eociccoose denies sooanspateesctiedecc. (i ISQUGSEOP GOCE srotccmancnsesnaccertencostecesaensen, EGO SWIGLOREEP TOSCU Song shoes sss sacannococo ssqecsoentsaae SED J. AsTpriAs GLactauis. (PI. 1.) In the course of attempts to rear Asterias glacialis I have constantly noticed that in the early larve (6-8 days) a small mass of cells takes origin from the wall of the stomach dorsally on the left side. Although this mass usually disappears by breaking up into mesenchyme before the main ccelomic cavity has extended back into its neighbourhood, still not infrequently some of its cells can be seen to join the wall of the celom. It is very common for the mass in question to show traces of a central cavity after its separation from the stomach and before its disruption into mesenchyme. A similar mass, but rather smaller and less constant, occurs in the case of Asterias rubens (2, p. 233), and two such masses, right and left, are frequent in the larve of Porania (3, p. 32). In all three species considerable variation in the constancy and size of the masses is exhibited by different broods of larve as well as by different larvee in the same broods. The object of the present note is to call attention to an instance in which the mass was unusually well-marked in prac- tically all the early larvee belonging to a particular culture of Asterias glacialis. Later, in a large proportion of the larvee, the mass as it separated off from the stomach acquired a distinct lumen, and, subsequently increasing in size, fused with the ceelomic cavity of the left side, thus taking a share in the actual formation of the posterior portion of the cavity in question. Stages in the process are illustrated in Pl. I. figs. 1-5, and explained in the description attached. * T have to express indebtedness to the Trustees of the Carnegie Trust for grants towards the expenses incurred in this investigation, as well as in that on “The Cilation of Asterids and the Question of Ciliary Nutrition in certain Species” (Proc. Zool. Soe. Lond. 1915). + For explanation of the Plates see p. 564. Proc. Zoou, Soc.—1916, No. XX XIX. 39 554 DR, J. F. GEMMILL ON THE In accounts of the development of Asterias rubens (2, p. 233) and Porania (3, p. 33) I put forward the view that the mass in question is the rudiment of a posterior enteroccelic outgrowth, pointing out that the recognition of potential metiamerism in echinoderm development makes for simplicity and for the recon- ciliation of what might otherwise seem fundamental differences in the ontogeny of different forms. (See also p. 557.) The larvee above described add evidence in support of this view. In any event, they deserve to be put on record since they supply a definite example of a developmental variation occurring along lines which, if persisted in, could give rise, in course of time, to very important alterations in the ontogeny, without necessarily affecting the adult anatomy, of the species concerned. II. Crrprevia ocutata. (PI. IT. figs. 6-10.) Early in April 1915 a number of Cribrella, obtained at low- water on the shore near the Millport Marine Station, were placed in the aquarium tanks, where they spawned freely after a few days. The eggs, which were kindly put at my disposal by the Superintendent, underwent natural fertilization, sets of them being brought through metamorphosis both at the Marine Station and in the Hmbryological Laboratory at Glasgow University. Masterman in 1902 (9) furnished an excellent account of the development of this species. My observations confirm his results in most respects, but I am able to give new or supplementary data on various points *. (1) Spawning.—Not less (and probably more) than 500 eggs are produced by each full-sized female. None of the eggs was observed to enter intoand remain within a brood-pouch formed by the closure of the arms around the mouth. In my specimens the genital openings look outwards in the interradit. During March and April Cribrella eggs or larve ave not infrequent in the plankton of the Firth of Clyde. Sars (10, p. 170) and Masterman (9, p. 374) have described the brooding habits of Cribrella, the latter pointing out that these are by no means intense, but adding that it is not known whether in natural conditions any of the larvee leave the brood- chamber of the mother. He gives the number of eggs laid by each female as 30 to 50, and Sars as 10 to 30. Masterman also states (9, p. 874) that the genital openings are situated on the oral surface of the starfish at the edge of the oral disc, this being an adaptation for brooding. Cribrella aypears to be a species in which the brooding habit is either being acquired or being lost. The second alternative seems rather more probable, and from the evidence given above it would * Dy. Masterman makes the very reasonable suggestion to me that the features noted under 1 and 2 below are probably explicable as adaptations to development within a relatively enclosed sea-area, such as is formed by the Firth of Clyde. DEVELOPMENT OF SOME STARFISHES. 555 appear that the change towards loss has advanced further on the west coast of Scotland than on the east and in Norway. (2) Segmentation. Segmentation proceeded regularly in most of my specimens, equal holoblastic cleavage being the rule and not the exception. The eggs float, the pole which keeps undermost being usually a little lighter in colour than the upper pole, but there is not the same marked difference either as regards specific gravity or colour between the upper and the under poles as in the eggs of Solaster endeca. Masterman did not find that there was any definite or consistent type of segmentation in his ova of Cribrella, and he does not refer to differences in colour or specific gravity between the upper and the under sides (9, p. 377). (3) Blastula formation.—The surface-furrows along which egression takes place during blastula-formation almost certainly exhibit reversion to the segmentation patterns. In the early blastula the lines are very numerous, simulating an advanced stage in segmentation; then they become fewer, simpler, and deeper, so that sometimes we cannot tell with the naked eye whether we are looking at an advanced blastula or at an 8-celled, a 4-celled, and a 2-celled stage in segmentation. Peculiarities in the arrangement of the early segmentation-furrows (e. g. obliquity of the first cleavage plane, or marked inequality in the first and second divisions) tend to emerge again in the late blastula, ‘as may be seen if one watches the development of isolated ova which exhibited the peculiarities in question. I have had the oppor- tunity of noting a similar phenomenon in the case of Solaster papposus, and in Solaster endeca (1, p. 12) I called attention to the similarity between the cell-egression furrows and the segmen- tation-furrows. Masterman’s illustration (9, pl. 1. fig. 6) of an early gastrula of Cribrella strikingly recalls a 4-celled stage in cleavage. (4) Hypenchyme.—In my gastrule and early larve there was only a small quantity of cellular material within the archenteron, less than one-fourth of: this cavity being filled with the material in question (cf. Solaster, 1, p. 45). Masterman describes the archenteron during these stages as being entirely filled with hypenchyme (9, p. 381). (5) Pharyngeal or perioral celom.—I can confirm the obser- vation of Masterman that this celom arises in the form of interradial pouchings from the posterior ccelom, and can add further that such pouchings oceur in interradii LIT. and I.-V.* as well as in the others, a point regarding which Masterman did not speak with certainty (9, p. 416). The pharyngeal celom arises by a single outgrowth in Asterina (7, p. 358) and Asterias rubens (2, p. 259), as alyo in Ophiothri« (8, p. 497) and Synapta (8, p. 536). On the other * The numbering of rays adopted in this paper is that employed by MacBride in his account of the development of Asterina, and by myself in the case of Solaster, Asterias, and Porania. The madreporic radius is I-II., ray I]. being on its dextral or watch-hand side as viewed from the oral aspect. | 59% 556 DR. J. F. GEMMILL ON THE hand, in Solaster (see p. 560) it takes origin by a series of inter- radial outgrowths as in Cribrella. (6) The periheemal pouches.—Perihemal pouch 1./IT. has been described (Masterman, 9, p. 392) as taking origin from the axial sinus portion of the anterior ccelom, being thus exceptional inas- much as the rest of the pouches take origin from the posterior celom. I find that the exception is apparent, not real, and that actually the pouch in question arises from the dorsal horn of the posterior celom. At about the eleventh day the tip of this horn bends leftwards, thus coming to lie between hydroccele pouches I. and II. A day or two later an opening is effected between the axial sinus region of the antericr ceelom and the dorsal horn of the posterior ceelom a short distance back from the tip of this horn. ‘Two or three days afterwards the anterior celom and the dorsal horn of the posterior celom again become closed off from one another, but in such a manner that the new septum cuts off the tip of the horn and leaves it for a time connected with the anterior colom, from which, however, it soon separates off to become perihzemal pouch I./II. The process is illustrated on Pl. IL. figs. 6-9. Occasionally one finds that the perihemal pouch in question remains longer in open connection with the posterior than with the anterior ccelom. MacBride (7%, p. 360) and Goto (5, p. 235) in Asterina, and Masterman (9, p. 392) in Cribrefla, described perihemal pouch 1./II. as arising from the preoral celom. However, in Solaster endeca (1, p. 35), Asterias rubens (2, p. 260), Asterias, double hydroceele (4, p. 64), I found that the pouch arose from the dorsal horn of the left posterior ccelom, although, owing to the com- munication between dorsal horn and axial sinus, it appeared at first sight as if the peuch in question took origin from the last- named cavity. In Solaster endeca (1, p. 35) and, I can now add, in Solaster papposus, the origin of pouch I/II. from the posterior celom is perfectly definite. In Asterina, as in Cribrella, there is a secondary communication between the dorsal horn of the posterior ccelom and the axial sinus. (7) Whether the tarval posterior ccelom is morphologically single or double.—So far as I can judge, in my early larvee of Cribrella there are no signs of doubling of the larval posterior ccelom. Later, any features which could be interpreted in this sense affect chiefly the dorsal and ventral horns, and appear at a time when the natural differentiation of these horns leads to their dividing more or less into right and left forks. In the case of the dorsal horn the leftward fork is. at first the only one to appear, and it becomes perihemal pouch 1./IT. as described above under 6. From the right one, which appears later, there arises pharyngeal pouch L./IL., the genital pocket, and ultimately also the ccelom within arm-rudiment II. In the case of the ventral horn, the leftward fork burrows to the left or oral side of the stalk of the preoral lobe in order to reach the internal aspect of hydroceele pouch I., while the right fork passes to the aboral side of the DEVELOPMENT OF SOME STARFISHES. 557 stalk in question. The two forks thus ride saddlewise on the preoral lobe-stalk, but when this stalk is obliterated, the saddle- cavity simply fills out to form the ceelom within arm-rudiment I. Further, in general, during the growth of the larva, as the epigastric ccelom remains relatively small, the larval posterior ceelom has to encroach somewhat. on the right or aboral side, and in particular sections the encroaching shelf may give an impression of bifidity. Masterman described indications of early doubling of the pos- terior ccelom, and considered these as supporting his view that the ceelom in question is made up of right and left morphological elements, namely, a right posterior and a left posterior ccelomic cavity. This view, although it might suit the ontogeny of Cribrella, is out of harmony with the data from other starfishes and from echinoderms generally, including double-nydrocele specimens. In discussing the subject elsewhere (2, p. 234; 8, p. 32) I have put forward the view that the larval posterior (future hypogastric) celom of Solaster is morphologically a left posterior celom originating from the gut by a separate, meta- merically posterior, ouberowtlh, and that the cor responding cavity on the right side, ‘namely the epigastric ccelom, originates, as in Asterina, Asterias, Echinws, etc., by backward extension of the anterior ccelom. (8) Sequence in formation of hydrocele pouches.—The first thickenings for the hydroccele pouches make their appearance at about the’ ninth day, pouch I. being slightly the latest. There- after, pouches IIT. and IV. differentiate a little more quickly than the rest; pouch V. and pouch IJ. are next in order; while pouch I. is the slowest. According to Masterman the growth series usually begins with pouch V. (his pouch I.) and gradually works round to pouch I. (his pouch V.). The facts are of interest in connection with the question as to what is the proper number- ing of the rays in Cribrella and other starfishes (2, p. 276). (9) Hnantiomorphic and double-hydrocele larve.—Masterman has stated (9, p. 403) that enantiomorphic specimens, 7. e. speci- mens in which the hydroccle develops on the right instead of the left side of the larva, are probably not uncommon in Cribrella. None, however, was observed in my series. Indeed, in very large sare bets of steidielh larve examined from time to one (Asien rubens, Solaster papposus, S. endeca, Porania) I have not come across a single example of this abnormality, and only one specimen (Porania) in which a right instead of a left hydropore was present. No double-hydrocele or double-hydropove larvee were found in Cribrella, although examples of these abnormalities are not infrequent in other starfishes (4, p. 69). (10) The brachiolarian notches.—A special gap or notch (oral brachiolarian, or hydroccelic, notch) between pouches J. and V., such as occurs so markedly in Asterina, Asterias rubens, and Solaster, is not characteristic of Cribrella. Nor is there at any 558 DR. J. F. GEMMILL ON THE stage a gap or wide separation (aboral brachiolarian notch) between arm-rudiments I. and II. of the disc. Arm-rudiments I. and V. are, however, kept apart for a time during the retraction of the preoral lobe towards the oral side of the disc, through having between them that region of the preoral lobe which carries the right lateral brachium. A hydroccelic (oral brachiolarian) notch between pouches J. and V. is characteristic (w) of feeding attaching brachiolarian larve, e. g., Asterias rubens (2), Asterias pallida (5), Porania (3); (6) of forms proximately derived from these, e. g., Asterina (7); (c) of multiradiate forms in which the extra rays are added to one or both ends of an open hydroceele crescent, e. g., Solaster endeca (1) and S. papposus. On the other hand, absence of a marked hydro- ecelic notch is characteristic of (4) non-attaching feeding bipin- nariz of the Bipinnaria asterigera type; (6) quinque-radiate forms with abbreviated ontogeny, e. g., Cribrella and Asterias miillert. The presence or absence of a well-marked aboral brachiolarian notch obeys similar rules, but we must note that this notch when present occurs between arm-rudiments I. and I1., not I. and V., of the disc. (11) Relation of hydrocele to larval stalk.—in Asterias rubens at metamorphosis, retraction of the preoral lobe to the oral aspect of the disc takes place rapidly through the action of muscular fibres developed beneath the ectoderm and in the coelomic walls. Tn Solaster the process, though slower, is effected by muscular fibres which pass from the wall of the preoral ccelom to the oral aspect of the disc. In both cases the gap (see under 10 above) between the dorsal and ventral horns of the hydroceele crescent allows the stalk to be dragged into the concavity of the crescent and to be clasped for a time by the hydroceele ring as the latter is completing itself. In Cribrella the hydroccele, being practically from the first a small complete ring or disc, does not have the chance of enclosing the larval stalk. However, a set of retractor muscle- fibres similar to those in Asterias and Solaster makes its appearance at metamorphosis, passing to the centre of the oral surface super- ficially to the hydroceele and dividing into branches, some fibres from which pass deeply towards the wall of the gut, while others diverge interradially. At the place where the retractor muscle arises from the wall of the preoral ccelom, a slight outpouching can be recognised as early as the 12th day, and later (18th day) a very distinct pocket from the preoral celom passes towards the centre of the disc in interradius I./V. (see Pl. IT. fig. 10). Had the hydroceele in Cribrella been an open crescent instead of a closed ring, the retractor fibres above-described would in all likeli- hood have drawn the stalk and its cavity within the grasp of the hydroccele crescent, as occurs in Asterias, Asterina, and Solaster. We must look upon the early closed condition of the hydroceele in Cribrella as less primitive than its open formation in Asterias, In the latter, it seems entirely probable that the ontogenetic DEVELOPMENT OF SOME STARFISHES. 559 retraction of the preoral lobe and its incorporation with the oral surface of the starfish repeat the phylogenetic changes in virtue of which, after fixation, the preoral lobe disappeared and the mouth, with the esophagus, migrated to the centre of a disc- like area which gradually developed radial symmetry. Bo coascaspncabeosecoces WIL || ID CHOOSE Wo Seoosuscoeneo seo ceosoo dor 735 Poppea sabina, sp. Meeps: se sees 722 | Lygropia pasithea, sp.n. ............ 735 Plecoptera polymorpha pole Pionia nigripunctalis, sp. N.......... 736 nia, form. n. fe Sacco RA || JEs GranOtADGKIS) Oe Woscan-t oodbopocnnaacon USO Brevipecten clear -chus, sp. Mei cies 723 | Melittia hematopis, sp. n............. 736 In my former memoir on this subject (P. Z. 5. 1915, p. 91) I mentioned that there were a good many species of the Feather Collection which still remained to be examined, and that I hoped to be able to give in another memoir the result of my enquiries into some of them. This I propose to do in the pre- sent paper, but, owing to pressure of space in the forthcoming number of P. Z.8., I am only able to deal with a certain per- centage of the material in my possession. Meanwhile, a most interesting paper has been published by Professor Poulton (P. Z. S. 1916, p. 91), dealing with Mr. Feather’s Collection in Somaliland, in which a large number of new species are described, * Communicated by the SECRETARY. 7 For explanation of the Plate see p. 737. 708 LT.-COL. J. M. FAWCELT ON some of which I also find in the Feather Collection from B. E. Africa, a circumstance which is accounted for by the contiguity of the two districts. The forms represented in both collections are mostly those characteristic of the drier steppes, as was to be expected, owing to the very dry climate of Somaliland. The insects recorded in this memoir were, I understand, almost entirely taken at light on wet nights, the great majority of them at Kedai and Masongaleni. in hee already given the approximate elevation of these places in my former paper on this subject, but it may be as well to repeat it here :— (1) Kedai, British East Africa. Altitude 2500 feet, 120 miles from the coast. (2) Masongaleni, — ditto. Altitude 3000 feet, 182 miles up Uganda Railway. Practically all the captures were made in the months of November, December, January, March, April, and a few in June. It is curious that I have no records for the other months of the year. Perhaps the months mentioned are the rainy seasons of the year. A record of the rainfall and temperature at Kedai would have been most interesting, and I regret that I cannot supply it. Out of 124 forms dealt with in this paper, 45 appear to be new, so far as I have been able to ascertain, not having had access to foreign literature on the subject, and this seems a large proportion. Some of the described forms have not previously been recorded from Africa, and others are only represented by the type-specimen in the B. M. Collection. My friend Lady Colvile made a fine collection of lepidoptera at Meru, but she mainly devoted herself to butterflies, with a stray moth or two thrown in; it 1s therefore remarkable that I should have found some undescribed forms amongst these solitary speci- mens, and it shows what can be done in this region by anyone who will really take up collecting there and work at it. F The numbers prefixed to the names of species carry on my previous record on the subject in P. Z. 8S. 1915, and thus start at 125. In this memoir, B. M. stands for British Museum, and C. L. P. for Hampson’s ‘ Catalogue of the Lepidoptera Phaleenze.’ The figures have been drawn and painted by myself to exact Sizeu el Taw e not had space to figure all the new forms described, but I hope to do so in a future paper. HETEROCERA. Family AMATID &. 125. Apisa CANESCENS Walker, Cat. iv. p. 917 (1855). Habitat. Masongaleni, 25th June, 1911, 1 9; Kedai, 5th Jan. 1913,14 ; Kisanaia, Lake Albert, 19th Trae: 1911, lod. MOTHS FROM B. I. AFRICA. 709 The above specimens are smaller, the antenne of the males less highly pectinated than in a specimen in my collection from Natal. The specimen from Kisanaia is white, the others hyaline, diffused with fuscous. Also recorded from Somaliland. Family ARCTIAD 4. Subfamily ARcTIANA. 126. EsTiGMENE GRISEATA Hampson, P. Z. 8. 1916, p. 103. Habitat. Kedai, 30th Nov. 1912,1¢. Described from Somaliland. Agrees fairly well with Hampson’s figure, but is yellow, and has no marginal spots on fore wing. 127. PerIcaLLrA HECATE, So, iM, (IE, AL, ie, 8).)) Description.— $. Head and thorax pale brown. Abdomen scarlet above, with transverse black dorsal stripes on the somites : yellow on the underside, with a lateral row of black spots between the red and yellow areas. Legs with tibie red, tarsi black and ochreous. Fore wing pale brown covered by various waved lines composed of fuscous irroration; a black spot at end of cell. Subbasal, antemedial, and medial lines indistinct, excurved on median nervure. Postmedial and submarginal lines crenulate, angled outwards between the veins. 24th Nov. 1992) Ig: This seems a very variable species; all the specimens have the medial area suffused with dark brown before the postmedial line, but the extent of the suffusion is variable in breadth; two specimens, taken on 24th and 25th Nov. have the band very narrow, and the antemedial line and rufous suffusion before it obsolete. The March and April specimens are normal. 155. EupHIUSA HERMIONE, sp.n. (PI. I. fig. 3.) Description.— 3. Head, thorax, and abdomen pale ochreous. Fore wing: basal area pale violet ; antemedial line represented by a red-brown striga on the costa, but obsolete below it, inside which is an ochreous band from costa to inner margin. Rest of wing pale violet from antemedial line nearly to outer margin, where it is greyish violet. Postmedial line represented by a short red-brown line, before which is a diffused red-brown costal patch from costa to vein 6; beyond this line a bright ochreous subapical patch. A marginal series of black points between the veins. Cilia ochreous. Hind wing bright ochreous, greyish towards the margin, with distal and subterminal darker bands from costa to av angle. A dark brown marginal band. Cilia ochreous, with white patches between veins 1 and 2 and 4 and 6. U nderside pale ochreous with dark spots at end of cell, and traces of a fine postmedial line. Form 2. OCHREATA. nov. Similar to hermione in size, shape, and markings, but with the pale violet replaced by pale ochreous beyond the antemedial line, up to the subterminal line (which in this form is clearly detined = MOTHS FROM B. BE. AFRICA. 115 by bright ochreous). Subterminal area of hind wing in some specimens with a broad fuscous band, inwardly much diffused. Underside of fore wing with diffused fuscous subterminal band. Habitat, Hermionn, Kedai, 1911, 9th Nov., 1 go, 25th Nov., 1¢ (type); 1912, 9th March, 2¢, 15th March, 2¢. Masongaleni, 1911, 25th April, 1¢. OcHreEATA, Kedai, 1911, 24th Nov., 3 ¢ (incl. type). Mason- galeni, 1911, 28th March, 1 9, 2nd April, 1 9. Exp. 38 mm. 156. Grammopss stoLipa Fabricius, Syst. Ent. p. 599 (1775). Habitat. Kedai, 12th Dee. 1911, 1 <¢. 157. RemiciopEs ReMIGINA Mabille, C. R. Soc. Ent. Belg. XXVlil. p. exci. (1884). Habitat. Kedai, 12th Dec. 1911,1 9. Masongaleni, 14th May, 1911, 1 go; 25th Nov. 1911, 1S (the last is a very black specimen). 158. Pericyma umBrina Guen. Noct. iti. p. 4 (1852). Habitat. Kedai, 10th Dec. 1912, 1¢. Hitherto only recorded from India. 2 (1913). 159. CortyTa REMIGIANA Hampson, C. L. P: xu. p. 3 IN@Wa; Jb Se Habitat. Kedai, 24th Nov. 1911, 1 93; 28th 4th Jan. 1913, 1 ¢. 1 Oo 160. Corryra BALNEARIA Distant, A. M. N. H. (7) i. p. 228 (1898). Habitat. Kedai, 25th Dec. 1911, 1 9. Hitherto recorded only from the Transvaal and Mashonaland. 161. Cortryra vetusta Walker, Cat. xxxili. p. 875 (1865). Habitat. Kedai, 12th Nov. 1911, 1 9. 162. CorTyTA MINYAS, sp. n. Description 6 2. Head and thorax greyish ochreous. Abdo- men ochreous. Fore wing: basal area pale ferruginous; subbasal line represented by an indistinct black striga from costa to vein 1. Antemedial line black and waved, with a bright ferruginous band inside it on the basal area. Medial area between ante- and post- medial lines grey, with indistinct waved bands of fuscous irroration. Reniferm ochreous indistinctly defined. Postmedial line black, outwardly oblique below costa, sharply angled outwardly at veins 6, 4, and 3, and inwardly on discal fold and interspace 2, and thence straight to inner margin. Subterminal area pale ferruginous, with two fuscous subapical spots between veins 6, 7, and 8 in the interspaces, one between veins 3 and 4, and one on inner margin before tornus. Two diffused grey subterminal patches between 49* 716 LY’.-COL. J. M. FAWCETT ON veins 6 and 4 and 3 and 1. A fine crenulate black terminal line. Cilia of both wings ochreous. Hind wing bright ochreous, the terminal half with very indis- tinet diffused brown strize between veins 4 and 2, and on vein 1. An interrupted terminal line of black Iunules. Underside pale ochreous; a davk reniform annulus at end of cell, obsolete in some specimens. Habitat. Masongaleni. 31st March, 1911, 1 9. Kedai, 29th Dec. 1912,1 ¢. Exp. 30-34 mm. Form 2. GRISEACEA, nov. Differs from minyas in the whole of the fore wing bevond the antemedial line being grey, with a subterminal ferruginous irregular band, brightest below apex. Otherwise as in that species on upperside; underside white striated with fuscous on costal and apical areas; a black spot at end of cell. Habitat. Kedai, 15th Dec. 1911,1 9; 15th Jan. 1912,1 2. Exp. 30 mm. These forms are clearly intermediate between C. dispar Piing., from Palestine, on the one hand, and C. fasciolata Warr., from the Sudan, on the other. 163. CorrytTa Fascrouata Warr. Nov. Zool. xii. p. 24, pl. iv. figs. 11, 21 (1905). Habitat. Kedai, 5th Jan. 1912,1 ©. Subfamily PHyTroMErRIn&. 164. PuHyromerra cHaLcyres Esper, Schmett. iv. p. 447, pl. exl. fig. 3(1789). Habitat. Kedai, 7th April, 1912, 1 6. Not recorded from Africa in C, L. P. Subfamily Nocrurn®. 165. PANpEsMA ANySA Guen. Noct. 11. p. 439 (1852). Habitat. Kedai, 25th Nov. 1911,1 3 ; 7th Jan. 1912,1 @. Also recorded from Somaliland. 166. PoLypESMA COLUTRIX Geyer. Habitat. Masongaleni, 25th June, 1911,1 9. Also recorded from Somaliland. Genus GALACTOMOTA, noy. (yaka=milk, dpoios, a, ov=like.) Type, G. berenice, sp. n. Proboscis aborted ; palpi stout, reaching top of head, clothed with thick hair. Eyes large, round; top of head covered with MOTHS FROM B. E. AFRICA, 717 thick hair. Antenne of male bipectinated for two-thirds of length, filiform at extremity; female filiform throughout. Thorax clothed with thick hair. Abdomen with paired dorsal tufts on the somites. Legs clothed with long hair on femora and tibie, especially the fore legs. Fore wing: apex rounded, the termen crenulate. Veins 3, 4, 5 from lower angle of cell, 6 from upper angle. Hind wing: veins 3, 4 from angle of cell, 5 from a little above it, 6 and 7 stalked from upper angle of cell. 167. GALACTOMOIA BERENICE, sp. n. (PI. I. fig. 15.) Description.— $ . Head and thorax creamy white, tinged with red-brown ; palpi red-brown ; extremities of tegule and patagia dark red-brown. Antenne red-brown, bipectinated for two- thirds of length, filiform on outer third. Abdomen red-brown except the two anal segments, which are creamy white, and the vertex of the first two on which are two dorsal creamy-white tufts, the remainder of the dorsal tufts red-brown. Fore wing creamy white, basal area dark brown, narrowly on costa, and continued obliquely outward to a point on vein 1, where it is cut by the antemedial line, where it forms an angle before bending downwards to inner margin. Two red-brown patches on the costa, terminated by the antemedial and postmedial lines inwardly. These two lines are obsolescent and only indicated 1) where the antemedial line meets the brown area on vein 1, and (2) where the postmedial line crosses interspaces 1, 4, 5, and 6, where it is indicated by traces of a black line. Hind wing creamy white, with a red-brown spot at end of cell, and another at anal angle, round, and defined above by a blackish spot on inner margin. Cilia white, except below vein 3 on fore wing, where it is red-brown. Underside white, costa ochreous, marked as on upperside, except that the basal spot is absent and there is a spot at the end of cell. 2 much paler, almost white. The black postmedial line com- plete, dentate, excurved to points in the interspaces. Hind wing with an indistinct red-brown submarginal line. Habitat. Masongaleni, 21st March, 1911, 19. Kumasi, W. Afriva, 1 3 (A. Norris). The male specimen from Kumasi is a good deal darker in coloration. There is a specimen of this form in the B. M. Collection, but it has not yet received a name. Genus GIRIA, nov. Type, G@. bubastis, sp. n. Proboscis fully developed. Palpi upturned, long, third joint reaching well above vertex of head. Legs with the tibiz covered with long hair. Abdomen without crests. Antenne filiform. Fore wing comparatively short; outer margin non-crenulate, excurved to an angle at vein 4; a tuft of long hairs in cell on underside; veins 3, 4 from lower angle of cell, 5 from just above 718 LT.-COL. J. M. FAWCETT ON it, 6 from upper angle; 9, 10 anastomosing with 8 to form the ar feolet Hind wing: welll half the length is wing; veins 3, 4 from lower angle of cell, 5 from just above it, 6 from upper end of cell, 8 anastomosing with cell near base. 168, Girra BuBastis, sp. n. (Pl. I. fig. 14.) Description.— 9. Head and thorax red-brown ; abdomen reddish ochreous dorsally, underside pale ochreous with a lateral series of black spots. Palpi ochreous, the third joint long, fuscous, with a white spot at extremity. 'Pibie ochreous, with long hair; tarsi brown banded with ochreous, Fore wing with the space between the base and the postmedial line dark red- brown, tle outer area beyond this line ochreous, thickly irro- rated with red-brown atoms, on which the ochreous veins show up prominently. A red-brown subapical patch on the costa, outwardly bordered with grey. Two basal dark brown spots defined outwardly by a grey line, one on costa, and one just below it at base of cell. Antemedial line fuscous, defined in- wardly by a grey line, waved to inner margin. Stigma repre- sented by a black point; reniform indistinetly defined by a black line. Postmedial line pale ochreous, outwardly oblique to vein 6, then angled sharply inwards and straight to inner margin. Two black spots in submedian interspace close to tornal angle. Cilia red-brown. Hind wing fuscous, darkest towards apex; outer margin and cilia ochreous. Underside pale ochieous, irrorated with black atoms. Fore wing with a large submarginal black patch between veins 2 and 5, Habitat. Mombasa, 31st March, 1911, 1 9. Exp. 46 mm. This form is not very near to anything I could find in the B. M. Collection; perhaps the nearest is Plecoptera lacinia Saalm., from Madagascar. Genus TAVETA, nov. Type, 7. syrinx, sp. Proboscis fully developed ; palpi upturned, long, third jomt reaching well above vertex of head; mid and hind tibie spined, without long hair. Abdomen with hairy crests on first three segments only. Wings with the outer margin crenulate. Fore wing with a tuft of long hair on underside of cell. Veins 2, 3, 4 from lower angle of cell, 5 almost touching the origin of 4, 6 and 7 from upper angle, 8 and 9 stalked to form the areole. Hind wing: cell one-third the length of wing; veins 2, 3, 4 as in fore wing, 6 and 7 from upper angle of cell, 8 meeting cell close o base. 169) TAVETA SV RIN sp. nm. 8 (Plo dT sies 135) Description. 3. Head, body, abdomen, and wings bright ferrmginous brown ; palpi fuscous. Underside of body and legs ochreous, Wore wing striated profusely before antemedial line. MOTHS FROM B. EH. AFRICA, 719 Subbasal line indistinct, incurved below subcostal nervure. Ante- medial line a double pale waved line with ferruginous centre from costa to Inner margin. Postimedial line fine, black, and dentate, inwardly defined by white, and situated on a prominent black dentate band, strongly ineurved below vein 4 to inner margin. ‘pi ee ee li ee fi, ‘ditt a set} aie es BeOS Ca tis red aif ay ae aver Wine. “I ise) is) THE SECRETARY ON ADDITIONS TO THE MENAGERIE. EXHIBITIONS AND NOTICES. October 24th, 1916. Dr. A. SmrrH Woopwarp, F.R.S., Vice-President, in the Chair. The Secrerary read the following report on the Additions made to the Society's Menagerie during the months of May, June, July, August, and September, 1916 :— May. The registered additions to the Society’s Menagerie during the month of May were 129 in number. Of these 81 were acquired by presentation, 8 were received on deposit, 24 by purchase, 6 in exchange, and 10 were born in the Gardens. The number of departures during the same period, by death or removals, was 117. Amongst the additions special attention may be directed (60) = A Kashmir Deer (Cervus hanglu) 2, from Kashmir, presented by H.G. The Duke of Bedford, K.G., Pres.Z.S.,on May 17th. A Reindeer (Rangifer tarandus) 2 , born in the Menagerie on May 22nd. 1 Galapagan Dove (Nesopelia galapagoensis), new to the Col- lection, from Hood Island, Galapagos, presented by Fleet-Surgeon EK. B. Pickthorn, F.Z.S., on May 31st. 4 Grey-necked Crowned Cranes (Lalearica regulorwm), from Northern Rhodesia, presented by H.G. The Duke of Abercorn, F.Z.8., on May 8th. 3 Great Bustards (Otis tarda), from Spain. presented by E. J. H. Eldred on May 29th. 1 Holbrook’s Terrapin (Chrysemys mobiliensis) and 1 Horned Lizard (Phrynosoma brevicornis), from N. America, both new to the Collection, presented by Dr. H. G. F, Spurrell, F.Z.S., on May 3rd. JUNE. The registered additions to the Society’s Menagerie during the month of June were 87 in number. Of these 34 were acquired by presentation, 8 were received on deposit, 1 by purchase, 1 in exchange, and 43 were born in the Gardens. The number of departures during the same period, by death or removals, was 102. Amongst the additions special attention may be directed to :— 1 Red-eared Cercopitheque (Cercopithecus erythrotis), from the Cameroons, presented by Mrs. Philip Bayer on June 28th. 1 Black Mangabey (Cercocebus aterrimus), from the Belgian Congo, purchased on June 29th. 740 THE SECRETARY ON ADDITIONS TO THE MENAGERIE. 1 Lion Cub (felis leo), from Western India, presented by Lieut. W. Pole Carew on June 12th. 2 Andean Geese (Chloephaga melanoptera), bred in the Mena- gerie on June 30th. 2 Colombian Crested Colins (Hupsychortyx leucopogon), from Colombia, presented by Master Anthony Chaplin on June 22nd. JULY. The registered additions to the Society’s Menagerie during the month of. July were 99 in number. Of these 46 were acquired by presentation, 11 were received on deposit, 9 by purchase, 5 in exchange, and 28 were born in the Gardens. The number of departures during the same period, by death or removals, was 94. Amongst the additions special attention may be directed to :— 2 Fennec Foxes (Vulpes zerda), from North Africa, received in exchange on July 24th. 1 Grizzly Bear (Ursus horribilis), from Wyoming, presented by Ellis Ashmead-Bartlett on July Ist. 1 Kiang (Hquus kiang) 3, born in the Menagerie on July 9th. 1 White-bearded Gnu (Connochetes albojubatus), born in the Menagerie on July 24th. 2, Common Trumpeters (Psophia crepitans), from Guiana, and 1 Green-winged Trumpeter (P. viridis), from the Amazons, pur- chased on July 13th. 5 Common Rheas (hea americana), bred in the Menagerie on July 20th. AUGUST. The registered additions to the Society’s Menagerie during the month of August were 75 in number. Of these 52 were acquired by presentation, 18 were received on deposit, and 5 in exchange. The number of departures during the same period, by death or removals, was 93. Amongst the additions special attention may be directed to :— 1 Fishing Cat (Felis viverrina), from India, received in exchange on August 18th. 1 Siberian Wild Dog (Cyon alpinus), from Central Asia, received in exchange on ‘August 30th. 2 Arctic Foxes (Vulpes lagopus, blue variety), from Iceland, presented by Commander V. L. Bowring, R.N., on August 5th. 2 South American Mudfish (Lepidosiren paradoxa), from Para, presented by G. Brocklehurst on August 8th. SEPTEMBER. ; The registered additions to the Society’s Menagerie during the month of September were 56 in number. Of these 46 were acquired by presentation, 8 were received on deposit, 1 in exchange, and 1 was born in the Gardens. The number of departures during the same period, by death or removals, was 146. EGGS FROM THE SOCIETY’S GARDENS. 741 Amongst the additions special attention may be directed to :— 1 Bornean Gibbon (/7/ylobates mwuelleri), from British North Borneo, deposited on Sept. 21st. 1 Southern River-Hog (Potamocherus cheropotamus) 9 , from Mozambique, presented by Capt. William Dyer on Sept. 19th. 1 Pink-winged Rose-Finch (2hodospiza obsoleta), from Central Asia, new to the Collection, presented by Alfred Hzra, F.Z.S., on Sept. 8th. Yellow Varieties of Green Parrakeets. Mr. Aurrep Hzra, F.Z.S., exhibited living examples of three rare lutino Parrakeets, and made the following remarks :— “The three lutino Indian Parrakeets I am exhibiting were sent to me by my brother from India a few weeks ago. They represent three species—the Alexandrine (Palwornis nepalensis), the Ring-neck (P. forquatus), and the Plum-head (P. cyano- cephalus). In all three birds the yellow is pure and perfect, being of a delicate sulphur shade common in these lutinos. The Alexandrine has the usual red patch on the wing, and the wing- coverts adjacent to it are also edged slightly with red, making the bird very beautiful. Neither the Alexandrine nor the Ring- neck has a ring, but the Plum-head has a pink head. As they all have the fuli long tail they must be more than a year old. The Ring-neck and the Plum-head both have red eyes and _ flesh- coloured feet, but the Alexandrine’s eyes are normal in colour and the feet are light: however, some races of the Alexandrine have pale-coloured feet naturally. All these birds are rare, but the Alexandrine, which is the finest-looking bird, is also the rarest of the lot, and is the first lutino of the species I have ever seen.” Eggs from the Society's Gardens. Y Mr. D. Setra-Surru, F.Z.8., Curator of Birds, gave an exhibition of Birds’ eggs which had been laid in the Society’s Gardens during the last few years. He explained that every endeavour was made to induce the birds under his charge to reproduce their kind in captivity, and fertile eggs were incubated where possible ; but, nevertheless, in any large coilection of birds there was always a number of eggs laid that did not hatch, and very often unpaired female birds laid eggs as. freely as paired birds, these being of course infertile. During recent years eggs that were not likely to hateh had been kept, with the result that a fair series was now in the possession of the Society. Amongst the eggs of special interest shown were those of four species of Tinamous, two species of Cassowary, three species of Crane, three species of Zurnia, the remarkable eges of Apterya, and such rarities as those of ARhinechetus jubatus, Manucodia keraudreni, and Sarcorhamphus gryphus, x8 well as a number of species of Pheasants, Waterfowl, and Passerine birds. 742 NESTLING BIRDS FROM THE SOCIELY’S GARDENS. November 7th, 1916. Dr. S. F. Harmer, M.A., F.R.S., Vice-President, in the Chair. Nestling Birds from the Society's Gardens. Mr. D. Sera-Suirn, F.Z.8., Curator of Birds, exhibited a series of skins of nestling birds of over seventy species. He called attention to the striped colour-pattern which was found in such very distinct species as Rheas, Sheldrakes, and Pheasants, and remarked that this pattern was evidently of very great antiquity, and inherited from some common ancestor. Where it had proved effective for the preservation of the species by its protective resemblance to surroundings it had been retained, but in other cases 1t had been modified or had even disappeared altogether. In the case of most of the ducks, the stripes had been broken up into spots, but showing more or less the same pattern as in the striped type of markings. In the Gulls, Waders, and others the stripes had been further broken up into spots, and in the Swans, Geese, and Rails all markings had disappeared. Mr. Seth-Smith called attention to the young of the Coscoroba Swan (Coscoroba coscoroba), and remarked that this was the only swan, if, indeed, it was a swan, which showed a distinct colour- pattern in the nestling down. Scent-Glands in Mammals. (Text-figures 1-12.) Mr. R. I. Pocock, F.R.S., F.L.S., F.Z.8., Curator of Mammals, exhibited a series of lantern-slides to illustrate the position and structure of some new and little-known cutaneous scent-glands in various mammals, and made the following remarks :— The Inguinal Glands of Orycteropus. My search for special scent-glands in Orycteropus was insti- gated by the strong smeil given off by the living animal, and was rewarded by the discovery, first in a female and then in a male, of a pair of large glands upon the genital eminence. In the female they lie one on each side of the vulva, and in the male just behind the prepuce and the short conical glans penis. The orifice of each gland is an elongated shit, which, when constricted and closed, may easily be overlooked. It leads into a short wide sac filled with yellow secretion, smelling like that of the anal glands of a Polecat (J. putoriws). The layer of glandular cells is thick and envelops the lower portion of the wall of the sac, which is provided with a strong constrictor muscle. In the male these two glands, imbedded in the integu- ment just behind the penis and with their orifices tolerably close together, cause a swelling which superficially resembles a scrotum. In the female there is a somewhat similar swelling with the vulva in the centre and the glands, which are widely separated, on each side of it. Since these glands, so far as can be judged from the material examined, are equally well developed in the two sexes, they Text-figure l. 743 AVA ANA t i = << 4 (4) = \ f,, Tnguinal glands of Orycteropus capensis. A. Glands of the female. a., anus; em., genital eminence ; v-, vulva; o.. orifices of the glands. B. The same of the male with the gland of the right side (left of figure) laid open to show the reservoir or sac (gl.) and the secreting layer of cells (s.); p., penis ; ¢., base of tail; a., em, o., as in fig. A, 744 MR. R. I. POCOCK ON cannot be included in the category of secondary sexual cha- racters, although their scent may enable individuals of Orycteropus to find one another; and since these animals are. otherwise unprovided with means of self-defence, I suspect that the secretion of the glands is protective like those of the anal glands of Mephitis and Mustela, which it resembles in odour. Text-figure 2. ! “ ——~ ~, v= BQO, se oe —— ZN Ao SH ANS : VY = iss S S, ANS CS g Gy NN NG Ri We SOY > [Zi 2 The preputial gland of Sus scrofa. A. The gland dissected from the ventral side, the flaps of abdominal integument and of the sheath of the penis turned aside. The glans penis also turned aside to show the orifice of the gland in the prepuce. B. Lateral view of the same, partly diagrammatic. C. Transverse section through the sac of the gland showing its extension above the’ penis. P.» penis; pr., prepuce; o., orifice of gland; s., sac of gland; sh., cut edge of sheath of penis; sk., cut edge of skin of abdomen. SCENT-GLANDS IN MAMMALS. 745 The Digital Glands of Potamocherus and other glands in the Suide. Several genera of Suidze are provided with special cutaneous glands, all of which, with the exception of the digital glands of Potamocherus, were described long ago. In the Pecearies (Zayassu or Dicotyles) there is on the fore- part of the lumbar region a median dorsal gland, normally Text-figure 3. SS Oe vy WES Ww “tos \Y Ae P STAYIN S 4 Aiur 3 Beatie Aes Ea Carpal gland of Sus scrofa, 3. A. Inner side of right fore foot, showing the series of apertures of the gland. B. Section through one of the pockets. = concealed beneath the bristles, which discharges secretion re- sembling concentrated human perspiration in scent. It was known to Cuvier, and was described and figured by Owen*. Both male and female possess it. ’ Owen also described a facial gland between the eye and the * Anat. Vert. 111. Mammals, p. 636, 1868. Proc, Zoou. Soc..-1916, No. LI, HL 746 MR. R. I. POCOCK ON snout in the Wart-hog (Phacocherus). This gland, which I have not seen, resembles, apparently, the analogous gland of many Ruminant Artiodactyles. In males of the genus Sws there is a voluminous preputial gland, the sac of which lies above the distal end of the penis and Text-figure 4. wy aay ee ' c Sry . ES To SS Se = Tet yrds a at us yy > & Non (is = tS Ss 2a, A 7a /, 0 . Iii, Gy [2 Wh NA WR) Wy (Lig W A \ TY io Cc The digital glands of Potamocherus cheeropotamus, 3. A. Lower view of hind foot, showing the apertures of the glands in the lateral digits and between the third and fourth digits of the foot. B. Vertical longitudinal section between the third and fourth digits of the same foot, showing the gland. ; C. Lower side of the fore foot of the same animal, showing the presence of the lateral and the absence of the median gland. R D. Vertical longitudinal section of one of the lateral glands of the same foot. o., orifice; s., sac of gland. SCENT-GLANDS IN MAMMATS. TA7 the median aperture opens in the dorsal wall of the prepuce. I have examined this gland in Sus scrofa; but its presence or absence in other genera and species of Suide has yet to be established. In Sus scrofa also there is a subvertical series of small glands on the postero-inner side of the carpus and known as the carpal glands. he carpal and preputial glands have long been known in domestic swine, the carpal glands being present both in boars and sows. Digital Glands of Potamocherus.—These glands, which do not appear to have been previously recorded, 1 discovered on the fore and hind feet of a male example of the South African River-hog or Bush-pig (Potamocherus cheropotamus), which died in the Gardens, Oct. 30th, 1911. On the fore foot there is a pair of these glands, one of them opening upon the skin of the lower side of the second digit, a little above the base of the hoof, and the other in a corresponding position on the fifth digit. Each is marked externally by a small pore with a thickened circular rim. ‘The sac of the gland, filled with white, waxy secretion, is tolerably capacious and flask- shaped, the neck of the flask being represented by a short, narrow duct leading to the pore and bent nearly at right angles to the long axis of the gland, which projects upwards within the digit. By pressure the secretion can be squeezed from the orifice of the gland. The hind foot has two precisely similar glands on the second and fifth digits and, in addition, a third unpaired gland nearly resembling them and opening in the centre of the sole of the foot, a short distance behind the cleft between the second and third digits. The flask-shaped sac of the gland, filled like the others with waxy secretion, lies in the foot between the bones of these digits. 1 do not know whether these glands are confined to the male or not; but no trace of them was to be discovered in a young female of the West African species (P. porcus). Seeing that two distinct species are here concerned, it is clearly impossible to draw any sure conclusion as to the absence of these glands in the female of P. chwropotamus and to their presence in the male of P. porcus. Nevertheless, the constancy in the occurrence of similar glands in nearly related species of ruminant Artio- dactyles justifies, by analogy, the expectation that these digital glands will be found to be a secondary sexual character confined to the male in the genus Potamochwrus. The Metatarsal Glands of Lama vicuna. On each side of the metatarsus Llamas have an elongated naked patch of skin with which everyone who has kept these animals is probably acquainted. In a female example of Zama viewna this area, pink in colour 51* 748 MR. R. I. POCOCK ON and situated in the upper part of this portion of the leg, was broadest in its upper half, pointed below and bluntly rounded above. It was almost concealed by the thick coating of woolly hair surrounding it. Its surface was depressed into the hollow Text-figure 5. GEES, ep Sn" Se Pesce. : STAT EOS TNE AVA Ny PIB Ay Gy ING i Aas OTE RINSE & Metatarsal gland of Lama vicuna. to) A. Vertical transverse section through right metatarsus passing through the glandular area. a., space on left side for holding the secretion between the partly separated upper and lower fringes of hair; g/., naked skin with its layer of secreting cells; b., metatarsal bone; ¢7., extensor, and ft., flexor tendons of the foot. B. Upper part of same portion of limb, before being cut, seen from the inner side, with the hairs clipped short to expose the glandular area (g/.). marking the point of contact between the metatarsal bone and the strong flexor tendons of the foot. A secreting layer of SCENT-GLANDS IN MAMMALS. 749 dermal cells everywhere underlies the naked area, which was covered with waxy secretion. The Preputial Gland of Nototragus. Up to the present time Moschus is the only Ruminant Artio- dactyle in which a preputial gland has been discovered. I found a gland similarly situated in the Grysbok (Wototragus melanotis), a small African Antelope. The sac of the gland was 14 inches long and 1-inch wide and narrowed anteriorly towards the orifice, which was situated in the prepuce just above the tip of the glans penis. The sac, extending backwards parallel with the penis, had its liming integument ridged and wrinkled and covered with long hairs, the tips of which were directed towards the orifice. The strong- smelling secretion, filling the sac, was dark green in colour and waxy 1m consistency. Text-figure 6, Preputial gland of Nolotragus melanotis. gl., sae of gland filled With hairs; p., penis retracted; o., preputial orifice comimion to gland and penis. Since discovering the gland IT have had no opportunity of examining male examples of Ourebia, Rhaphiceros, and other antelopes related to Vototragus. The Dorsal Gland of Dendrohyrax. In the Hyracoidea the presence of a dorsal gland, marked externally by a patch of white, yellowish, or black hairs, has long been known to systematic zoologists. In Dendrohyrax dorsalis the glandular area is an elongated strip of naked skin, rather more than twice as long as broad, widest across the middle, gradually narrowed and pointed in front, more abruptly narrowed and blunter behind. The hairs surrounding it are long, black at the base and white distally. The lateral portions of the naked strip are bluish grey, minutely en 750 MR. R. I. POCOCK ON and sparsely speckled with hair follicles, and show a pair of larger follicles in the anterior half, one set on each side close to the median portion of the area, when is marked off from the rest by its pinkish-yellow tint. Beneath this pink portion the dermal layer is thickened by the enlargement of its secretory cells, When stimulated by fear or anger Dendrohyrax raises the hairs over the glandular area, displayi ing their whiteness as a conspicuous patch . The action irresistibly recalls the expansion of the rump patches by some deer and antelopes when put to flight. Text-figure 7. Photograph of Dendrohyrax dorsalis showing the white patch of hairs overlying the dorsal gland. The Temporal Gland of Elephas and Loxodonta. The presence of a gland on each side of the face in Elephants has long been known. Owen succinctly described it as follows :— ‘In the Elephant a large gland of a flattened form and multi- lobate structure lies beneath the skin of the face, in the temporal reeion: the secretion exudes from a small orifice situated about half-way between the eye and the ear. The gland enlarges in 751 a = — RSIS Bs ee a = —— Ses : ——— az MR. R. I. POCOCK ON Text-figure 9. Photog raph of young Malayan Elephant showing position of temporal gland between the eye and ear, ~ ’ © SCENT-GLANDS IN MAMMALS. 753 the male at the rutting season, and the secretion then has a strong musky odour” (Anat. Vert. i. p. 634, 1868). ; In an African Elephant, about twenty years old, the orifice of the gland wasa vertical slit, about 4 inch long, opening six inches behind, and a little higher than, the eye. The main sac of the gland, into which a few subsidiary sacs opened, was about two inches deep and filled with strong smelling secretion. The wall Text-figure 10. Enlarged view of the gland of young Malayan Elephant, showing tuft of hairs projecting from the orifice. of the sac was composed of thick white skin, and its lining was hairless but covered with coarse papille. In a young Malayan Elephant, about three years old, on the other hand, the sac of the gland, about 4 an inch deep, was eovered with hairs packed together with sour smelling secretion and long enough to project beyond the orifice of the gland as a 754 SCENT-GLANDS IN MAMMALS. distinct black tuft very noticeable in the living animal. In two young Indian Elephants of approximately the same age, the gland was marked by no such tuft, and was invisible in the Z THY ry ~ AS Q apy, 7: SSS s ab Sif Temporal glands of Elephants. A. Vertical section of sac of gland of the African Elephant (Zoaodonta). 0., orifice of gland; d., orifice of a diverticulum opening into the main sac. B. The same of young Malayan Elephant (H/ephas), showing the sac of the gland filled with hairs protruding from the orifice (0.) as a facial tuft. Text-figure 12. Sketch of the head and fore-quarters of the La Madelaine Mammoth, showing the supposed gland between the eye and the ear. (Copied from ‘Cave Hunting,’ by W. Boyd Dawkins, p. 346, fig. 120.) wrinkled chin unless carefully looked for. It is also normally invisible in adult and immature cow elephants of the Indian ON A SHOOTING EXPEDITION IN CENTRAL ASIA. 755 species except at times when the secretion overflows and forms a dark streak down the side of the face. I have never seen a full-grown bull in rut, and am unable to speak as to the quantity of secretion discharged at that period. In the paleolithic engraving of a Mammoth on a fragment of tusk found in the cavern of La Madelaine, by Lartet & Christy, there are between the eye and ear distinct scars, with streaks passing downwards from them over the jaws. These scars and streaks represent, I believe, the gland and the hairs on the face beneath stuck together with secretion. It will be noticed that the streaks are thicker than those shown elsewhere on the body and head, which are always interpreted as hairs; and it may be supposed that they were engraved in this way to depict hairs adherent with the sticky substance. If this interpretation be correct, the conclusion suggests itself that in the mammoth the gland may have been larger than in modern elephants, and possibly provided during life with hairs protruding through the orifice. November 21st, 1916. Dr, S. F. Harmer, M.A., F.R.S., Vice-President, in the Chair. The Secrerary read the following Report on the Additions made to the Society’s Menagerie during the month of October, 1916 :— The registered additions to the Society’s Menagerie during the month of October were 77 in number. Of these 51 were acquired by presentation, 11 were received on deposit, 12 by purchase, and 3 were born in the Gardens. The number of departures during the same period, by death or removals, was 139. Amongst the additions special attention may be directed to :— A pair of Wild Boars (Sus scrofa), from the forest of Lhuyére- Sevigny, Oise, France, presented by Capt. Maurice Portal, F.Z.8., on Oct. 23rd. ! 1 Sclater’s Ovange-headed Tanager (Calospiza lunigera) and 1 Golden Tanager (Calospiza aurulenta), both from Kcuador, presented by Alfred Ezra, F.Z.8., on Oct. 12th, A Shooting EKapedition in Central Asia. Mr. Aurrep Ezra, F.Z.8., exhibited a large series of lantern- shides illustrating a shooting expedition in Central Asia, and made the following remarks :— The pictures I am showing were taken by me on a shooting expedition in Central Asia in 1902. Starting from Calcutta, I travelled by train to Rawalpindi, and from there a drive of St 756 ON A SHOOTING EXPEDITION IN CENTRAL ASIA. 200 miles brought me to Srinagar, the capital of Kashmir. Here I made all arrangements for food, followers, and transport. Soon after leaving Srinagar we successfully tackled two mountain passes. These were the Tragbal Pass, 11,700 ft., and the Burzil Pass, 13,500 ft. On the way to Gilgit I spent a few days after markhor, ibex, and bears. We did the journey of 150 miles, from Gilgit to the Pamirs, in 15 days, the progress being so slow on account of the difficult nature of the country. The mountain- tracks in places were most precipitous and dangerous. These tracks were often conducted round the edge of precipices over- hanging the river by artificial ladders and ledges built out from the cliff, with stones laid upon supports of branches fitting into holes in the rocks. The most unsafe looking bit was where a log not more than 6 inches wide was thrown across, with one end of it resting on a rock jutting out 20 feet above, and the lower end on some stones. Under this there was a sheer drop of about 2000 feet into an angry river. Without the help of the fine Hunza men who were sent with us, we should have had the greatest difficulty in getting over this terrible country safely. We had our first view of the Pamir region from the top of the Killik Pass (16,700 ft.). Here we stood at the point where three “great Empires meet— Russia to the north, to the east the boun- daries of the Chinese Empire, and British India to the south. After shooting a few Ovis poli in some of the valleys in the Chinese Pamirs, I went on to the Russian Pamirs, where [ shot some more. As no one ever shoots in the latter place, game was most plentiful, and one day I saw as many as 200 Ovis poli rams in a small valley. From here I worked my way down to the plains of Kashgaria, and it was a treat to come down from those awful altitudes and to see trees and flowers again. For over six weeks I had not been lower than 12,000 ft., and most of the time well over 14,000 ft. Leaving Kashgar at the beginning of August, I went to the Thian Shan Mountains in search of Wapiti— travelling through Maralbashi, Aksu, and Koksu—a distance of 576 miles. After shooting the Asiatic Wapiti in the Koksu Valley I went on to Kuldja, from where a drive of 850 miles in a tarantass (a four-wheeled carriage without springs) brought me to Tashkent in Russian Turkestan in 15 days. Since leaving the railway at Rawalpindi and reaching the railway at Tashkent I travelled 2583 miles in seven months, having walked and ridden 1533 miles and driven 1050 miles. Of course this does not include the enormous distances covered in search of game. From Tashkent I took the train to Samarcand and Bokhara, spending a couple of days at each of these interesting old places. A journey of 40 hours from Bokhara by train brought me to Krasnovodsk. Here I crossed the Caspian Sea to Baku in about 16 hours, and there I visited some interesting naphtha wells. From Baku I took the express to Moscow and Petrograd, making a stay of a few days at each place. Thence to Paris and home, bringing to an end a most interesting and enjoyable expedition.” No. 160. ABSTRACT OF THE PROCEEDINGS OF THE LOOLOGICAL SOCIETY OF LONDON.* October 24th, 1916. Dr. A. Smits Woopwarp, F.R.S., Vice-President, in the Chair. The Minutes of the last Scientific Meeting were confirmed. The SECRETARY read a Report on the Additions made to the Society's Menagerie during the months of May, June, July, August, and September, 1916. Mr. AurreD Ezra, F.Z.S., exhibited living examples of three rare lutino specimens of Alexandrine (Paleornis nepalensis), Ring-neck (P. torguatus), and Plum-head (P. cyanocephalus) Parrakeets recently received from India. In all these birds the yellow is pure and perfect, being of a delicate sulphur shade. The Alexandrine is the rarest of the three, and the first lutino of this species Mr. Ezra has seen. Mr. D. Sers-Smiru, F.Z.S., Curator of Birds, exhibited a number of birds’ eggs which had been laid in the Society’s Gardens during the last few years. The specimens shown in- cluded eggs of Tinamous, Cassowaries, Cranes, Turnix, Apteryx, and the Kagu, as well as species of Pheasants, Waterfowl, and Passerine birds. * This Abstract is published by the Society at its offices, Zoological Gardens, Regent's Park, N.W., on the Tuesday following the date of Meeting to which it refers. It will be issued, along with the ‘ Proceedings,’ free of extra charge, to all Fellows who subscribe to the Publications; but it may be obtained on the day of publication at the price of Sixpence, or, if desired, sent post-free for the sum of Six Shillings per annum, payable in advance. 38 Mr. S. Mauuix, B.A., F.E.S., read a paper on Cryptostome Beetles in the collection of the Cambridge University Museum. The collection is a representative one, containing species from all parts of the world. Three new genera, one new subgenus, and two new species are described. Mr. H.G. Newrn, A.R.C.S., F.Z.8., gave a preliminary account of his investigations into the early development of the Echino- derm Cucumaria. The larval life is very short as compared with that of the Auricularia. It takes place at the expense of the yolk, and is complete in about five days. Formation of the celomic vesicles occurs by the bending and constriction of the archenteron. No separate anterior celom appears. The hydrocel ring closes in the left dorsal interradius, and the radial canals and five primary oral tentacles arise directly from it, alternating with one another. The internal madreporite arises as a secondary differentiation of the walls of the stone-canal. Mr. R. E, Turner, F.Z.S., F.E.S., communicated a paper on the Wasps of the genus Pison. 109 species are dealt with, of which 15 are described as new. Reasons, drawn from the nume- rical distribution of the species in different areas, are given for supposing the genus to be in a declining state—fifty of the total number of species being from the continent of Australia, In addition to Pison the small allied genera Aulacophilus and Pison- opsis are dealt with, one new species of the former being described. The next Meeting of the Society for Scientific Business will be held on Tuesday, November 7th, 1916, at 5.80 p.m., when the following communications will be made :— D. Sers-Smiru, F.Z.S8. Exhibition of specimens of various nestling Birds. R. I. Pocock, F.R.S., F.Z.8. Exhibition showing some undeseribed or little-known Scent- glands in Mammals. 39 ¥. E. Bepparp, M.A., D.Sc., F.R.S., F.Z.S. On Two new Species of Cestodes belonging respectively to the Genera Linstowia and Cotugnia. James F. Gemuity, M.A., M.D., D.Sc., F.Z.S. Notes on the Development of the Starfishes Asterias glacialis O. F. M., Cribrella oculata (Linck) Forbes, Solaster endeca Retzius (Forbes), Stichaster roseus (O. F. M.) Sars. The following Papers have been received :— B. F. Cummines. Studies on the Anoplura and Mallophaga, being a Report upon a Collection from the Mammals and Birds in the Society’s Gardens.—Part IT. Lt.-Col. J. M. Fawcert. Notes on a Collection of Heterocera made by Mr. W. Feather in British East Africa, 1911-13. L. A. Borrapaite, M.A., F.Z.S. On the Structure and Function of the Mouth-parts of the Palemonid Prawns. A. pe C. Sowrrsy, F.Z.8. On Heude’s Collection of Pigs, Sika, Serows, and Gorals in the Sikawei Museum, Shanghai. Sir Grorce F. Hampson, Bt., F.Z.S8. On the Classification of the Tineinz, a Subfamily of Moths of the Family Pyralide. The Publication Committee desire to call the attention of those who propose to offer Papers to the Society, to the great increase in-the cost of paper and printing. This will render it necessary for the present that papers should be condensed, and be limited so far as possible to the description of new results. 40 Communications intended for the Scientific Meetings should be addressed to P. CHALMERS MITCHELL, Secretary. ZOOLOGICAL Society oF Lonpon, Recent’s Pann, Lonpon, N.W. October 31st, 1916. No. 161. ABSTRACT OF THE PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON.* November 7th, 1916. Dr. S. F. Harmer, M.A., F.R.S., Vice-President, in the Chair. The Minutes of the last Scientific Meeting were confirmed. Mr. D. Seru-Smrru, F.Z.S8., Curator of Birds, exhibited a series of skins of nestling birds representing more than seventy species. He called attention to the striped colour-pattern in such very distinct species as Rheas, Sheldrakes, and Pheasants, and remarked that this pattern was evidently of very great antiquity and in- herited from some common ancestor. He also drew attention to the young of the Coscoroba Swan, which was the only swan——if, indeed, it was a swan—that showed a distinct colour-pattern in the nestling down. Mr. R. I. Pocock, F.R.S., F.Z.S., Curator of Mammals, exhibited a series of lantern-slides to illustrate the position and structure of some new and little-known cutaneous scent-glands in Mammals, and drew special attention to the presence of inguinal glands in Orycteropus, digital glands in Potamocherus, metatarsal glands in Zama, and a preputial gland in Nototragus, which apparently had not been previously described. Dr. F. E, Bepparp, M.A., F.R.8., F.Z.S., read a paper con- taining the descriptions of two new species of Cestodes. The first species was obtained from a Slow Lemur and was referred to the genus Linstowia; the second occurred in a Black-headed Partridge and was placed in the genus Cotugnia. * This Abstract is published by the Society at its offices, Zoological Gardens, Regent's Park, N.W., on the Tuesday following the date of Meeting to which it refers. It will be issued, along with the ‘ Proceedings,’ free of extra charge, to all Fellows who subscribe to the Publications; but it may be obtained on the day of publication at the price of Si«pence, or, if desired, sent post-free for the sum of Siw Shillings per annum, payable in advance. 42 Dr. J. F. Gemini, M.A., M.D., F.ZS., gave an account of his paper on the development of some Starfishes. Asterias glacialis—A small solid outgrowth from the stomach- wall is found in nearly all early larve, and a brood occurred in which this outgrowth was larger, developed a central cavity, and fused with the backwardly growing ccelomic cavity of the left side. It is interpreted as a rudimentary posterior enteroccelic outgrowth. Cribrella oculata.—It is shown that the perihemal pouch belonging to the madreporic interradius arises from the dorsal horn of the left posterior ccelom, that the aboral skeleton arises in the form of scattered plates without definite radial and inter- radial arrangement, and that the terminals are formed by fusion of several of these plates. Solaster endeca.—The author’s previous description is supple- mented in various points, including the following :—(1) All the periheemal pouches arise from the posterior coelom; (2) there are outgrowths from the posterior ccelom to form the preoral ccelom in all the interradii ; (3) closure of the hydroceele-ring takes place in interradius viii./ix.; (4) the mouth-angle plates and anterior processes of the first ambulacrals arise as single continuous calcifications. Stichaster vroseus.--The early development of this species resembles that of Asterias rubens, and, although the larve were not reared to their later stages, it is inferred as almost certain that the final larval form will prove to be a brachiolaria attaching itself at metamorphosis.” The next Meeting of the Society for Scientific Business will be held on Tuesday, November 21st, 1916, at 5.30 p.m., when the following communications will be made :— ALFRED Ezra, F.Z.S. Lantern Exhibition illustrating a Hunting Trip in Central Asia. Prof B. Prtnonrevics & Dr. A. Surrn Woopwarp, F.RS.,V-P.ZS. On the Pectoral and Pelvic Arches of the London specimen of Archeopteryx. 43 B. F. CumMInes. Studies on the Anoplura and Mallophaga, being a Report upon a collection from the Mammals and Birds in the Society’s Gardens.—Part IT. Lt.-Col. J. M. Fawcert. Notes on a Collection of Heterocera made by Mr. W. Feather in British East Africa, 1911-13. The following Papers have been received :— L. A. BorrapaiLe, M.A., F.Z.8. On the Structure and Function of the Mouth-parts of the Palemonid Prawns. . A. DEC. SowErsy, EZ: On Heude’s Collection of Pigs, Sika, Serows, and Gorals in the Sikawei Museum, Shanghai. Sir Grorce F. Hampson, Bt., F.Z.S. : On the Classification of the Tineine, a Subfamily of Moths of the Family Pyralide. The Publication Committee desire to call the attention of those who propose to offer Papers to the Society, to the great increase in the cost of paper and printing. This will render it necessary for the present that papers should be condensed, and be limited so far as possible to the description of new results. Communications intended for the Scientific Meetings should be addressed to P, CHALMERS MITCHELL, Secretary. ZooLoGIcAL SociETY oF Lonpon, Recent’s Park, Lonpon, N.W. November 14th, 1916. No. 162. ABSTRACT OF THE PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON.* November 21st, 1916. Dr. 8. F. Harmer, M.A., F.R.S., Vice-President, in the Chair. The Minutes of the last Scientific Meeting were confirmed. The Secrerary read a Report on the Additions made to the Society’s Menagerie during the month of October. Mr. Atrrep Hzra, F.Z.8., gave an account of a shooting expedition in Central Asia, and illustrated his remarks with a very fine series of lantern-slides. Dr. B. Prrronrevics and Dr. A. Smrra Woopwarp, F.R.S., V.P.Z.S., read a paper on some new jarts of the pectoral and pelvic arches lately discovered in the London specimen of Archeo- pteryx. The coracoid bone most closely resembles that of the ratite birds and the Cretaceous LHesperornis. The pubic bones are twice as long as the ischia and meet distally in an extended symphysis, gradually tapering to a point, which seems to have been tipped by a mass of imperfectly ossified cartilage. Mr. B. F. Cummines contributed a paper entitled ‘Studies on the Anoplura and Mallophaga, being a Report upon a Collection from the Mammalsand Birds in the Society’s Gardens—Part II.” This paper continues the account of the Mallophaga, and contains descriptions of five new genera and two new species. Some observations are made upon the spermatophores in a genus parasitizing the Ibises, and emphasis is laid on the frequently * This Abstract is published by the Society at its offices, Zoological Gardens, Regent's Park, N.W., on the Tuesday following the date of Meeting to which it refers. It will be issued, along with the ‘Proceedings,’ free of extra charge, to all Fellows who subscribe to the Publications ; but it may be obtained on the day of publication at the price of Sixpence, or, if desired, sent post-free for the sum of Six Shillings per annum, payable in adyance. 46 remarkable differences found in the structure of the internal organs, especially those of the male reproductive system. Lt.-Col. J. M. Fawcrerr communicated a paper on a collection of Heterocera made by Mr. W. Feather in British Kast Africa.— Of the 124 forms dealt with, 45 are described as new, together with 7 new genera. The next Meeting of the Society for Scientific Business will be held on Tuesday, February 6th, 1917, at 5.30 p.m. The agenda will be announced early in January. The following Papers have been received :— _ L. A. Borrapatte, M.A., F.Z.S. On the Structure and Function of the Mouth-parts of the Palemonid Prawns. A. DE C. SowErsy, F.Z.S. On Heude’s Collection of Pigs, Sika, Serows, and Gorals in the Sikawei Museum, Shanghai. The Publication Committee desire to call the attention of those who propose to offer Papers to the Society, to the great increase in the cost of paper and printing. This will render it necessary for the present that papers should be condensed, and be limited so far as possible to the description of new results. Communications intended for the Scientific Meetings should be addressed to P. CHALMERS MITCHELL, Secretary. ZOOLOGICAL Socrety or Lonpon, Recent’s Park, Lonpon, N.W. November 28th, 1916. Papers (continued). 29. Notes on the Wasps of the Genus Pison, and some allied Genera. By Rowrayp Hi. Adapenay,, A yShIaHSis= Ga s5 Gudoudds a aise OR Go eT Me vais, karen eee Ry vaierastintaye es 30. The Early Development of Cucumaria: Preliminary Account. By H. G. Newrn, A.R.C.S., F.Z.S., Demonstrator of Zoology at the Imperial College of Science and Mechnolosy. (Plates lds Ek., amd Dext-neurel.) ss. cae vied eore « culeee «+ 31, Studies on the Anoplura and Mallophaga, being a Report upon a Collection from the Mammals and Birds in the Society’s Gardens.—Part II. By Bruce F. Cumsines, British Museum of Natural History, (Text-figures 1-36.) ......0e.c00.eseecees : 32, On Two new Species of Cestodes belonging respectively to the Genera Linstowia and Cotugnia. By Frank H. Bepparp, M.A., D.Se.(Oxon.), F.R.S., F.Z.S. (Text- i MUTE ial A®) eagaretteestellctevers olagetejorslelsycloletere#faici’s « Sameretincs Ce Oe eC eC Ce 33. Notes on a Collection of Heterocera made by Mr, W. Feather in British East Africa, ROIS = Cole da Mi Mawionpt as (late ln)yt. avr salc-cc als lesatsinl s)sielons etoleriane Vitlepage ...:..-.. SUOINT EULA ogg coo ose Oooo s DORON cor avenspeasioncee eke aNetetens ales Histo Councleamd OMcenrss vse aes optel dey cee ad griinerite at sce oenel d's cle tecovosle’e Wi svevel avait ales List of Contents Mlpaetical Mist (Ot ConmbriDMtOrs co creel oe) ans hee eMicA She alnreltce lea ecnle wer ele'e's n> BA cupid WRndeRe ea Seniets anasto Page 591 643 li Vil XLil LIST OF PLATES. 1916, Parr LV. (pp. 553-756). Page GeMMILL: Pls. I. Asterias glacialis peas cee IL. 6-10. Cribrella oculata. ll. ‘Silasi enlae oy 4 Newrn: Pls. I. & 11. 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