do Zoologie, n° 12 Exchange publications sent by Publication(s) offerte(s) aux fins d'échange par Library/Bibliothèque National Museums of Canada Musées Nationaux du Canada Ottawa, Ontario, Canada K1A OM8 Digitized by the Internet Archive in 2011 with funding from California Academy of Sciences Library http://www.archive.org/details/publicationsinzo 12nati A New Nonparasitic Species of Lamprey, Genus Lethenteron (Petromyzonidae), from Eastern Tributaries of the Gulf of Mexico, U.S.A. National Museum of Natural Sciences Publications in Zoology, No. 12 Published by the National Museums of Canada Staff editor Frances Smith Crown copyrights reserved National Museum of Natural Sciences National Museums of Canada Ottawa, Canada Fourth quarter 1975 Information Canada Catalogue No. NM95-10/12 P0987654321 Y798765 Printed in Canada ISSN 0068-8037 Musée national des Sciences naturelles Publications de Zoologie, n° 12 Publié par les Musées nationaux du Canada Droits réservés au nom de la Couronne Musée national des Sciences naturelles Musées nationaux du Canada Ottawa, Canada Quatrième trimestre 1975 Information Canada N° de catalogue NM95-10/12 T0987654321 A798765 Imprimé au Canada A New Nonparasitic Species of Lamprey, Genus Lethenteron (Petromyzonidae), from Eastern Tributaries of the Gulf of Mexico, U.S.A. V. D. Viadykov, Edward Kott, and S. Pharand-Coad Acknowledgements The present study was made possible through the generous help of many persons and institutions. The study specimens were kindly loaned by the following persons: Dr. Branley A. Branson and Mr. Bruce H. Bauer, Depart- ment of Biological Sciences, Eastern Kentucky University; Drs. Warren V. Brigham and Larry M. Page, Section of Faunistic Surveys and Insect Identification, Illinois Natural History Survey; Drs. Hubert Boschung and Thomas S. Jandebeur, Department of Biology, University of Alabama; Dr. Frank J. Bulow, Department of Biology, Tennessee Technological University; Dr. George L. Harp, Arkansas State University; Dr. John S. Ramsey, Department of Fisheries and Allied Aquacultures, Auburn University; and Dr. Martin L. Wiley, Natural Resources Institute, University of Maryland. Many measurements of specimens were made by Mrs. Jacqueline Lanteigne-Courchéne, a student, and photographs were prepared by Mr. G. Ben-Tchavtchavadze, both of the Department of Biology, University of Ottawa. Dr. Carl L. Hubbs, Scripps’ Institution of Oceanography, Dr. Don E. McAllister and Mr. C.G. Gruchy, National Museum of Natural Sciences, Ottawa, carefully read the manuscript and offered many valuable suggestions. This study was supported by Grant No. A-1736 from the National Research Council of Canada. To all these persons and institutions the authors extend their most sincere thanks. Summary À new nonparasitic lamprey, Lethenteron meridionale, from streams of the Tennessee, the Alabama, and the Tombigbee river systems, is described and illustrated. The holotype (NMC 74-249) is depos- ited in the National Museum of Natural Sciences, Ottawa, Canada. The species is distinguishable from Lethenteron lamottenii, its nearest relative, by fewer myomeres (50-58), dentition, and pig- mentation. By its row of posterial teeth L. meridionale is easily separable from Lampetra aepyptera, which occurs in the same watersheds. The description is based on an examination of 79 transformed individuals and two ammocoetes. Résumé Cet article décrit le Lethenteron meridionale, une espèce nouvelle de lamproie non parasite des ruisseaux tributaires des rivières Tennessee, Alabama et Tombigbee. L’holotype (NMC 74-249) se trouve au Musée national des Sciences naturelles, a Ottawa, Canada. Cette nouvelle espèce diffère du Lethenteron lamottenii, par sa dentition, sa pigmentation et son nombre inférieur de myomères (de 50 à 58). Sa rangée de dents postérieures la dis- tingue aussi de la Lampetra aepyptera qu’on rencontre dans les mêmes réseaux hydrographiques. La description se fonde sur une étude de 79 individus métamorphosés et de deux ammocètes. Biographical Notes V. D. Viadykov Vadim D. Vladykov was born in Russia and studied at Charles University in Prague, where he specialized in zoology and anthro- pology, receiving his Ph.D. in 1925. In 1930 Dr. Viadykov came to Canada, and from 1930 to 1936 was employed by the Biological Board of Canada (now the Fisheries Research Board of Canada) as a fisheries biologist. In 1936 he became a Canadian citizen. For the next two years he worked as a fisheries biologist for the State of Maryland and as professor of ichthyology at the University of Maryland. In 1938 he returned to Canada and joined the Biology Department of the University of Montreal as professor of ichthyol- ogy, a post he held until 1942. From 1943 to 1958 he was director of the Biological Laboratory of the Quebec Department of Fisheries. In 1958 he joined the staff of the University of Ottawa as professor of biology, a position he held until his retirement in 1973, at which time he was appointed professor emeritus. In the same year he accepted the honorary position of research associate at the National Museum of Natural Sciences. Dr. Vladykov was elected a fellow of the Royal Society of Canada in 1963. Dr. Vladykov is credited with more than 185 publications, and his specialties are the biology of the American eel and the taxon- omy of salmonids, sturgeons, and, especially, Holarctic lampreys. He has described several new species of lampreys from Europe and North America. Among Dr. Viadykov’s contributions to science, the studies of particular significance are those dealing with the description of characters by which larval lampreys (ammocoetes) of nonparasitic species and those of the parasitic sea lamprey (Petromyzon marinus) can be distinguished. This work now enables biologists to separate larvae of nonparasitic lampreys from those of parasitic lampreys, a task formerly impossible. For Canada and the United States this is a great financial and ecological saving, because treatment of streams and brooks is now restricted to those which contain larvae of the destructive sea lampreys. In recognition of his study of lampreys, a new species from central Europe was described under the name Eudontomyzon vladykovi Oliva & Zanandrea, 1959. Edward Kott Edward Kott obtained his academic training from the University of Toronto. He received his B.A. in 1960 and his Ph.D. in 1964. From 1963 to 1965 he was a lecturer in biology at Lakehead University, Thunder Bay, Ontario. In 1965 Dr. Kott joined the Fisheries Re- search Board of Canada, and from 1965 to 1967 worked at the Marine Ecology Laboratory of the Bedford Institute of Oceanogra- phy, Dartmouth, Nova Scotia. He is now associate professor of biology at Wilfrid Laurier University, Waterloo, Ontario. His research has been in the ecology of small mammals, community studies, and the ecology and systematics of lampreys. At present Dr. Kott is working in cooperation with Dr. V.D. Vladykov on the system- atics of North American lampreys. Biographical Notes S. Pharand-Coad Sylvie Pharand-Coad was born in Hull, Quebec, in 1950. She gra- duated from the University of Ottawa with an Honours B.Sc. in Zoology in 1972 and a B.Ed. in 1973. For four years (1971-74), Mrs. Pharand-Coad worked as a research assistant to Dr. V. D. Vladykov on the systematics of Holarctic lampreys. Her research interests are centred on the systematics and ecology of lampreys, amphibians, and reptiles. At present she is a high-school science teacher with the Ottawa Board of Education. Introduction The senior author (Vladykov 1973) recently described a nonparasitic lamprey, Lampetra pacifica, from the western United States. To compare critically this western species with the nonparasitic Lampetra aepyptera, from eastern and southeastern United States, he wrote to W.V. Brigham, who had just (1973) described spawning of Lampetra aepyptera in Tennessee. Thanks to Dr. Brigham’s co- operation, we were able to obtain specimens of L. aepyptera from several institutions in the following states: Alabama, Arkansas, Georgia, Kentucky, Maryland, Ohio, and Tennessee. Upon examining the specimens received, we found two species of nonparasitic lam- preys, one of which is Lampetra aepyptera (Abbott 1860), the other, which we here treat as a new species, referred to the genus Lethenteron Creaser and Hubbs 1922, of the family Petromyzonidae.* The aim of the present article is to des- cribe this new species and compare it with two other nonparasitic species, Lampetra aepyptera and Lethenteron lamottenii** (Le Sueur 1827). *Alternate spellings of the family are found in the literature (Viadykov 1974). **The name /amottenii is now, commonly without valid reason, spelled as /amottei (American Fish- eries Society, Committee on Names 1970). Methods and Materials All measurements and counts were typically made on the left side of the specimen, as established by Vladykov and Follett (1965). Measurements All measurements are expressed as percent- ages of the total length of the specimen; the disc length (d) is also expressed as a percentage of the branchial length (B,—B,). The following abbreviations are used, as in Vladykov and Follett (1965). a-C Tail length, the distance from the posterior edge of the cloacal slit to the end of the caudal fin. Trunk length, the distance from the posterior edge of the last (seventh) branchial opening to the anterior edge of the cloacal slit. Branchial length, the distance from the anterior edge of the first bran- chial opening to the posterior edge of the last (seventh) branchial open- ing. d Disc length, longitudinal diameter, with the oral fimbriae included, mea- sured with the disc closed. Prebranchial length, the distance from the anterior edge of the disc (in transformed individuals) or of the upper lip (in ammocoetes) to the anterior edge of the first branchial opening. Second dorsal fin maximum height, measured along the highest fin ray. 0 Eye length, the horizontal diameter of the eye. TL Total length, the distance from the anteriormost oral fimbria to the end of the caudal fin. B.-a Bi-B; hD, In addition, the number of oral papillae, the number of anterior oral fimbriae con- tained within a section equal to the width of the base of the supraoral lamina, and the number of velar tentacles were counted. In identifying ammocoetes, the number of trunk myomeres and body proportions were used. Pattern and intensity of pigmentation on head and tail were also noted (Vladykov 1950). Methods and Materials Material Examined The material of the new species of Lethen- teron consists of 79 transformed individuals from southern United States: 65 from Ten- nessee, 11 from Alabama, and 3 from Geor- gia; and 2 ammocoetes: one each from Tennessee and Alabama. The comparative material of Lampetra aepyptera consists of 53 transformed indi- viduals (28 from Alabama, 3 from Arkansas, 5 from Kentucky, 6 from Maryland, 3 from Ohio, and 8 from Tennessee) and 13 ammo- coetes (10 from Alabama and 3 from Ken- tucky). Data for each collection are given in the Appendix. 10 Description of New Species Lethenteron meridionale sp. nov. Gulf Brook Lamprey Figures 1-6 Etymology The species name meridionale is derived from the Latin meridies for midday, or south, and refers to the southern distribution. It is used in the neuter form to agree with Lethenteron. Holotype An adult male 104 mm in total length from Blue Springs Creek, a tributary of the Ten- nessee River, near Hillsboro, Coffee County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2830, now re-catalogued as NMC 74-249. It bears the plastic tag W667. This new nonparasitic species belongs to the genus Lethenteron Creaser and Hubbs 1922. This genus is well characterized by the arrangement of its teeth (Vladykov and Follett 1967). Diagnosis The new species clearly differs from its nearest relative, Lethenteron lamottenii (Le Sueur), also nonparasitic, by its low number of trunk myomeres in transformed speci- mens, varying between 50 and 58 (average 54), whereas in L. lamottenii the myomeres range from 64 to 74 (average 68). Other differences are summarized in Table 12. From another nonparasitic species, Lam- petra aepyptera (Abbott) living in the same watersheds, Lethenteron meridionale is readily distinguishable by possession of posterials,* varying in number from 10 to 21 (average 15.4). Posterials are completely lacking in aepyptera, as in all other species of Lampetra. Other differences between meridionale and aepyptera are given in Tables 7 and 11. Characters of Holotype The holotype, a male 104 mm in total length when received. Measurements of the holotype — referable to maturity stage 3 (Vladykov and Follett 1965) — each expressed as a percentage of * It is regrettable that Scott and Crossman (1973) omitted posterials on their schematic drawings of the disc of L. lamottenii, in spite of the fact that these teeth are always present in all species of Lethenteron. total length, are: prebranchial length, 10.6; trunk length, 46.6; tail length, 30.8; maximum height of the second dorsal fin, 5.3; disc length, 6.3; eye length, 1.9. Disc length as a percentage of branchial length is 59.1. Trunk myomeres (Figures 1 and 2), 52. The already cornified teeth are small. On each side of the disc there are three inner lateral teeth, all unicuspid. On the anterior field there are about 34 teeth, all practically the same size; on the posterior field there is a single row of 18 small posterials. The supraoral lamina is provided with one cusp at each end; the infraoral lamina has about 12 weakly developed cusps; the marginals are in two rows. The three lingual laminae are so poorly developed that the cusps are uncountable (Figure 3). Colour of the specimen preserved in 4-5% formalin is dark greyish brown on the flanks and back, and whitish along the ventral surface. Although the holotype is in the early stage of maturity, the dorsal fins are already high and close together, and the genital papilla is well-developed. There is an extensive, dark pigmentation of vertically elongated spots on the dorsal fins. A dark blotch sur- rounds the posterior section of the noto- chord; towards the edges of the caudal fin, the pigment becomes less pronounced (Figure 1). Characters of Paratypes Collection data for paratypes are given in the Appendix. Transformed Specimens Total length (Tables 1 and 2) The 55 males examined range in total length from 96 to 136 mm (average 115.8 mm); the 24 females range from 96 to 141 mm (average 116.7 mm). Body proportions (Tables 1 and 2) For the 55 males the average measurements as percentages of total length are: prebran- chial length, 11.7 (range 10.2-12.9); branchial length, 10.2 (range 9.1-11.4); trunk length, 48.0 (range 43.6-52.7); tail length 30.2 (27.3— 33.9); maximum height of second dorsal fin, 4.5 (3.0-5.7); eye length, 1.8 (range 1.5-2.1); disc length, 5.2 (4.2-6.5). Disc length as a percentage of branchial length is 51.5 (range 41.7-66.7). 11 Description of New Species For the 24 females the average measure- ments are: prebranchial length, 10.7 (range 7.8-13.0); branchial length, 10.0 (range 9.3- 11.4); trunk length, 51.4 (49.2-53.9); tail length 28.0 (26.0-30.3); maximum height of second dorsal fin, 3.8 (range 2.5-5.1); eye length, 1.7 (range 1.4-2.1); disc length, 4.8 (range 2.8-5.7). Disc length as a percentage of branchial length is 47.5 (range 27.6-57.1). Trunk myomeres (Table 5) The number of trunk myomeres in the trans- formed specimens of meridionale varies from 50 to 58 (average 53.8). Dentition (Tables 7-9) The teeth are small and often not fully corn- ified; hence some counts of them are un- certain. The teeth on the anterior field are uniformly small, averaging 16.1 (range 5-34) in number. The single row of posterials is typical for all species of the genus Lethen- teron. The posterials range in number from 10 to 21 (average 15.4), but are often weakly developed and difficult to count. The supra- oral lamina has two blunt cusps, one at each end; as an exception, one specimen, Tag W533, from Alabama, has a strongly devel- oped median cusp on the supraoral lamina. The rounded and weakly developed cusps on the infraoral lamina average 9.9, ranging from 6 to 13 in number. The typical number of inner laterals in the genus Lethenteron is six, three on each side of the disc. Infrequently, fewer than six (rarely aS many as eight) cornified inner laterals develop in meridionale. In three spec- imens (Table 8) all inner laterals are lacking. The average number of inner laterals is 5.5 (range 0-8). Although in the genus Lethen- teron all inner laterals are typically bicuspid, in L. meridionale they are usually unicuspid. The marginals tend to form two rows around the disc. The transverse and longitudinal lingual laminae are weakly developed and the cusps are uncountable. Anenlarged median cusp on the transverse lamina is typical of other species of Leth- enteron (Figure 4), but does not develop in L. meridionale. Other characters Velar tentacles were counted in two speci- mens of meridionale where only three ten- 1124 tacles were found: one median with a single lateral on either side. The average number of oral papillae around the disc in 55 specimens of L. meri- dionale is 14.2 (range 8-25). The number of anterior fimbriae within the width of the base of the supraoral lamina is somewhat variable. In 10 specimens from Tennessee the average is 17.2 (range 13-22) and in 5 from Alabama the average is 11.0 (range 9-15). The difference between the Tennessee and Alabama specimens appears to be related to the width of the supraoral lamina, which averages 2.6 mm in Tennessee speci- mens and 1.9 mm in those from Alabama. There are dark chromatophores in the buccal cavity but none extend onto the tongue. Colouration (Table 10) The sides and back of specimens fixed in 4-5% formalin are greyish brown and the lower surface is whitish. Dark pigmentation on the second dorsal fin, if developed, consists of a series of vertically elongated narrow dark spots. There is a distinct black blotch (Figures 1 and 2) on the caudal fin. The intensity of dark pigmen- tation varies with the geographical region; in specimens from the Tennessee-Mississippi drainage pigmentation is very pronounced, in contrast with those from the Tombigbee and Alabama rivers, where it is weakly deve- loped. Sexual dimorphism The external appearance of males and fe- males of Lethenteron meridionale is similar to that of L. lamottenii as described by Vladykov (1949). There are sexual differences in body pro- portions (Tables 1, 2, and 4). Disc length (d), prebranchial length (d-B,) and tail length (a-C) are greater in males; females have a relatively longer trunk (B,-a). All specimens were in prespawning condi- tion. One female (Tag W556, from Alabama), maturity stage 3, 122 mm in length, collected on 5 December 1963, had 2,154 eggs aver- aging 0.63 mm in diameter. Ammocoetes Only two ammocoetes were available, one from Tennessee (Tag W677), 100 mm long, and the other from Alabama (Tag W552), 142 mm. Body proportions expressed as percentages of total length were as follows: d-B,, 7.0-8.5; B,-B,, 11.2-12.5; B,-a, 50.5- 53.5; a-C, 28.5. The myomeres number 54 and 55. As in the transformed specimens, the ammocoete from Tennessee is more heavily pigmented than the one from Alabama. The limited number of specimens does not permit a critical description of the ammocoetes of Lethenteron meridionale. Comparison of Lethenteron meridionale with L. lamottenii In the Tennessee River tributaries from which the holotype and topotypes of L. meridionale were obtained, one male and one female of L. lamottenii (Tags W679 and W680) were collected, in Putnam County, Tennessee. These Tennessee specimens of the two nonparasitic species are compared in Table 12. The principal differences are found in the number and degree of development of different types of teeth (Figures 2 and 4). The number of myomeres in meridionale is 50- 58, whereas each of the two specimens of lamottenii from Tennessee has 68. Smith- Vaniz (1968) indicated 63-70 for /amottenii from the Tennessee River system in Alabama, and Trautman (1957) reported 63-73 from Ohio. Several authors, Valdykov (1949), Manion and Purvis (1970), and Kott (1974), observed a similar number in material from the St. Lawrence River and Great Lakes areas. Another striking difference between me- ridionale and lamottenii is in dark pigmen- tation of the second dorsal fin. In meridionale there are often several vertical narrow spots, whereas in lamottenii individual spots are absent, but a dark-brown tint made up of minute chromatophores is noticeable over the fin membrane (Figures 1 and 5). Lethenteron meridionale is asmall species, attaining less than 150 mm in total length, whereas some individuals of L. /amottenii have been reported to reach a “gigantic” size, up to 300 mm (Manion and Purvis 1970), but ordinarily reach 217 mm (Kott 1974). 13 Comparison of Lethenteron meridionale with Lampetra aepyptera In exterior appearance Lethenteron meri- dionale and Lampetra aepyptera are similar (Figure 2). For this reason all specimens that we now identify as meridionale were originally determined as Lampetra aepyptera in collections of the University of Alabama. Similarity between meridionale and aepyp- tera was observed in number of trunk myo- meres (Tables 5 and 6), in dark pigmentation of fins, and in size. However, a close exam- ination of body proportions (Tables 1-4) and dentition (Tables 7-9) revealed differences. See Table 10 for degree of pigmentation. Lethenteron meridionale and Lampetra aepyptera are compared in detail in Table 11. The principal differences between them are in numbers and degree of development of teeth on the anterior and posterior fields. The number of anterials average 16 (range 7-34) in meridionale and 8 (range 2-21) in aepyptera. The posterials are always present in all species of Lethenteron. In meridionale the number of posterials averages 15.9 (range 10-21). In all species of Lampetra, including aepyptera, the posterials are absent (Figures 3 and 6). Even in histological sections, Seversmith (1953) found no evidence of posterials in aepyptera. The number of inner laterals averages 5.5 (range 0-8) in meridionale and 4.6 (range 1-6) in aepyptera. In our material three specimens of meridionale are devoid of inner laterals. A similar loss in aepyptera was reported by Raney (1952). Two counts suggest that the fecundity of meridionale may be significantly higher than that of aepyptera: a 122-mm female of meridionale (Tag W556, from Alabama) con- tained 2,154 eggs, whereas a 118-mm speci- men of aepyptera (Tag W537, also from Alabama) collected on 2 February 1963, contained 1,547. Lethenteron meridionale and Lampetra aepyptera are placed in separate genera on the basis of the presence or absence of posterial teeth. In spite of their allocation to different genera, the two species are similar in myomere number, size, pigmentation, and reduction in number of teeth. One can speculate that these similarities may be due to parallelism, in which case assignment to different genera is warranted. Or, aepyptera may have lost its posterials and may share a recent common ancestor with meridionale. Lamprey collections from other Gulf states would hopefully cast light on this problem. 14 Geographical Distribution of Lethenteron meridionale This species has been collected so far only in freshwater streams in the eastern drainage of the Gulf of Mexico, that is, in Tennessee, Alabama, and Georgia. In Tennessee it has been collected in several tributaries of the Tennessee River system. It is significant to note that in streams of Putnam County, Ten- nessee, lamottenii and aepyptera are present in addition to meridionale. Several samples of meridionale were obtained from the Mobile Basin to which the Alabama and Tombigbee rivers belong. From the Alabama River sys- tem meridionale has been collected in Geor- gia and Alabama. Specimens have also been obtained from the Tombigbee River in Alabama. The distribution of meridionale corres- ponds to that of 16 other freshwater species of Alabama, which Smith-Vaniz (1968) con- cluded probably originated in the Tennessee River system, whence they invaded the headwaters of the Alabama River system and Tombigbee River. Figure 1 Enlarged photographs of the head and tail regions of Lethenteron meridionale, holotype, Tag W667, &, total length 104 mm, from Tennessee. 15 Figure 2 Enlarged photographs of two nonparasitic lam- preys. Upper: Lethenteron meridionale, Tag W667, holotype, &, total length 104 mm, from Tennessee. Lower: Lampetra aepyptera, Tag W548, & , total length 99 mm, from Alabama. 16 Figure 3 Enlarged photograph of the disc of Lethenteron meridionale, holotype, Tag W667, o”, total length 104 mm, from Tennessee. 17 Figure 4 Enlarged photograph of the disc of Lethenteron lamottenii, Tag W681, o, total length 162 mm, from Gatineau River, Quebec, collected on 17 May 1958, by M. Corbeil and A. Lutz. 18 ‘ZN7 “VW puke 1184109 ‘W Aq ‘8S6L Aew ZL uO p9}99/[09 ‘2eqenD “JaAly neesunedy wos ‘Www 291 uiBue] 1eJ0} ‘ © ‘LgoM Gey ‘ueyowe, uole} -U9y197 JO UolBei jez ay} jo yde1Boyoud pebiejuy G oinbi4 19 Figure 6 Enlarged photograph of the disc of Lampetra aepyptera, Tag W572, o’, total length 93 mm, from Alabama. Note: The pinning of the disc for photography caused a certain distortion on the left side of the photograph. Hence, three small supplementary marginal teeth, which could be mistaken for posterial teeth, are brought closer to the infraoral lamina. 20 Table 1 Body proportions (as percentages of total length) of 55 males of Lethenteron meridionale from Tennessee, Alabama, and Georgia TL d-B: B;-B; B--a a-C hD, 0 d d Tag No. (mm) TL TL TL TL TL HE TL B;-B; Tennessee W673 96 12.5 9.9 45.8 31.8 5.2 2.1 5.2 52.6 W634 97 12.4 10.3 45.9 31.4 5.2 2.1 6.2 60.0 W618 98 12.8 9.7 48.5 29.1 4.6 2.0 5.1 52.6 W670 98 12.8 9.7 45.4 32.1 5.1 2.0 5.6 57.9 W633 101 11.4 9.9 48.5 29.7 5.0 2.0 5.4 55.0 W667* 104 12.1 10.6 46.6 30.8 5.3 1.9 6.3 59.1 W615 105 12.9 11.4 44.3 31.0 4.8 1.9 6.2 54.2 W631 105 12.4 10.5 46.7 30.5 4.8 1.9 6.3 59.1 W645 105 11.9 10.0 48.6 29.5 5.2 1.9 5.7 57.1 W635 105 12.4 11.0 46.2 30.5 4.8 1.9 5.7 57.1 W632 108 12.5 9.7 46.3 31.5 5.6 1.9 6.5 66.7 W643 109 12.4 10.6 47.7 29.4 5.0 1.8 5.5 52.2 W668 109 11.0 10.6 49.1 29.4 4.6 1.8 5.5 52.2 W629 110 12.3 10.5 46.4 30.9 5.5 1.8 5.0 47.8 W639 110 12.7 10.0 47.3 30.0 5.5 1.8 5.5 54.5 W637 111 10.8 10.8 47.7 30.6 5.4 1.8 5.4 50.5 W644 111 12.2 10.8 45.0 32.0 5.4 1.8 5.4 50.5 W613 112 12.1 10.7 45.5 31.7 5.4 1.8 5.4 50.0 W660 112 12.9 10.7 45.5 30.8 4.9 1.8 5.8 54.2 W671 112 121 9.8 47.3 30.8 4.9 1.8 5.8 59.1 W648 113 12.4 9.7 46.9 31.0 5.3 1.8 5.3 54.5 W661 113 11.9 11.1 46.0 31.0 4.4 1.8 6.2 56.0 W666 113 11.5 9.7 49.6 30.1 49 1.8 5.8 59.1 W657 114 11.8 10.5 47.4 30.3 4.8 1.8 5.7 54.2 W674 114 11.8 9.6 47.8 30.7 4.8 1.8 5.7 59.1 W646 115 11.7 9.1 47.8 31.3 5.2 1:7 5.7 61.9 W659 115 12.2 9.6 48.3 30.0 4.8 17 6.1 63.6 W658 115 11.3 10.0 48.3 30.4 5.2 17 5.2 52.2 W612 116 11.2 9.9 47.0 31.5 3.4 07 4.7 47.8 W619 116 12.1 9.9 45.7 32.3 5.6 17 5.2 52.2 W630 116 12.5 10.3 48.7 28.4 5.2 17 5.6 54.2 W638 117 12.0 10.3 43.6 34.2 5.1 1.7 5.6 54.2 W649 117 12.0 10.3 45.3 32.5 4.7 17 4.7 45.8 W665 117 12.0 9.8 48.3 29.9 4.7 47 5.6 56.5 W642 119 11.8 10.1 46.2 31.9 5.0 17 5.5 54.2 W647 119 11.3 10.1 46.2 31.9 5.0 17 5.5 54.2 W672 120 12.1 10.0 46.7 31.3 5.0 1.7 5.4 54.2 W636 122 12.3 tia 45.9 30.3 4.9 1.6 5.3 48.1 W616 124 121 10.5 47.6 29.8 5.2 2.0 6.5 61.5 W640 124 11.7 10.9 45.6 31.9 4.4 1.6 5.2 48.1 Table 1 age d-B: B,-B; Ba a-C hD: 0 d d Tag No. (mm) Wt ae TL ae TL WL TL B:-B; W656 124 Aer 9.3 45.2 33.9 5.6 1.6 5.6 60.7 W641 126 11.9 10.3 47.6 30.1 4.4 1.6 5.6 53.8 W655 126 11.5 9.5 47.2 31.7 5.2 1.6 5.2 54.2 W676 132 10.2 9.8 52,7 27.3 3.0 1.5 4.5 46.2 W677 136 11.0 9.9 50.4 28.7 3.7 1.5 4.8 48.1 Mean 112.8 12.0 10.2 47.0 31.0 5.0 1.8 5.5 54.7 Alabama W533 116 11.2 9.5 50.7 30.2 3.9 124 4.3 45.5 W581 116 12.1 10.3 50.0 27.6 - 1.8 5.2 50.0 W583 116 1122 9.5 50.0 29.3 - 17 6.0 63.6 W582 117 11.5 9.8 49.6 29.1 - 2.1 5.6 56.5 W555 118 11.4 10.2 50.0 28.4 3.0 ln 4.2 41.7 W554 122 11.1 10.2 50.8 27.9 3.7 1.6 4.9 48.0 W558 131 10.3 9.2 51.9 28.6 3.1 1.5 4.2 45.8 Mean 119.4 11.3 9.8 50.4 28.7 3.4 etl 4.9 50.2 Georgia W596 103 12.1 lee, 45.1 31.2 4.9 1.9 5.0 47.8 W598 110 11.8 10.5 49.5 28.6 4.5 1.8 52 50.5 W597 123 11.8 10.2 45.5 32.5 SA 1.6 DA 56.0 Mean 112.0 11.9 10.6 46.7 30.8 5.0 1.8 5.2 50.5 Combined Mean 114.7 ul 10.2 48.0 30.2 4.5 1.8 5.2 515 *Holotype 22 Table 2 Body proportions (as percentages of total length) of 24 females of Lethenteron meridionale from Tennessee and Alabama TL Tag No. (mm) W650 96 W620 99 W621 100 W662 105 W626 107 W627 108 W622 109 W623 109 W669 109 W625 dti W652 111 W628 113 W651 114 W624 115 W653 116 W663 116 W664 116 W654 118 W617 119 W675 141 Mean 111.6 W553 119 W543 121 W556 122 W557 125 Mean 121.8 Combined Mean 116.7 d-B, Bi-B Ba a-C hD; 0 TL TL ie TE TL TE. Tennessee 13.0 10.4 50.5 26.0 4.7 2.1 12.1 10.6 50.5 26.8 5.1 2.0 12.0 10.0 51.0 27.0 5.0 2.0 11.4 11.4 50.0 27.1 4.3 1.9 10.7 10.3 52.3 26.6 4.2 1.9 10.6 10.2 52.8 26.4 4.6 1.9 11.0 9.6 50.9 28.4 4.6 1.8 ies) 10.6 50.0 28.0 4.6 176 11.5 10.6 51.8 26.1 4.7 1.8 10.8 9.5 52.3 27.5 4.5 1.8 wales) 9.9 BATA 27.6 4.7 127 11.1 9.3 51.8 27.9 4.4 1.8 10.5 10.1 51.8 28.1 4.4 1.8 10.9 9.6 51.3 28.3 4.3 17 10.8 9.9 51.7 27.6 4.7 let 11.2 112. 49.6 28.0 4.7 5 IEA 10.3 9.5 51.7 28.4 3.9 127 11.4 11.4 50.0 27.1 4.3 1.9 10.1 10.1 49.6 30.3 3.4 ei, 7.8 10.3 53.9 28.0 2.5 1.4 11.0 10.2 Sis 27.6 4.4 1.8 Alabama 10.5 9.7 51:3 28.6 2.9 1.7 9.1 9.9 537 PATES) 2.9 atl 10.7 10.2 49.2 29.9 3.3 1.6 10.8 9.6 52.0 27.6 3.2 1.6 10.3 9.8 51.5 28.3 Oat 1% 10.7 10.0 51.4 28.0 3.8 174 B;-B; Table 3 Body proportions (as percentages of total length) of 23 males and 12 females of Lampetra aepyptera from Tennessee and Alabama Tag No. 5072 (VDV) 5073 (VDV) 5075 (VDV) 5071 (VDV) 5074 (VDV) 5076 (VDV) Mean W517 W548 W549 W524 W539 W540 W530 W550 W528 W526 W531 W551 W578 W579 W546 W522 W580 Mean Combined Mean 5070 (VDV) 5069 (VDV) Mean we (mm) 121 134 135 142 142 145 136.5 91 99 99 101 107 109 110 111 112 112 115 118 119 122 123 124 128 110.1 117.0 140 151 145.5 95 97 99 102 103 d-B; TL 11.6 11-9 11.9 11.6 12.0 10.3 11.4 10.9 11.2 Uist, 11.3 12.6 10.8 9.2 B,-B, TL 10.1 10.2 B--a wit Males Tennessee 50.4 50.4 48.5 48.9 50.0 49.7 49.7 Alabama 48.4 47.5 48.5 46.5 48.1 48.6 49.1 50.5 47.8 49.6 50.0 48.7 48.3 48.4 49.2 47.2 47.7 48.6 49.2 Females Tennessee 53.2 54.3 a-C ho: ME 6.0 5.5 ND = a a oS ON œ o _ [Ce] B,-B; Table 3 TL d-B, B.-B; B-a a-G hD; We d Tag No. (mm) ie TL Tite TL TL TL TE W523 106 11.3 9.9 51.4 27.4 4.7 1.9 4.7 W541 107 10.7 10.3 50.9 28.0 33 1.4 5.1 W542 111 10.4 10.4 50.9 28.4 3.6 1.8 4.5 W547 112 10.3 10.3 50.4 29.0 3.6 1.8 4.9 W537 118 9.3 9.3 50.8 30.5 3.0 1.7 3.8 Mean 105.4 10.7 10.0 50.8 28.6 4.0 1.8 4.9 Combined Mean 112.1 11.0 10.2 52.3 28.4 4.9 1.8 5.1 25 0°SS-6 0ÿ £'0S L'29—9'2c GLY 9°€9-GS'SP £'9g L99-L LY GES 19—'q p S0e-e22 E+S-0'0S vec Es £‘0E-092 6 '€S-z'6r 0°8z ÿ'LS yle-e'8z g'OS-5'9 9°62 z'6+ GEE-C/Z L'eS—9'EP z'0€ 0'8r 71 LL 9-28 eg vVOlL-6'8 AU VLL-€'6 0'0t oc LL-€'6 € Ob VLL-L'6 co OL aL ‘q—'g 9°¢l-2'6 OLE O'EL-8"2 l'OL VEL-EOL Lek 6 ¢cl-c OL Zt LSI-G6 L'LL ch Lv L—96 L'Art ve SvlL—-L6 OCLL £c 9€ 1-96 ZLYVLL gs (ww) suawioeds ail 40 ‘ON e1a]dAdee ‘7 9/EU0IpIIOU ‘7 elajdAdae ‘7 2/EU0IpIISU ‘7 saiseds eee £-L Se|gqeL uo peseq ‘esajdAdee eyedwe7 pue ejeuoipriowu uoiejueyje7 jo (u1Bue] [2101 jo sebejuaoied se) suoruodoid Apoq 26 e1aAe JO UOSIUedWOD ÿ SIGeL ee eeSSSS———SsesSsS 26 0‘ÿG L L QL LE SL 9L 9 I L ZL cvl—-96 210} pauiquiog 0'”S oS te = L L L Pad T € €cl—-OLL l10L oes = SS = = L NÉE SLT L eck 9961 “ABW 7 uoyeq ‘Bulidg peweuun 0'¢S Ss. = = = = L ae L LoL 9961 JEW ÿ leueA ‘yo-un1 Buds O'S = ait = L = = Pa L OLL 9961 JEN ÿ Buuds enig (eBeuleip JaAly eweqe]y) e161089 AT ONE REC € v - - - - LL LEL-OLL JE}OL 0'SS = = À L L - - - = € ZLL-OLL €96L “JEW SL esoojeosn| 1POU ‘19 0'‘rS - - - - L = — = = L OLL 9961 ‘Bny 1€ Bulids 18JemMp109 O'rS - - - - L - - - - L LZL 996L ‘uef pa ‘19 enig LSS bE =e zZ L - = - = 9 LEL-8LL £96L ‘29 SG ‘19 uoluuIg (sebeuresp JeAu eweqge|y pue seqhiquio,) eweqely ges = L eb 8 £L GE G 2 L £9 cvl—-96 JB}O] Buds Ges = = = = L L = = = (4 vcl-GOL 896L JPW 8c 19}SeUOuIM “JO poweuuy £'GG = = A = L = = = = € CVIL-LEL é ‘19 Buds 0¢S = = = = = = L = = L SLL 896L ABW 8c 19 SUE9HinH oes = = = = L L L = = € 6LL-86 896L q91 € ‘19 AsjueH L'EG = = L L € A = & L OL 921-96 896L “Ged € ‘qu} ‘19 Aejpeig 6€ = L G 9 G 8 cA € = 0€ 91-26 896L “G84 € ‘19 Aejpeig Lys = = & L L & L = = Z ZLL-vOL 8961 “G84 € ‘19 sBulids enig evs = = € = L L = L = 9 02lL-96 896L “484 7 19 S,uesg (eBeureip 18A1H eosseuue]) sesseuual ues eg 24S 9S SS +S EG 2G IS OS Suewlseds (ww) sosowoAw jo Jaquinn Jo JaquINN ALL ejeq A12207 ‘peuiquoo sexes ‘e161099 pue ‘eweqeiy ‘28SSauU2] WOsJ 2/EU0IpIIeW UO018]uU2y]27 PEaWIOJSUEI} JO Se18WOAW UNI} JO JOQUNN G eIqeL 27 g'vs L L & S S SL € CA = L Se LSL-L6 [201 peuiquoyg 9°rS LE SON TN G RE TC | Le 8cL-L6 feJoL ‘09 ejepiepne 02S = St ea ae a gS 4 90L-LOL 196L ‘IN 62 ‘Buluds peweuun ÿ96L ‘UEP ZL G'pS SEC le a £cL-60L 2961 “Ady L ‘19 Apues unos Ors 69S ee MST L OLL 996L “G84 Sz ‘4 Aesdis oes ee — L G6 996L JEW 62 ‘19 Z}Inys 09S = | L SLL £96L “Ge4 2 ‘19 eBbpugejod 8961 JEW 0€ 0'9S = =) = 6. = = = SiS e- md bal-cLL G96L ‘dy € ‘H MON CLS Soe Se = E = nn 4 £cL-cOL 6961 ‘uef GZ ‘19 SseidA9 a/ppin 0'ES = = = = SF Seb = = = L 66 1961 ‘IPN € ‘19 SsaidA9 an 19S ee EU ne € £OL-L6 9G6L “JEW 22 ‘19 euedluny eS = Soe TS Ee = = a) £ SZL-6LL OZ6L ABW L ‘19 Aeino O'S SSeS SF SS Se L ZOL 196L ‘IEN G Buds eaeg 09S | oe | ee =, e LLL-ZOL €96L YEW SL 19 SOU 0'GG = A See eee SR S 8LL-66 +96L “JEW 8 Buids Apues Big 0‘9G = = = = = = = = = L ZLL Q96L “JEW ZL ‘19 181829g (seBbeuleip Jeu eweqe]y pue ‘eeqBiquo] ‘eesseuus]) eweqely trs ee — L L 9 age PARENTS LE 8 LGI-ICE é "y Jaye Bulle (eBeureip 1eAIH oesseuue]) sesseuuer UEON 6S 8S 2G 9G GG S$ EG cG IS OS suawloeds (ww) 9}eq Ayje207 saiawohky Jo sequiny Jo Joquny AL ——— eee ‘PeuIquo9 sexes ‘eweqeiy pue sessouue| WO eJajdAdae esjadwe7 jo SuawIdads pewsojsued} JO Se18WOÂW HUNI} JO JeQUNN 9 eIqeL —_—_—— — — …]]] 28 ‘U199} [PISJUE LZ Sey UdWIDeds auO,, ‘adAjojoy ul yjee} jPHejUE pe , SI-G 06 8c = 0 LE Le—c 62 LE ueayy pauiquo) cl-G 78 Le = 0 £c **xPL—C Ls £c ewegely SI-6 Lol L = 0 8 GIE GL 8 aesseuus] elajdAdae esjadwe7 €1-9 66 19 bc-OL vst 9€ ve-S LOL [072 ues) peulquoT OL-8 0'6 & 9E=EE Gel 4 ve-St ele € 2161085 Liz s'8 8 GIE € € vI-G 6 OL 6 BWeQe|V €l-9 LOL ZS Le—OL 6'GL LE +vE-L Z9OL 8S sessouusl a/eUuOIPIaW UO18}U2y}27 eBbuey ueayy suawioeds ebuey UEON] suawioeds ebuey UPS suawioeds a}e]S JO ‘ON JO ‘ON JO ‘ON sdsno jes0esjul JO ‘ON 4}99} Jela}SOd jo ‘ON U}99} [EHO}UE JO ‘ON ‘peuiquo9 sexes ‘2161089 pue ‘eweqeiy ‘aessouue| O1} esaydÂdee eijadwe7] pue ajeuoiplieu uolaj]uayj2e7 JO SOSIP eu} UO ‘sdsno jeloeljuI pue ‘Yy}99} [eH1esod pue [elajJue JO 18QUNN 231921 29 Table 8 Number of inner lateral teeth, combined for both sides of disc, in Lethenteron meridionale and Lampetra aepyptera from Tennessee, Alabama, and Georgia;* sexes combined. No. of Number of inner lateral teeth Species specimens 0 1 2 3 4 5 6 7 8 Mean L. meridionale 77 3 2 2 = 3 2 61 2 2 5.5 9.92% 2:6 2:6 ~ 3.9 2.6 79.2 2.6 2:6 1000 L. aepyptera 31 - 2 2 4 3 8 12 - - 4.6 - Gist = 76:5) NC PCR - 100.0 * From Georgia we have three specimens of L. meridionale and none of L. aepyptera. **Figures in this line are percentages. Table 9 Frequency of occurrence of cusps on inner lateral teeth in Lethenteron meridionale and Lampetra aepyptera from Tennessee, Alabama, and Georgia;* sexes combined. L. meridionale L. aepyptera Inner lateral No. of Mean Mean teeth cusps % no. of cusps % no. of cusps Anterior 1 91.7 1.1 63.9 1.4 2 8.3 36.1 Middle 1 73.5 1.3 33.3 12 2 26.5 61.1 3 - 5.6 Posterior 1 84.8 dee 85.1 sl 2 1912 14.9 Supplementary 1 100.0 1.0 - - posterior *From Georgia we have three specimens of L. meridionale and none of L. aepyptera. = eg KT = L zZ o'0s o'0s . ÿ v = - = 0‘0€ = : € sZt ep 6e 8 62 €z Buoys 9}219POUI YE9M ul} jepneg 002 L £'9 v juasqe £'8 0'Sc L € G28 Paci 2 L ose Sls 9} LE Buoys ajeispou v'8s 0°06 6 xo Lb LE yeam juasqe ul} [eSIOp puo2es OL v9 suawioeds 40 ‘ON “soPejus91od aie aul) Siu} ul Sain6l4, ewegely eassouudl ela}dAdae ‘7 eweqely sessouud] O/EUOIPIIaW “7 9}e1S saloads ‘eWeqe|Y pue sessouue| Woi] elajdAdae e1edwe7 pue ajeuospliaw Uo18]u24/}97 JO SUIJ [Ppne2 pue [ES10p puo9es au} JO uonyejuewuBid y12q OL 8IqeL 31 nn 000 Table 11 Detailed comparison of Lethenteron meridionale with Lampetra aepyptera, based on Tables 1-9. Numbers in italics refer to means, and ranges (in parentheses), for each character. Character L. meridionale L. aepyptera Similarities Supraoral lamina Marginals All lingual laminae Number of myomeres Number of velar tentacles Buccal cavity Tongue Dark pigmentation of second dorsal and caudal fins Body proportions, except length of disc and height of second dorsal fin Total length (mm), sexes combined Differences Posterial teeth Anterial teeth (type) Anterial teeth (number) Total number of inner lateral teeth Middle lateral tooth Infraoral lamina and number of cusps Number of oral papillae Length of disc as percentage of TL Height of second dorsal fin as percentage of TL Number of eggs and their diameter Length of female with two cusps, one at each end in a double row typically with obsolete cusps 54.0 (50-58) 3 pigmented nonpigmented quite similar similar 96-141 present small, uniform, but numerous 16.1 (7-34) 5.5 (0-8) typically with one cusp cusps degenerate 9.9 (6-13) 14.2 (8-25) male: 5.2 (4.2-6.5) female: 4.8 (2.8-5.7) male: 4.5 (3.0-5.7) female: 3.8 (2.5-5.1) 2,154 (0.6 mm) 122 mm with two cusps, one at each end in a double row typically with obsolete cusps 54.5 (50-59) typically 3 pigmented nonpigmented quite similar similar 91-151 absent small, uniform, but few 8.1 (2-21) 4.6 (1-6) typically with 2 cusps cusps degenerate 15.8 (10-24) male: 5.8 (4.3-6.7) female: 5.1 (3.8-5.6) male: 5.0 (3.3-7.0) female: 4.9 (3.0-6.0) 1,543 (0.8 mm) 118 mm Table 12 Comparison of two nonparasitic species of Lethenteron from Tennessee. Numbersinitalics refer to means, and ranges (in parentheses), for each character. Character Anterial teeth Number of posterial teeth Total number of inner lateral teeth cusps on inner lateral teeth Infraoral lamina and number of cusps Marginal teeth All lingual laminae Transverse lingual lamina Number of myomeres Number of velar tentacles Buccal cavity Dark pigmentation of second dorsal fin Total length (mm) L. meridionale L. lamottenii uniform in size 15.9 (10-21) 515 (0-8) all typically with one cusp cusps degenerate 10.1 (6-13) in two rows with cusps typically obsolete middle cusp not enlarged 53.8 (50-58) 3 pigmented several vertical narrow spots 96-141 of two sizes: large near supraoral lamina and smaller towards marginals 21.5 (20-23) 6.0 (6) all bicuspid cusps prominent 9.5 (9-10) in one row with cusps well developed middle cusp enlarged 68.0 (68) 7 nonpigmented dark-brown tint without distinct spots 153-162 Appendix Complete data for the collections of Lethenteron meridionale and Lampetra aepyptera used in this study appear in the following sequence: ES Tag number. Small white plastic tags (15 mm long by 5 mm wide) of two series were used. Series a: On one side of the tag is the letter W, followed by a number; on the other side “Canada” is written. Series b: On one side there is only a number, and on the other the letters VDV, the initials of the senior author, appear. Number of specimens Sex (in transformed specimens) Total length Localities in each river system (presented al- phabetically) Date of collection Collector Repository institution abbreviated as follows: ASUMZ Arkansas State University Museum of Zoology, State University, Arkansas AU Auburn University, Auburn, Alabama O1 B © D OND CBL Chesapeake Biological Laboratory, Solomons, Maryland EKU Eastern Kentucky University, Museum of Fishes, Richmond, Kentucky INHS Illinois Natural History Survey, Urbana, Illinois NMC National Museum of Natural Sciences, National Museums of Canada, Ottawa TTU Tennessee Technological University, Cookeville, Tennessee UAIC University of Alabama Ichthyological Collection, University, Alabama 9 Catalogue number of repository institution Lethenteron meridionale Holotype and Topotypic Paratypes W662-66 and 668 (392, 105-16 mm; 3%, 109- 17 mm); collected with holotype, W667 (now NMC 74-249); Blue Springs Creek, a tributary of the Tennessee River, near Hillsboro, Coffee County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2830. Other Paratypes Tennessee: Tennessee River system W669-74 (one®, 109 mm; 5, 96-120 mm); Bean’s Creek, 2 miles southeast of Hillsboro at Stephenson, Coffee County; 4 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2837. W620-49 (92 , 99-115 mm; 219, 97-126 mm); Bradley Creek at Hillsboro, Coffee County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2831. W650-61 (59, 96-118 mm; 7c”, 112-26 mm); unnamed spring, tributary of Bradley Creek at Hillsboro, Coffee County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2832. 34 W612 (ones, 116 mm); Elk River at Elk Head, Grundy County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2835. W617-19 (one®, 119 mm; 207, 98-116 mm); Henly Creek, 2.1 miles southeast of Pelham, Grundy County; 3 February 1968; J.S. Jandebeur and J.D. Williams; UAIC 2834. W613 (ones, 112 mm); Hurricane Creek, at Awalt, Franklin County; 28 March 1968; J.S. Jandebeur and J.D. Williams; UAIC 2866. W675-77 (one®, 141 mm; 207, 132-36 mm), W978 (one ammocoete, 142 mm); Spring Creek, Putnam County; date and collector unknown; TTU. W615-16 (25, 105-24 mm); unnamed creek, 2 miles southwest of Winchester Spring, Franklin County; 28 March 1968; J.S. Jandebeur and J.D. Williams; UAIC 2864. Alabama: Tombigbee River system W553-58 (32, 119-25 mm; 307, 118-31 mm), W552 (one ammocoete, 100 mm); spring tributary of Binnion Creek, Samantha, Tuscaloosa County; 5 December 1963; J.D. Williams and W.M. Howell; UAIC 1091. W543 (oneQ, 121 mm); Blue Creek about 1% miles north of Vina, Frankline County; 24 January 1966; B. Wall and H.T. Boschung; UAIC 1837. W533 (ones, 116 mm); Coldwater Spring, 5.7 miles west of Oxford, Calhoun County; 31 August 1966; J.D. Williams, J.G. Armstrong, and B.R. Wall; UAIC 2349. W581-83 (30, 116-17 mm); first creek south of Tuscaloosa on Alabama highway 69, Tusca- loosa County; 15 March 1963; A.B. Stapp and J. Barnes; UAIC 991. Georgia: Alabama River system W598 (one, 110 mm); Blue Spring, 0.55 miles north of Varnell, Whitfield County; 4 March 1966; R.D. Caldwell and W.M. Howell; UAIC 1868. W596 (ones, 113 mm); spring west of U.S. highway 41, 6.8 miles south of Dalton, Whitfield County; 4 March 1966; R.D. Caldwell and W.M. Howell; UAIC 1873. W597 (oneo’, 123 mm); spring pond run-off, Y% mile north of Varnell, Whitfield County; 4 March 1966; R.D. Caldwell and W.M. Howell; UAIC 1871. Lampetra aepyptera Alabama: Alabama, Tennessee, and Tombigbee River systems W526 (one, 112 mm); Beaver Creek, 4.4 miles northwest of Aliceville, Pickens County; 12 March 1966; R.D. Caldwell and H.T. Boschung; UAIC 1892. W902 (one ammocoete, 80 mm); Big Reedy Creek, tributary to Alabama River, 1.6 miles north of Choctaw Bluff, Clarke County; 8 April 1972; J.R. Ramsey and W.L. Shelton; AU 6268. W547-51 (one®, 112 mm; 4, 99-118 mm); Big Sandy Spring, Tuscaloosa County; 8 March Appendix 1964; R.D. Caldwell and J.C. Hall; UAIC 1225. W541-42 (29, 107-11 mm); tributary to Car- roll’s Creek, 5 miles north of Tuscaloosa, Tus- caloosa County; 15 March 1963; J.D. Williams and W.M. Howell; UAIC 1837. W539 (ones, 107 mm); Cave Spring, 1% miles east of junction of Morgan County; 5 March 1967; J.G. Armstrong and J.D. Williams; UAIC 1982. W578-80 (37, 119-28 mm); Gurley Creek, on U.S. route 79 near Blout-Jefferson County line, Jefferson County; 1 March 1970; Lee Barclay and Vickie Barclay; UAIC 3342. W517-19 (22, 97-103 mm, onec, 91 mm); branch of Hurricane Creek at Alberta City, Tus- caloosa County; 22 March 1956; W. Herndon and J. Zambernard; UAIC 796. W572 (one? , 93 mm); Hurricane Creek, Tus- caloosa, Tuscaloosa County; 23 March 1956; L.B. Cooper; UAIC 711. W523-24 (oneQ, 106 mm; onec’, 101 mm); unnamed spring, Lauderdale County; 23 March 1967; J. Armstrong and T. Jandebeur; UAIC 1991. W529 (one2, 99 mm); Little Cypress Creek, %> mile west of Zip City, Lauderdale County; 23 March 1967; B.R. Wall, H. Harima, and J.F. Thompson; UAIC 2509. W531-32 (one?, 102 mm; one, 115 mm); tributary of Middle Cypress Creek at Bethel Berry Church, Lauderdale County; 29 January 1969; Wall, Harima, and Mettee; UAIC 3240. W522 (ones, 124 mm); New River below U.S. highway 278 at Natural Bridge, Marion County; 30 March 1968; Caldwell, Wall and Barclay; UAIC 2885. W528 (onec’, 112 mm); New River below U.S. highway 278 at Natural Bridge, Marion County; 3 April 1965; J.D. Williams, D. Caldwell, and W.M. Howell; UAIC 1593. W537 (one®, 118 mm); Polebridge Creek, 11 miles north of Tuscaloosa, Tuscaloosa County; 2 February 1963; J.D.W. and W.M. Howell; UAIC 1161. W544 (one2, 95 mm); Schultz Creek, 4 miles north of Centerville, Bibb County; 29 March 1966; W.M. Howell; UAIC 1903. W896-900 (5 ammocoetes, 66-125 mm); Seven Springs, tributary to Choccolocco Creek, 1.3 miles north-northeast of Choccolocco, Calhoun County; 11 September 1971; J.E. McCaleb and L.L. Ram- sey; AU 4819. W530 (onec’, 110 mm); tributary of Sipsey River, 2 miles south of Fayette, Tuscaloosa County; 25 February 1966; R.D. Caldwell and Bill Shamblen; UAIC 1863. W540 (one, 109 mm); South Sandy Creek, Talladega National Forest, Bibb County; 1 April 1962; T.H. Walker, R.B. Phillips, and B. Hepner; UAIC 882. W546 (ones, 123 mm); South Sandy Creek, Tuscaloosa County; 17 January 1964; R.D. Cald- well and W.M. Howell; UAIC 1112. W892-95 (4 ammocoetes, 98-132 mm); Town Creek, tributary to Cotaco Creek near Somerville, Morgan County; 12 July 1966; G.R. Hooper; UAIC 1848 and UAIC 1873. Arkansas: Mississippi River system W742 (one, 110 mm); Piney Creek, Izard County; 17 February 1973; W.J. and R.S. Matthews and G.L. Harp; ASUMZ 1878. W740-41 (29, 110-12 mm); Saddle Mill Pond branch, South Folk River, Fulton County; 27 Jan- uary 1973; G.L. Harp; ASUMZ. Kentucky: upper Mississippi River system W2316 (oneo’, 150 mm); Clear Creek, 2 miles southeast of Disputanta, Rockcastle County; 20 March 1966; Steve Stacy; EKU 168. W607 (onec’, 143 mm); creek, 6 miles south of Fairdale, Bullitt County; 7 April 1968; R.T. Schaaf; INHS. W609-10 (2c, 121-36 mm); creek one mile west of Means, Montgomery County; 12 April 1968; P.W. and D.M. Smith; INHS. W747-49 (3 ammocoetes, 62-67 mm); north fork of Rough River, Breckinridge County; 18 April 1970; Branson and Class; EKU 421. W608 (one? , 140 mm); Walters Creek, 4 miles north of Magnolia, Larue County; 28 March 1964; M.E. Braasch and P.W. Smith; INHS. Maryland: Chesapeake Bay basin W1104-08 (one®, 92 mm; 4, 100-12 mm);trib- utary of Battle Creek, 5 miles southwest of Prince Frederick, Calvert County; 4 April 1964; Brooke Kaine; CBL 2266. W1101 (one®, 128 mm); below Uriebille Pond, Kent County; 14 November 1958; J. Longwell; CBL 1969. Ohio: Ohio River system W588-89 (one® , 113 mm; onec’, 135 mm); Crane Hollow, Ohio River, Hocking County; 20 April 1967; Andrew White; UAIC 2846. W587 (oneco’, 123 mm); Laurelville; 17 April 1969; Andrew White; UAIC 4504 . Tennessee: Tennessee River system 5069-76 (VDV), (22, 140-51 mm; 69, 121-45 mm); Falling Water River, 7%2 miles southeast of Cookeville, Putnam County; date and collector unknown; TTU. 35 References Cited Abbott, C.C. (1860). Descriptions of new species of American freshwater fishes. Proc. Acad. Nat. Sci. Phila. 1860: 325-28. American Fisheries Society, Committee on Names of Fishes (1970). A list of common and scientific names of fishes from the United States and Canada, 3rd ed., by Reeve M. Bailey, et al. Am. Fish. Soc. Spec. Publ. no. 6. 150 pp. Brigham, W.U. (1973). Nest construction of the lamprey, Lam- petra aepyptera. Copeia 1973: 135-36. Creaser, C.W., and C.L. Hubbs (1922). A revision of the Holarctic lampreys. Occas. Pap. Mus. Zool. Univ. Mich. 120. 14 pp. Kott, Edward (1974). A morphometric and meristic study of a population of the American brook lamprey, Le- thenteron lamottei (Le Sueur), from Ontario. Can. J. Zool. 52: 1047-55. Le Sueur, C.A. (1927). American ichthyology, or natural history of the fishes of North America. New Harmony, Ind. 6 pp. Manion, P.J., and H.A. Purvis (1970). Giant American brook lampreys, Lampetra lamottei, in the upper Great Lakes. J. Fish. Res. Board Can. 28: 616-20. Raney, E.C. (1952). A new lamprey, Ichthyomyzon hubbsi, from the upper Tennessee River system. Copeia 1952: 93-99. Scott, W.B., and E.J. Crossman (1973). Freshwater fishes of Canada. Fish. Res. Board Can. Bull 184. 966 pp. Seversmith, H.F. (1953). Distribution, morphology and life history of Lampetra aepyptera, a brook lamprey, in Mary- land. Copeia 1953: 225-32. Smith-Vaniz, W.F. (1968). Freshwater fishes of Alabama. Auburn University, Agricultural Experiment Station, Au- burn, Ala. 211 pp. Trautman, M.B. (1957). The fishes of Ohio. Ohio State University Press, Columbus. 683 pp. 36 Viadykov, V.D. (1949). Quebec lampreys (Petromyzonidae). 1, List of species and their economic importance. Contrib. Dep. Fish., Quebec, no. 26, 67 pp. (1950). Larvae of eastern American lampreys (Petromyzonidae). 1, Species with two dorsal fins. Nat. can. 77: 73-95. (1973). Lampetra pacifica, a new nonparasitic species of lamprey (Petromyzontidae from Ore- gon and California. J. Fish. Res. Board Can. 30: 205-13. (1974). Request for a ruling on the stem of family-group names based on the type-genus Petromyzon Linnaeus, 1758. Z.N. (S.) 2045. Bull Zool. Nomencl. 30: 198-99. Viadykov, V.D., and W.I. Follett (1965). Lampetra richardsoni, a new nonparasitic species of lamprey (Petromyzonidae) from western North America. J. Fish. Res. Board Can. 22: 139- 58. (1967). The teeth of lampreys (Petromyzonidae): their terminology and use in a key to the Holarctic genera. J. Fish. Res. Board Can. 24: 1067-75.