106 CONTRIBUTIONS TO NORTH AMERICAN ICUTHYOLOGV— III. 



Tbc case is precisely liko that of the ^eimsof Doves, Leptoptila Sv/aintiuu, lately uataed 

 JEchmoptila by Dr. Coues, ou account of the previous Leptoptilua of Lessou." — (Jokdak, 

 Bull. r. X. fiml. Surv. Terr, vol iv, No. 2, p. 418, ld78.) 



ANALYSIS OF SPECIES OF QUA8SILAUIA. 



•Head short, couieal, with lengtheued suout, the regiou between the eyes flattened 

 and with prominent mucous ridges : cheeks and lower part of head rather swollen: 

 openle much reduced, its greatest length scarcely greater than the diameter of the 

 eye : head about 4J in length : eye 4J- in length of head, about 2 in length of the snout, 

 its situation thus quite posterior; length of the top of the head Ig in thi- distance 

 from the snout to the base of the dorsal. Body rather slender, the form being 

 between that of Myxostoma cervinum and M. macrolepidotum, the depth 4f in the length. 

 Dorsal tin rather low ; its rays I, 12; A. I, 7; V. 9. Scales 5-4!>-5. Color olive or 

 bluish-brown nbove; sides and belly silvery ; lower fins faintly orange. ..laceka, 1. 



1. QUASSILABIA LACERA Jordan d; Brayton. 

 Hare-lip Sucker. S2}lit-mouth Sucker. May Sucker of the Scioto. Cut-lips. 

 1877 — Lagocltila lacera Jordan & Brayton, Proc. Ac. Nat. So. Phila. 280, 1877. 

 Latfochila lacera Jokdan, Man. Vert. ed. 2d, oil, 1878. 

 Quunsilabia lacera Jordan, Man. Vert. ed. 2d, 406, 1878. 

 Quasisilabia lacera Jordan, Bull. U. S. Geol. Surv. Terr. 418, 1878. 

 Habitat. — Tennessee River. Scioto River. 



Only three si)eciinens of this isiiijinUir SiuUer are yet known. Two of 

 tliese were taken by Tiofessor Brayton and myself in the Chiekainauga 

 Kiver at Ringj?old, Catoosa County, Georgia, and the other iu Elk Kiver 

 near Estill Springs, Tennessee. In both these streams, the species was 

 well known to the fishermen, who s;iid that it is one of the mo.st abun- 

 dant s])ecies in those waters, and one of the most highly valued for food. 

 In the Chickamauga, it is known as the Harelip or Split-mouth Sucker 

 None of the specimens taken wi-ic mature, the largest being but ten 

 inches long, so that its maximum size cannot be given. 



Since the above was written, a line large specimen has been sent to me 

 by J. U. Klippart, Es(|., of the Ohio Fish Commission. It was taken in 

 Scioto Iliver near Columbus, in April, 1878. Mr. Klippart inlorms me 

 that the species is well known to the Scioto fishermen, who call it May 

 Sucker, as it runs up the river in May. That so strongly marked a spe- 

 cies has so long escaped the attention of ichthyologists in the State of 

 Ohio is singular. 



SpecimcuH in United Staler Xalioual ilu^eum. 



Numl)er 



Locality. , Collector. 



« 



Cbickainangn River 



D. S. Jordan. 



