252 Bulletin 4J, United States National Museum. 



character indepeiulently developed. (/coY/lof, shell; yvdQor, Jaws; the 

 covering of the jaw being hard, like shell.) 



o. Scales nioilorato, about 40 in tlio lateral lino. oknata, .'iPG. 



<xa. Scales large, about 34 in lateral lino. mauTTATA, ,3!)7. 



396. rOCHIiOGNATHUS OUNATA, Baird & Giranl. 



Head 4 ; depth 4^. D. 8 ; A. 6 ; lateral line 40 ; teeth 4-4. Appear- 

 ance, dorsal fin, and coloration much as in Pimephales notatus or Cliola 

 rif/ilax. Body moderately elongate. Head rather long. Dorsal tin over 

 the ventrals, rather high; anal fin quite small ; caudal fin short. Dorsal 

 fin with a black spot near the base in front and a dusky blotch behind ; 

 caudal fin with a dusky median band, in front and behind which is a 

 pale area; a dusky lateral band. Snout tuberculate in spring males, as 

 in Pimephales. Length 3 inches. Rio Grande. A singular little fish, 

 with the mouth resembling that of Chondrostoma or Acrocheilus, but the 

 structure otherwise diflerent from either, (ornatus, adorned.) 



Cochlogiiathus oruiihis, Baiud it Giuard, Proc. Ac. Nat. Sci. Phila., 1854, 158, Brownsville, 

 Texas; Giinther, Cat., vii, 187, 1868; Jordan & Gildf.rt, Synopsis, IGl, 1883. 



397. COCHLOGXATHITS BIGUTTATA, Cope. 



Head 5 in length, with the caudal fin ; depth a little less. Eye large, 

 3| in head, a little less than muzzle and than interorbital space. D. 8; 

 A. 7; scales 7-34-°? Form of FiDiepJialcs notatus. Head ol)long and 

 rather wide above. Muzzle decurved in protile; mouth terminal. Head 

 wide behind and flat above. Maxillary not ([uite reaching line of orbit. 

 Ventral fins inserted opposite second or third dorsal ray, reaching to 

 vent; anal fin small. Pectorals reaching three-fifths to ventrals. Color 

 silvery, without dark markings, except a black spot at the base of the 

 caudal and on the anterior rays of the dorsal. Length 2^ inches. 

 Trinity River, Texas. Very close to the preceding, from which it may 

 perhaps differ in the larger scales. (Cope.) {hif/uttutns, two-spotted.) 



Cochlognathns higtiUata, Cope, Bull. U. S. Nat. Mus., xvir, 1880, 37, Trinity River, Fort 

 ■Worth, Texas. (Coll. Cope.) Jordan & Gilbert, Synopsis, IGl, 1883. 



122, CLIOLA, Girard. 



Cera<ic7(?;(j(s,* Baird & Girard, Proc. Ac. Nat. Sci. Phila., 1853, 390; (name only ; no definition; 



applied to rigilax, which was not intended as type). 

 Cliola, Girard, Proc. Ac. Nat. Sci. Phila., IS.'iO, 132, {uigilm). 

 Hijpargijms, Forbes, Proc. U. S. Nat. Mus., 1884, 200, {tudilauns). 



Form and appearance of rimepludes, the same squamation, fin rays and 

 plan of coloration, and the first ray of the dorsal similarly separated by 

 membrane, the structure of the mouth similar, but with the intestinal 

 canal short, shorter than body, the peritoneum pale and the teeth more 

 hooked, as in JSotropis. The single species bears a striking resemblance to 

 rimephales notatus, but is distinguishable by the more contrasted coloration 

 and by the generic characters which ally it, with Cochlogiiathus, to the 

 carnivorous species called Noiropis. The genus is certainly very near 

 Pimephales although in its technical characters it approaches nearer to 

 Ifotropis. (A coined name, without meaning, first applied to a railway 

 station in Illinois.) 



*Wedonot use the name Ccralichlhys for this genus, Ijecause no explanation of its use was 

 Riven in the paper when it first appeared. It was at that time a MS. uame of Professor Baird 

 for the group typified by Hybopsis kentuckiensis, and to this group C. fi'g'iia.c was wrongly referred. 



