Jordan and Evcrmann. — Fishes of North America. 1953 



the cariuated hack and ahniptly contracted hody, forming the suhteiete 

 caudal peduncle. The prickles of the skin are coarser than in anj^ other 

 species. (Nelson.) Length of type 2g inches. Great Lakes, the 2 type 

 specimens from Lake Michigan, near Evanston, Illinois, in rather deep 

 water; remains of others occur among Girard's types of Tr'ujlops'is tliomp- 

 8oni from Lake Ontario. The group Tauridea, of which this species is 

 type, may be worthy of generic rank. (Named for its discoverer, Mr. F. L. 

 Eice, then a student in zoology in Northwestern University at Evanston.) 



GoUus rice!. Nelson, Bull. IUs, Mus. jSTat. Hist., Vol. i, No. 1, 40, 1876, Lake Michigan, at 



Evanston (Coll. F. L. Rice). 

 Uranidea spilota, Jordan & Gilbert, Synopsis, 094; not of Cope. 

 Uranidea ricei, Jordan & Gilbert, Synopsis, 953. 



Subgenus COTTUS. 



2823. COTTUS OMCHUS, Eigeniuann & Eigenmann. 



Head 3|; depth 51. D. VIII, 17; A. 13; V. I, 4; P. 13; eye 1^ in snout, 

 I in iuterorbital, 5 in head. Teeth on vomer, none on palatines. Width 

 of head equaling its length to end of preopercular spine, its dejjth 2 in 

 length. Preopercle with an upturned claw-like spine, below which are 2 

 others, much smaller, the anterior one having its point turned downward 

 and forward. Maxillary not reaching orbit; lateral line complete. Sides 

 above lateral line, with stiff prickles from below hrst spine to below last 

 dorsal ray; prickles below lateral line confined to the abdominal part of 

 the sides. Dorsal connected by a low membrane, the rays much higher than 

 the spines, 31 in head. Pectoral reaching past vent, its rays not branched. 

 A dusky spot on bx-east ju.st behind anterior end of gill slits; ventral siir- 

 face including the ventrals otherwise plain; anal with a few dusky specks 

 on its rays ; other fins barred ; sides and upper surfaces olive with darker 

 spots; 3 dark bands below soft dorsal; a dark band just in front of 

 caudal. Length about 3i inches. Saskatchawan Basin. This species is 

 evidently closely related to CoUhs polHcaris, from which it differs chiefly 

 in having many prickles. (Eigenmann.) Not seen by us and perhaps not 

 different from Cottus jyoUieans. {ovvxoi, clawed.) 



Gottus onychus, Eigenmann & Eigenmann, Am. Nat., Nov., 1892, 963, Bow River, at Cal- 

 gary, a tributary of the South Saskatchawan, Alberta Territory. (Coll. C. H. 

 Eigenmann.) 



2324. COTTUS POLLICARIS (Jordan & Gilbert). 



Head 3^ in length to base of caudal; depth 4f; eye 5^ in head. D. 

 YII, 19; A. 13; V. I, 4; P. 17. Lateral line complete. Body robust; nape 

 prominent, the profile of head steeply declined, thence to tip of snout in a 

 straight or slightly concave line; head much depressed, broad and flat 

 above, evenly narrowed forward to the broad, much depressed, bluntlj^ 

 rounded snout ; eyes small, with extensive vertical range, their diameter 

 less than snout or the flat iuterorbital width; mouth rather small, 

 anterior, with but lit^o lateral cleft, maxillary reaching vertical from front 

 of orbit; teeth villifonu on jaws and vomer, none on palatines; preoper- 



