256 FISHES. 



In Tauridea, the prickles are much less numerous, 

 but are longer and stiffer. The coloration and form of 

 the body are essentially the same in Cottopsis and Pota- 

 mocottus, in Tauridea, quite different. Perhaps these 

 three genera should all rather be considered as sub- 

 generic sections of Uranidea. 



3. TRIG LOPS IS, Girard. LAKE SCULPINS. 



= Ptyonotus, Giinther. 



1. T. ihompsoni, Grd. DEEP WATER LAKE SCULPIN. 

 Body elongate; depth 7 in total length; head 3; eyes 

 very large, 4 in head; D. VI 18; A. 15. Great Lakes 

 (L. Ontario, L. Michigan) in deep water; till lately 

 known only from remains found in the stomachs of Lake 

 Trout and Ling. 



2. T. stimpsoni, Gill. Mss. A species bearing the 

 above name inhabits the deep waters of Lake Michigan. 

 It is hoped that some one may obtain it, in order that 

 a description may be published. 



FAMILY XCVL GOBIIDJ3. 



(The Gobies.) 



Body elongated, low, naked or scaly; dorsals two, 

 sometimes united, the spines flexible and less developed 

 than the soft rays; anal similar to soft dorsal ; ventrals 

 1, 5 (rarely 1, 4), sometimes united, forming a disk; gill 

 openings narrow; teeth generally small; a prominent 

 papilla near the vent, as in the Blennies; air bladder 

 usually wanting; no pyloric appendages. Genera thirty; 

 species three hundred and twenty-five. Of the seas of 

 temperate and tropical regions, found on the bottoms 

 near the shore. A few species inhabit both salt and 

 fresh water. 

 * Body naked; ventrals united. . . . GOBIOSOMA, 1. 



