107(a). COTTID.E — URANIDEA. G93 



**Skin uakecl, smooth. 



1052. I. *iiiiciiiatus (Reinh.) Kroyer. 



Olivaceous, mottled and barred with darker, above aud on fins. Head 

 broad; lower jaw included f i)alatiue teeth well developed; maxillary 

 extending to opposite middle of pupil. Eyes very large, separated by 

 41 narrow ridge; occiput with two blunt ridges, in front of which the 

 vertex is concave; upjier preopercular spine large, strongly hooked 

 upward, more than half length of eye; downward-directed spine on pre- 

 opercle long and sharp ; skin perfectly smooth. Pectorals reaching front 

 of anal; spinous dorsal rather high; vent midway between snout and 

 middle of caudal. Head 3; depth 4|. D. VlII-13; A. 11. L. 4 inches. 

 Cape Cod to Greenland, in deep water; abundant. 



(Cottns uncinatun Reinh. Vid. Se.lsk. Natur. og Math. Afhaiull. 1833, 44: Centrklerm- 

 ichthys uucinatus Giinther, ii, 172: leelua tincmatus Kroyer, Natnrh. Tidsskr. 1844, '253.) 



1053. I. (?) bicornis (Reinh.) J. & G. 



Occiput with two acute i)oints ; four preopercular spines, the upper- 

 most of which is bifurcate. Skin not described. D. VIII-15; A. 14. 

 Greenland. ( Giinther. ) 



(Coftus bicornis Reinh. Videiisk. Selsk. Natur. og Math. Afh. viii,lxxsv: Cetitriderm- 

 ichtliys bicornis Giinther, ii, 172.) 



366.— URANIDEA Dekay. 



Miller^s Thiimhs. 



{Cottns aud Cottopsis Girard.) 



(Dekay, New York Fanna, Fish., 1842, 61: type Uranidea quiescens Dekay = Co/f«« 

 gracilis Heckel.) 



Fresh-water sculpins. Body fusiform. Head feebly armed, the pre- 

 opercular spines covered by the skin; skin smooth or very nearly 

 so; villiform teeth on jaws and vomer, none on palatines. Gill- 

 openings separated by a wide isthmus, over whicti the membranes do 

 not form a fold; no slit behind fourth gill. Branchiostegals 6. Dorsals 

 nearly or quite separate, the first of 6-9 slender spines; ventral s I, 3, 

 or I, 4. Fishes of small size, inhabiting clear waters in the northern 

 parts of Europe, Asia, and America. The species are extremely nu- 



* This species should form the type of a distinct genus if the current genera of this 

 group are to be recognized. The .Japaueso genus Centridermichthtjs Rich, to which 

 this species and many others of our Cottoids have heen reforrcd, iliffers from /. iinci- 

 nalus in having the slit behind the last gill developed, aud the gill-membrunos fully 

 united to the isthmus. 



