104. GORIID.E — GOBIUS. 633 



Lot very blunt. Jaws eveu. ]MoutIi somewhat oblique; maxillary ex- 

 tending- to opposite the pupil; isthmus very wide. Dorsals well sepa- 

 rated, the second somewhat longer than the first; anal short, inserted 

 behind front of second dorsal; ventrals not reaching to veut; pectorals 

 broad and rounded, reaxdiing vent; dorsal spines not filiform. Head 

 3i; depth about tt. 1). VI-U ; A. 11; Lat. 1. 30. Saint Joseph's Island, 

 Tex. {Giranl.) 

 (Gobius catiUus Girard, U. S. Mex. Boiiud. Siirv. Iclitli. 1859, 26.) 



343.— EUCTEI^(D>«OBIUS Gill. 

 (Gill, Anu. Lye. Nat. Hist. N. Y. vii, 45, 18.59: typo J'JucfoiotjohiuH badiits Gill.) 



This genus differs from Gobius in the dentition, the teeth being 

 pointed, in a single series in the upper jaw and in a very narrow band 

 in the lower. (r5, well; zr^t?, comb; GohiuH; from the ctenoid scales.) 



9§3. E. Sya-acsBS (Grd.) J. dc G. 



Brownish, obstnirely barred with darker. Body oblong-elongate, 

 tapering slightly from occiput to caudal peduncle. Head oblong, com- 

 pressed. Snout very blunt; jjrofile in front of eyes nearly vertical, 

 IMouth moderate, nearly horizontal; maxillaiy reaching beyond middle 

 of orbit. Teeth conical, rather strong, in two rows in front' of lower 

 jaw, in one on the side, and in one in the upper jaw. Fins all high; 

 middle rays of spinous dorsal produced; caudal lanceolate; pectoral 

 reaching bej'ond tips of ventrals, which reach the vent. Head 4.^ in 

 length; depth about 4i;. D. VI-11 ; A. 11; Lat 1. 32. Eio Grande. 



{Gobius hjricus Girard, Pioc. Acad. Nat. .Sci. Phila. 1858, 169: Gobiux lyrkufi Giiutlier, 

 iii, 550.) 



344.— CrOBIUS Linuajus. 



Gohies. 



(Artedi; Linnoius, Syst. Nat.: typo G<>biu>i nvjer Jj.) 



Body oblong or elongate, compressed behind. Head oblong, more or 



less depressed. Eyes high, anterior, close together; oixuvles unarmed. 



Mouth moderate. Teeth on jaws only, conical, in several series, those in 



the outer row enlarged; no canines; isthmus broad. Scales moderate, 



ctenoid; cheeks usually naked; belly generally scaly. Dorsal usually 



with C spines; pe(;i()rals large; ventrals completely united, not adnate 



to the belly; caudal fin usually obtuse. Species very numerous. Our 



species are very little known, and some of them may not belong to this 



genus. (za>/5:w?; Latin, Go/><?/.s- or (/oft/o, a name applied to the gudgeon 



{Gobio JtuviatiUti) and to other small fishes; allied to Cobitis, chub, etc.) 



*liody entiirly scaly. 



a. Upper rays of pectorals partly free, finely branched, silk-like. 



