C0TT1D.E. 271 



vomer, but none on the palate ; pectoral fins broad ; the 

 lower rays simple ; dorsal fins generally two, either se- 

 parated or united at their base ; gill membrane six-rayed, 



Hemitripterus Cuv. Habit of Synanchia, in the 

 head, eyes, and pectoral fins ; but the mouth is ob- 

 liquely horizontal, and the dorsal fin is divided into 

 three portions; the first falcate, or triangular; the 

 two others equal ; head depressed, with numerous 

 sharp tubercles and fleshy palmated cirri ; ventral fin 

 very small, of only one spinal, and three soft, rays ; 

 anal lengthened ; caudal truncate ; palate furnished 

 with small teeth. 

 H. Americanus. Cuv. pi. 84. GriflP. Cuv. pi. 53. £ 3. 



CoTTUs Linn. Body entirely naked ; dorsal fins two, 



distinct ; preopercule armed with spines. 



gobio. Bl. pi. 3 9. Yarr.i. 56. Scorpius. Bl. pi. 40. Klen. 

 diceraus.Til. Mos. Tr. pi. 13. Miss. iv. pi. 13. f. 2. 



Enophrys Sw. Nape of the head contracted ; spines 

 few ; orbits much elevated, and surrounded with a 

 bony lobe or plate, rendering the fore part of the 

 head club-shaped ; dorsals distinct ; ventral fins short, 

 of three rays ; body naked ; caudal rounded. 

 E. claviger. Cuv. and Val. pi. 79. fig. 2. 



Gymnocaxthus Sw. Resembling in general aspect the 

 last, but there are no upper orbits ; spines of the 

 head few, and naked ; ventral fins very long, and of 

 three rays ; dorsals distinct ; the rays of the first 

 naked on their terminal half (?) ; caudal fin truncate, 

 G. ventralis. Cuv. and Val. iv. pi. 79. fig. 1. 



Hemilepidotus Cuv. Body with a few longitudinal 

 bands of small scales under the common skin, the 

 interstices of which are naked ; dorsal fins more or 

 less united at their base ; ventrals of three rays, 

 nearly as long as the pectorals. 



H. Tilesii.* Cuv. and Val. iv. 276. pi. 87. 



* The species figured by Tilesius, which M. Cuvier quotes as the same as 



