18-i CLASSIFICATION OP FISHES^ ETC. 



CoMEPHORUs. Dorsal fins two ; pectorals very long ; ventrals 



• wanting. 

 RuppELiA. Dorsal fins two ; ventrals united (?) ; head thick, 

 cirrated ; mouth vertical, -f- 



FamilyS. BATRACHID.E. 



Head broad, ciliated; ventrals two rayed; pectorals not pe- 

 dunculated. 



Batrachus. Body with minute scales ; dorsal fins two. 

 Amfhichthys. Body naked ; dorsal fin single. 



Family 4. CHIRID^. 

 Body perch-like, compressed, with several lateral lines. 

 Chirus. Pectorals broad at the base ; ventrals of five rays. 



Family 5. ZOARCHID^. 



Anguilliform; all the rays soft ; dorsal, caudal, and anal united. 



ZoARCHUs. Ventral fins minute, nearly obsolete. 

 Anarrhichas. Teeth large and strong ; ventrals wanting. 



Order II. MALACOPTERYGES. 



Dorsal fins supported by soft, articulated, and branched rays. 



Family 1. SALMONID^. 



Scales and fins naked, not covered with the common skin. 



1 . Sub-familv Cyprix^. — Dorsal fin sinsrle. 



* No teeth. 



Cyprixus. Lips fleshy, simple ; anterior dorsal rays spined. 



Cyprinus. Dorsal (;gntral, the anterior spines serrated; anal short; 



jaws equal. 

 Barbus. Dorsal central, spines serrated or smooth ; mouth furnished 



with cirri. 

 Labiobarbus. Lips excessively thick, the lower one pendant, the 



upper with cirri. 

 Sabnostonia. Jaws equal ; mouth large ; dorsal fin near the caudaL 



t This singular type, now first named, is of the chironectlform structure. 

 It seems a Goby in the disguise of Uranoscopus, and to be the repre- 

 sentative of all such vertical-mouthed fishes. This and Comep/iorus 

 appear to be types of sub-families. 



