20 



EED-FINNED SILUHE. 



Silums Erythropterus. riifus, subtus argaiteus, pinnis ruhn». 

 Rufous SilurCj with silvery abdomen, and red fins. 

 Silurus erythropterus. S, pinna adiposa caudoeque longa. Bloeh^ 

 t.36g.f.2. 



FIabit similar to that of S. quadrimaculatus, but 

 of a longer shape : length seven or eight inches : 

 beards eight in number, viz. two pair above and 

 two below ; the lowest pair of those on the upper 

 lip extending nearly to the middle of the tail, which 

 is long, very deeply and sharply forked, and, like 

 the rest of the fins, of a red colour : first ray of the 

 dorsal and pectoral fms very strong and serrated : 

 second or adipose dorsal fm broad and shallow : 

 body marked by transverse streaks as in the 

 quadrimaculatus. Native of South America. 



FROG SILURE. 



Silurus Batrachus. S, elongatus fyscus, pinna dorsali moUi a 



nucha fere ad caudam continuata^ 

 Elongated, brown Silure, with soft dorsal fin continued from 



the neck almost to the tail. 

 Silurus Batrachus. S. pinna dorsali iinica, radiis sexagintaj^ 



cirris ocfo. Lin. Sj/st. Nat, p. 502. 

 Silurus Batrachus. S. pinna ani dorsiqiie longa. Block, t, 37G. 



Length eight or ten inches : habit long, as in 

 some of the Blennies; and the divisions of th^ 

 muscles visible on the sides in the form of so many 



