442 FISHES. ACANTHOPTERYGII. 



Gen. 18. GOBIOIDES, Lacepede Gobius, Lin. 



Body elongated ; head small ; ventral fins thoracic and united ; 

 one dorsal fin. 



G. Broussonetii, Cuv. Body very long, much compressed, with 

 transparent skin; pectoral fins small; rays of the dorsal and anal 

 fins projecting ; tail lanceolate. Indian seas. Shaw, iv. 236. 



Gen. 19. T^NIOIDES, Lacep. Gobius, Lin. 



Body much elongated and compressed ; upper lip with cirri ; 

 pectoral fins in the form of a disc, and composed of many 

 rays ; eyes scarcely perceptible ; no caudal fin. 



T. Hermanii, Lacep. (Cepola c&cula, Schn.) Dorsal fin commen- 

 cing near the head, and running to the extremity of the tail ; three 

 or four cirri at the mouth Shaw, iv. pi. 26. 



Gen. 20. PERIOPHTHALMUS, Schn. Gobius, Pall. 

 Head covered with scales ; eyes approximated, with an eyelid 

 at their inferior margin ; pectoral fins covered with scales 

 more than half their length ; ventral fins more or less united ; 

 branchial openings narrow. 



The species of this genus are able to live for some time out of the water, and are 

 often seen crawling on the mud to avoid their enemies or to procure food. 



P. Schlosseri, Cuv. Body dusky above, covered with coriaceous 

 rounded scales ; head longish, much broader than the body ; eyes 

 protuberant ; ventral fins forming a concave disk. 6 to 8 inches 

 long. Inhabits fresh waters in India. Shaw, iv. 246. 



P. Kolreuteri, Cuv. Body grayish white, with the ventral fins at- 

 tached to a kind of fleshy arm or process, and separated almost 

 to their base ; lateral line as if compressed ; upper jaw with a 

 tooth on each side larger than the rest. About a span long. 

 Shaw, iv. 251. 



Gen. 21. ELEOTRIS, Cuv. Gobius, Gmel. 

 First dorsal fin with flexible rays ; an appendage behind the 

 anus ; thoracic ventrals perfectly distinct ; head obtuse, 

 slightly depressed ; eyes separated ; branchial membrane 

 with six rays. 



E. Pisonis, Cuv. Under jaw longer than the upper ; ventral fins 

 separate ; tail rounded. Waters of Brazil Shaw, iv. 252. 



E. strigatus, Cuv. Body compressed, elongated, of a greenish blue 

 on the back, white beneath, with brown and reddish lines and 

 spots ; fins greenish, varied with red and yellow ; scales square ; 

 upper jaw longest ; tail rounded. Inhabits Southern ocean. 

 Shaw, iv. 249. 



Gen. 22. SILLAGO, Cuv. 



Shout slightly elongated, with a protractile mouth, and fleshy 

 lips; teeth small, crowded, with a larger row exteriorly; 



