PERCIDiE. HOLOCRNTRIN^. 207 



caudal truncate; scales with their margins strongly- 

 toothed j teeth rather strongs sharp, even. 



C. spinosus. Spix and Agass. pi. 75. 



Myripristis Cuv. No prominent spine on the preoper- 

 ciile^and only one or two small ones on the operculum ; 

 eyes excessively large ; scales as in Corniger ; hoth 

 profiles of the head and body equally curved ; mouth 

 sub- vertical ; lower jaw longest ; caudal fin forked. 



M. Japonicus. Cuv. pi. 58. melanophrys Sw.* RUpp. i. 



pi. 23. fig. 2. 



Beryx Cuv. Dorsal fin single, placed in the middle of 

 the back, the rays of all the fins slender ; caudal 

 very large and forked ; ventral fins nearly equal to 

 the pectorals, and often of ten rays ; operculum and 

 preoperculum crenated, but the spines very small or 

 wanting. 



B. lineatus. Cuv. pi. 60. 



Hoplostethus Cuv. General shape of Trachichthys, but 

 the head is marked by numerous bony ridges instead 

 of spines, and the scales are smaller and more regular, 

 as in ordinary fishes; dorsal fin single, low, with six 

 spinal rays, followed by others which are branched ; 

 caudal fin divided to the base into two oval lobes ; 

 pectoral large, oval ; head without scales ; inter- 

 operculum with a short spine ; belly serrated ; lateral 

 line smooth ; mouth vertical ; lower jaw longest ; 

 eyes very large. 



H. Mediterraneus. Cuv. and Val. pi. 97. bis. 



Trachichthys. Body short, oval, covered with ex- 

 cessively hard irregular plates instead of imbricate 

 scales ; head large, obtuse ; mouth very wide, almost 

 vertical; the lower jaw longest. 



Trachichthys Shaw. Body mailed with large rough 

 plates, which form a spined ridge on the belly and 

 lateral line ; operculum and nape of the head with 



* M. Murdjan RUpp. 



