PERCID^. HELOTIN^. 209 



Pelates Cuv. Somewhat resembling Datnia^ but the 

 body is more lengthened^ and the base of the fins 

 are not scaly ; all the teeth even _; opercule spines 

 small ; preopercule crenated ; caudal lunate ; dorsal 

 and anal spines moderate j fore part of the head and 

 crown naked. 



P. quadrilineatus P. Cuv. 55. 



Helotes Cuv. {jig. 4>7.) Body 

 fusiform; snout obtuse; ('VA 

 mouth very small; outer 

 teeth trilobate ; preopercule 

 crenated ; opercule with 

 small prickles ; caudal lu- 

 nate : representing Boops. 



Helotes sex-lineatus. Cuv. Val. 56. 



DuLES. Operculum spines small ; all the teeth simple 

 and equal ; eyes very large ; pectoral small ; ventral 

 larger than the pectoral^ and placed beneath it; 

 caudal large^ deeply forked ; branchial membrane 

 six-rayed; dorsal fin deeply emarginate in the middle: 

 representing Apogon } 

 marginatus. Cuv. Val. 52. rupestris. GrifF. Cuv. 7. 2. 



CiHRHiTES Commerson. Body short, broad, resembling 

 Pomotis in shape ; mouth small ; lower jaw, shortest ; 

 several canine teeth mixed with the others ; pectorals 

 large^ round ; the lower rays simple, thick, length- 

 ened, and partly free ; ventrals behind the pectoral ; 

 anal and dorsal spines very strong. 



C. fasciatus. Cuv. Val. pi. 47. 



Pomotis Cuv. Body broadly oval, compressed ; dorsal fin 

 sHghtly emarginate, the hinder part and the anal with 

 a sheath of scales at their base, the spines of these 

 fins moderate ; an elongated membrane or flap at the 

 angle of the operculum ; caudal fin lobed ; ventrals 

 under the pectoral, with a pointed basal scale. 



P. vulgaris. Cuv. pi. 49. 

 VOL. II. P 



