1. CANXnAETTS. . 413 



Si/nopsis of the Genera. 

 * Cheeks and opercles scaly ; vertical fins without scales. 



A band of cardiform teeth in front of both jaws, the 

 outer series containing teeth, wliich are slightly 

 compressed and lanceolate 1. Cantiiarus. 



A single series of trenchant, notched teeth in both 

 jaws, without a band of other teeth behind 2. Box. 



A single series of broad lanceolate teeth in both jaws, 



without any other teeth behind 3. Scatiiarus. 



A single series of broad, trenchant teeth in both jaws, 

 with granular teeth behind and pointed ones on 

 the side 4. Oblata. 



One or two series of broad, trenchant teeth, and with 

 a band of granulated teeth behind ; no pointed 

 lateral teeth 5. Crenidbns. 



** Cheeks and opercles scaly ; vertical fins more or less 

 covered with scales. 



A series of broad lanceolate teeth in both jaws, with 

 a band of similar teeth behind, wliich are less de- 

 veloped. Eleven dorsal spines 6. Pachymetopon. 



Dorsal fin deeply notched. Ten dorsal spines 7. Dipterodon. 



A recumbent spine before the dorsal fin 8. Proteracanthus. 



*** Cheeks scaly, opercles naked. 



Scales moderate ; fourteen or fifteen dorsal spines. . . 9. Girella. 



Scales moderate ; twelve dorsal spines 10. Doydi.xodon. 



Scales small 11. Tephr.eops. 



*♦** Cheeks naked. 



Scales moderate 12. Gy-mn-ocrotaphus. 



1. CANTHARUS*. 



Cantharus, Ciw. R^gne Anim. ; Cuv. 4* Val. vi. p. 318. 



Teeth cardifoi-m or vnUiform, those of the outer row slightly com- 

 pressed and lanceolate f ; no molar teeth. Cheeks scaly. The dorsal 

 spines (ten or eleven) can be received into a scaly sheath ; three 

 anal spines. Scales moderate. Six branchiostegals. Pyloric ap- 

 pendages in small number. Air-bladder vrith two horns posteriorly. 



Mediterranean ; from the coasts of Great Britain round the Cape 

 to the Seychelles. 



1 . Cantharus lineatus. 



? KavOapos, Aristot. viii. cap. 13. 



Canthaiiis, i?o;«/<'/. v. cap. 4. p. 120; Gesner, p. 178; Aldrov. ii. cap. 20. 

 p. 186 ; WilliHjhhy, p. 309 ; Ray, p. 130. 



* 1. Cantharus senegalensis, Cuv. ^- Val. vi. p. 337. — Cape Yerde. 



t Tliis is very conspicuous in mature specimens, and has been overlooked by 

 Cuvier. Therefore I separate these fishes from the Pris/ipoynatida; and do not 

 think that the Indian species are to be referred to this genus. 



