PISCES. 195 



Sp. Thera^pon servus Cuv., Holocentrus servus Bloch, Ichtk. Tab. 238, fig. i, 

 Lacep. Puiss. III. PI. 30, fig. 3; — Therapon ][>uta Gueein, Iconogr., Poiss. 

 PI. 7, fig. I ; — Dules auriga Cuv., Cuv. et Val. Poiss. III. PI. 51, species 

 from the Red Sea, the Indian and South Pacific seas. 



Nandus Cuv. Teetli tliin, sliort, crowded in jaws, in vomer and 



palate-bones. Margin of prseoperculum and interoperculnm finely 



denticulate; operculum with a spine small or none. Rays of bran- 



chiostegous membrane six. Mouth protractile. Eyes large. Body 



high, compressed. Dorsal fin single, deeply incised in iront of soft 



rays. 



Sp. Nandus marmoratus Cuv. ct Val. Poiss. vii. PI. 207, from Bengal. 

 This fish almost agrees with the sub-genus Dides of the preceding genus, 

 but differs from it especially in the protractile snout. The genus Anoplus 

 ScHLEGEL may be also united with it. Sp. Nandus anoj^lus nob., Anoplus 

 SCHL. Faun. Japan., Pise. Tab. viii. 



PriacantJms Cuv. Teeth crowded, thin in jaws and palate- 

 bones. Angle of prsBoperculum produced into a denticulate spine. 

 Entire head and body covered with small scales. Branchiostegous 

 membrane with six rays. Eyes very large. Dorsal fin single, con- 

 tinuous, higher posteriorly. Ventral fins ample. 



Sp. Priacanthus macroi'>Mhalmus, Anthias maerophthalmus Bloch, Iclitli. 

 Tab. 319, from Brasil; — other species are from the Indian Sea, the Southern 

 Pacific, and especially from the east coast of Asia, as Priacanthus japonicus 

 Cuv., Val. Poiss. iii. PI. 50, Priacanthus niphonius Cuv., Val., Faun. 

 Jap., Pise. Tab. vii. a, &c. 



Ichthelts Rafin. Teeth crowded, thin in jaws ; palatine-teeth 

 sometimes none. Prreoperculum entire or slightly denticulate. 

 Branchiostegous membrane with six rays. Operculum and cheeks 

 scaly. Dorsal fin single. Body compressed, high. Tail thin, 

 short. 



Compare Cuvieb et Valenciennes Poiss. vii. pp. 454 — 469. To this 

 genus belong fresh-water fishes from Ameiica, especially from the northern 

 half of that part of the world. 



Sub-genus Pomotis Cuv. Teefcli in palate- bones and tongue none. 

 Prseoperculum denticulate. Operculum with, a membranous appen- 

 dage ear-shaped, rounded. Anal fin with three spines, or more 

 rarely with four. 



Sp. Pomotis vulgaris Cuv., Val. Poiss. in. PI. 49, R. Ani., ed. ill., Poiss. 

 PI. 10, fig. 3, &c. — Pomotis elongatus Holbeook, Jou/rnal of the Acad, of 

 Nat. Sc. of Philadelphia, Sec. Ser. in. 1855, PI. 5, fig. i, and two others. 



13—2 



