178 CLASS XIV. 



Heterognatliodon Bleeker. Suborbital bones smootli, witliout 

 any spine. Jaws witli setaceous teeth in many rows, and a few 

 anterior large, conical (canines). Other characters those of the pre- 

 ceding genus. 



Sp. Heterognatliodon hifasciatus, Scolopsides caninus CuvJ and two new 

 species from the Indian Ocean, Compare Verh. van het. Batav. Genootsch. 

 XXIII. 1849. 



Pristipoma nob. Teeth subulate, thin, numerous, in several 

 rows, larger in outer row. Prseoperculum denticulate. Branchioste- 

 gous membrane with seven rays. Pharyngeal teeth conical, strong. 

 Pores under lower jaw. 



Hcemulon Cuv. Scales in the soft part of dorsal and anal, and 

 in the forked caudal fin. 



Sp. Pristipoma elegans, Anthias formosus Bloch, Ichth. Tab. 323, Cuv. B. Ani., 

 id. ill., Poiss. PI. 30, fig. I ; — Pristipoma formosum, Perca formosa L., 

 Lahrus Plumieri Lacep. Poiss. III. PL 2, fig. 2, and some other species 

 from the West Indies and Brasil. 



Pristipoma Cuv. Fins not scaly. Two pores under the apex of 

 lower jaw; a middle groove behind them, as in the preceding sub- 

 genus, from which it scarcely differs. Caudal fin mostly truncate 

 or lunate. 



Sp. Pristipoma Commersonii Gov., Lahrus Commersonii Lac, and Zidjanus 

 microstomus ejusd., Lacepede Poiss. iii. PI. 23, fig. i; PI. 34, fig. 2; at 

 Madagascar in the mouth of rivers ; — Pristipoma japonicum Gov., Schleg. 

 Faun. Japan., Pise. Tab. 26, fig. 2, and many other species from the 

 Indian Sea and some from the western hemisphere. 



Diagramma Cuv. Fins not scaly. Six pores under lower jaw. 



Sp. Pristipoma orientale, AritJiias orientalis Bloch, Ichthyol. Tab. 326, fig. 3, 

 Diagramma orientale Guv., Val. Poiss. v. PI. 124; a small fish from the 

 Indian Archipelago, marked black and yellow, with round caudal fin; 

 — Pristipoma piictum nob., Diagramma punctatum Ehrenb., Gov. (and 

 Diagramma pictum et cinereum sec. Bleeker), Bed, Indian and Japan 

 Seas; — Pristipoma plectorhynchum, Plectorhynchus chcetonoides Lac, 

 Poiss. 11. PI. 13, fig. 2, &c. 



Note. — Here also is to be inserted sub-genus Chilotrema Tschddi, Faun. 

 Peruan,, Ichth. p. 13, Tab. i. 



Phalanx II. Dorsal fins two, or dorsal fin single deeply incised 

 between the spines and the soft rays. 



a) Margin of j^rceoperculum entire. Ventral fins jugular ; soft 

 part of dorsal fin long. No cirri under jaio. 



