PISCES. 177 



Note. Here also would seem to be the place for a new genus from 

 the Indian Sea near Celebes, Labracinus Mus. L. B. of which I 

 think the description may be expected from Dr SCHLEGEL. 



Genus Polycentrus MUELL., TROSCH. is unknown to mej is this 

 its place 1 ? Rays of branchiostegous membrane six. Operculum 

 armed with a spine. Prseoperculum and first infraorbital bone 

 denticulate. Anal fin with numerous spines. Caudal fin ! \ 



Sp. Polycentrus Schoniburgldi M. and TR. ; habit, in West Indies, Essequebo. 

 See R. SCHOMBURGK Reisen in Britsch Guiana, in. Leipzig. 1848, p. 622. 



Note. In the preceding genera the caudal fin is rounded ; but 

 in the following genera of this phalanx it is almost always lunate 

 or forked. 



Latilus Cuv. Head declivous. Teeth small, arranged in seve- 

 ral rows in jaws. Branchiostegous membrane with six rays. Dorsal 

 fin long, low, with somewhat few (6 or 7) flexile spines. 



Sp. Latilus doliatus Cuv., VAL., Poiss. v. PI. 130, &c. 



Pteronemus nob. (Cheilodactylus LAC.). Teeth small or seta- 

 ceous, arranged in several rows, sometimes conical in external row. 

 Branchiostegous membrane with five or six rays. Inferior rays of 

 pectoral fins longer, not remote, articulate. Ventral fins placed a 

 little behind pectoral, almost abdominal. 



Sp. Pteronemus cynadus, Cheilodactylus fasciatus LAC., Cyncedus GRONOV. 

 Zoophyl. p. 64, No. 221, LAC. Poiss. v. PL i. fig. i, from the Cape of 

 Good Hope (and from the East Indies ?) Pteronemus zonatus, Cheilodactylus 

 zonatm Cuv. et VALENC. Poiss. v. PL 129, Faun. Jap., Pise. Tab. 29. 

 Here the dorsal fin, which in the preceding species was almost of uniform 

 height, is very low in front of the soft rays, and then becomes higher. In 

 a South American species, Cheilodactylus cinctus, figured by V. TSCHUDI, 

 this is still more remarkably the case, and V. TSCHUDI even speaks here of 

 two dorsal fins. Fauna Peruana, St Gallen, 1844, 4to, Fische, Tab. n. 



Scolopsides Cuv. Teeth in jaws subulate, very thin, crowded 

 in a narrow row. Praeoperculum denticulate. Branchiostegous 

 membrane with five rays. Two suborbital spines, one directed 

 backwards, decussating the other directed forwards. 



Sp. Scolopsides lycogenis Cuv., Cov. d VAL. Poiss. v. PI. 127; Scolopsides 

 Vosmeri Cuv., An'thias Vosmaeri BLOCH, Ichth. Tab. 321, Dictionn. univ. 

 d'Hist. not. Poiss. PL 6, fig. 2, and other species from the Indian Sea. 

 Some species occur also in the Bed Sea. 

 VOL. II. 12 





