324 



culuni and about 5 rows of scales on the operculum. Lateral 

 line with a gentle curve downwards at about the iQtb perforated 

 scale. Dorsal beginning scarcely behind origin of pectorals and 

 ending above end of anal. Its origin separated by 16 — 17 scales 

 from tip of snout. Origin of anal below 12th dorsal ray. Pec- 

 torals much shorter than postorbital part of head, about twice 

 in head. Ventrals originating behind origin of dorsal, less 

 than distance between hindborder of eye and hindborder of 

 praeoperculum. Colour of alcohol specimens of Bleeker's 

 collection brown, somewhat lighter below. Fins brown, more 

 or less variegated with darker. In younger specimens there 

 are three dark oblique streaks behind eye and a dark patch 

 on operculum. A lateral band, consisting of separate dark 

 patches, bordered by yellowish. Pectorals with some light spots. 

 Length 235 mm. [Specimens of Bleeker's collection in the 

 Amsterdam and British Museum seen by us]. 



Habitat: Banka, Borneo (Banjermasin, mouth and middle 

 course of river Kapuas, Danau Sriang). 



In rivers and ponds. 



8. Ophiocephalus pleurophthalmus Blkr. 



Ophicephalus plciirophthalinus Bleeker, Nat. Tijdschr. Ned. Indiii I. 1 850, p. 270. — 

 Act. Soc. Scient. Indo-Neerl. III. 1858, Zesde Bijdr. Sumatra, p. 37. 



Ophicephalus tirophthalmiis Bleeker, Nat. Tijdschr. Ned. Indie III. 1852, p. 578. 



Ophiocephalus pleiiroplitlialinus Giinther, Cat. Brit. Mus. III. 1859 — -1861, p. 479. 



Ophiocephalus pleurophthalmits Bleeker, Atl. ichth. IX. 1877, Tab. 397, fig. 3. — 

 Verh. Akad. Amsterdam, XIX. 1879, Poissons pharyng. labyr. p. 48. 



} Ophicephalus spirilalis Fowler, Journ. Acad. Nat. Sc. Philadelphia (2) XII, 

 1904, p. 530. 



M 



D. 40—43 ; A. 28—31 ; P. 17— 18 ; V. 6; L.l. 5/— 58 ; L.tr. J^. 



II 



Body cylindrical, somewhat compressed, more so posteriorly. 

 Height 4.5 to nearly 5, 5.5 to nearly 6 in length with caudal. 

 Head 2.8 — 3, 3.5 — 3.8 in length with caudal. Head compressed, 

 rather pointed, its upper profile straight, interorbital space 

 flat. Eye 5.5 to nearly 7, less than 1.5 to somewhat more 

 than 1.5 in the interorbital space and 1.3 — 1.5 in snout. Tip of 

 snout in the horizontal through middle of eye. Cleft of mouth 

 somewhat oblique. Maxillaries reaching below hindborder of 

 eye or not so far. Lower jaw prominent, much so in old 

 specimens. A band of about 4 rows of small teeth in the 

 intermaxillarics, those near the symphysis longer, especially in 



