222 
Micronema typus Bleeker, Ichth. Arch. Ind. Prodr. I. Siluri, 1858, p. 300. — Atl. 
Ichth. II. 1862, p. 91. 
Cryplopterus micronema Giinther, Cat. Brit. Mus. V. 1864, p. 43. 
Micronema phalacronotus Fowler, Proc. Acad. Nat. Sci. Philadelphia, (2) LVII. 
1905, p- 469. 
B. 1415 ;°D. 089A. 586—-933) P12 14 Vo 
Elongate, dorsal profile slightly convex, sloping down to 
the broad flattened head. Lower jaw prominent. Height 5—5'J,, 
head about 57/,, eye 3'/,—5, about equal to snout, situated 
at some distance behind the corner of the mouth, its lower 
half below the level of the cleft of the mouth, more than 
twice in the convexity of the interorbital space. Maxillary 
barbels extending to the hindborder of the eye, those of the 
lower jaw much shorter than the eye. Anal free from caudal 
or connected with it. Ventrals longer than eye, pectorals shorter 
than head, osseous part of pectoral spine equal to snout and 
eye. Caudal deeply incised. Teeth in the jaws in a rather 
broad band; the rounded vomerine band occupies nearly the 
whole width of the palate. Gillrakers 14. Yellowish, a black 
spot in the middle of the base of the caudal. Finmembranes 
blackish. Length over 325 mm. 
Nomen indig.: Limpok (Mal. Batav.), Lais (Palembang). 
Habitat: Java (Batavia); Sumatra (Palembang!); Borneo 
(rivers Kahajan, Kapuas, Sambas Limbang and Baram). — Siam. 
In rivers. 
10. Cryptopterus hexapterus (Blkr.). 
Stlurus hexapterus Bleeker, Nat. Tijdschr. Ned. Indie II. 1851, p. 203. 
Micronema hexapterus Bleeker, Ichth. Arch. Ind. Prodr. I Siluri, 1858, p. 301. — 
Atl lchths Us 1s62. 5 pyome 
Cryptopterus hexapterus Giinther, Cat. Brit. Mus. V. 1864, p. 43. 
B. 12—13,; D.0;"A. 74-83: Plt 16-7 eee 
Elongate, sloping down to the snout with a concavity in 
the neck. Height 5°/,—5'/,, head 6'/,—7'/;, eye 5—6, situated 
behind the corner of the mouth and partly below the cleft 
of the mouth. Lower jaw strongly prominent. The maxillary 
and mandibulary barbels are sometimes shorter, sometimes 
rather longer than the head. Anal free from caudal or reaching 
to it. Ventrals more than twice as small as pectorals, which 
are rather longer than the head, the osseous part of their 
