206 
ceases shortly before the caudal, which is deeply incised; its 
lobes pointed, the upper one the longer. Ventrals very short, 
below dorsal. Pectorals about as long as the head, the osseous 
part of their spine as long as head without snout. Two patches 
of rather strong teeth on the 
0} Ee Z 
cays A ws muy vomer, arranged in two rows, 
0 290 bP aati, which are connected in the middle 
aot a gnergaee Cette 0900) 00 9 Yo, of 
0 ena) 
4 an st, sya by a single row. Rather strong 
“ x pointed teeth, directed backwards 
in several rows in the jaws. 12 
Gillrakers, the longest a little 
shorter than the branchial fila- 
ments. Upper part olivaceous, lower parts lighter, belly and 
underside of head white. A blackish spot behind the gill- 
opening, which may be prolonged in a dark lateral band, 
narrowing behind. A black spot at the end of the tail. Length 
over 300 mm. 
Nomen indig.: Limpok (Mal.), Lais (Lampong). 
Habitat: Java (Batavia, Kediri); Sumatra (Palembang, 
Ringat!, Taluk!, Gunung Sahilan!, Djambi!, Lampong, Laut 
Tador, Indragiri, Upper Langkat, Deli); Borneo (Mahakam- 
river!, Sintang!, Danau Sriang). 
In fresh water. 
Fig. 81. 
Silurodes hypophthalmus (Blkr.) 
Teeth of upper jaw and palate & 2!/4. 
2. Silurodes borneensis (Steind.). 
Callichrous borneensis Steindachner, Abh, Senckenb, Naturf.Ges. XXV. 1901, p. 445. 
Di Ae Akon gk. dh eslOno Verge 
Height equal to head, about 5'/,. Eye nearly 6, situated 
immediately behind the corner of the mouth. Lower jaw slightly 
projecting. Maxillary barbels 2 times, the very weak mandi- 
bulary barbels about 5'/, times in length. Height of dorsal 
about 1'/, in head. Last ray of anal totally connected with 
the caudal. Ventrals short, their longest lateral ray about 2'/, 
in head. Caudal as long as head, incised. Pectorals a little 
shorter than head, their spine rather strong, dentated at the 
hindborder, about */, of length of head. Vomerine teeth in 
an extremely narrow, linear, transverse band. Colour dark 
brown. No dark spot before caudal. |Not seen by us]. Length 
of single specimen known 84 mm. 
Habitat: Borneo (Baram-river, Serawak). 
