200 
otherwise, even as the caudal, brownish, darker marmorated, 
similar to the sides of the body. [After Volz, not seen by us]. 
Locality: One specimen, Kwantang river, near Djapura 
(Indragiri, Sumatra). 
This species differs from S. phazosoma in the less numerous 
dorsal rays (49 in stead of 53—-58), the lesser height of the 
body (5 in stead of 6'/,) and that in the single specimen 
known the ventral is slightly behind and not below dorsal. 
(see Max Weber & de Beaufort in Maass: ,Durch Zentral 
Sumatra’ Uto12; cPasche dps). 
3. Wallago Bleeker. 
(BLEEKER, Ichth. Arch. Ind. Prodr. I Siluri 1858 p. 259"). 
Compressed, head broad, snout depressed; cleft of the mouth 
slightly ascending. Eye with a free orbital margin, above the 
level of .the corner of the mouth. Nostrils remote from each 
other, the anterior one tubulated. A maxillary, and some distance 
behind the symphysis, a mandibulary pair of barbels. Dorsal 
fin very short, without spine and composed of 5 rays. No 
adipose fin. The long anal free from caudal, which is forked. 
Ventrals behind or below dorsal, with 1to—11 rays. Pectorals 
with a spine. Teeth depressible, those in the jaws in a broad band, 
those on the vomer in two patches. Gillrakers very short and 
stiff. Gillmembranes free from each other and from the isthmus. 
Branchiostegals 15—20. 
Fig. 78. Wallago miostoma Vaill. 
SyNO pss! OF (thers pe cies: 
1. Corner of mouth surpassing hindborder of eye, 21 
eillralsersioe. venient et Gore 5 ooo oe oa S a fel, se) we wa to I CLL eOle 
1) This is the first diagnosis of the genus, although the name Wadlago was 
used by BLEEKER since 1851, but without description. 
—s 
