* 269 
and covered by thin skin. Eyes covered by skin. Nostrils 
close together, separated by a nasal barbel. Maxillary barbels 
with a broad basal membrane and proximally osseous. The 
4 mandibular and mental barbels in a transverse line, close 
behind the border of the lower jaw. The short dorsal fin with 
a strong spine. Adipose fin of same length. Anal fin rather 
short and high. Caudal fin deeply forked. Ventrals horizontal, 
6-rayed, inserted far behind the origin of the dorsal. Pectorals 
horizontal with a strong spine. No teeth on palate, those in 
the jaw. small and villiform. Gillopenings separated by a rather 
narrow isthmus, with which the gillmembranes are confluent. 
5—7 branchiostegals. 
1. Gagata Schmidti Volz. 
Callomystax Schmidti Volz, Revue Suisse de Zool. XII. 1904, p. 470. 
Peo a se. be 1. 10%) Ve: 
Height 5'/,—6'/,, head 4—4"'/,, depressed, 1'/, times broader 
than high. Length of occipital process equal to its distance 
from the anterior nostril, about two times as long as broad. 
No fonticulus visible. Eye 13, situated on the upperside of 
the middle of the head. Nasal barbels a little shorter than the 
interorbital space, maxillary barbels extending to the end of 
the head or a little farther. Mandibulary barbels half the 
mentals, about '/, of the length of the maxillary ones. Height 
of dorsal fin more than height of head. Dorsal spine '/, lower. 
Its front and hindborder dentated, with exception of its upper- 
part. Distance of adipose fin from dorsal 2'/, times its length. 
Pectorals longer than ventrals, equal to head, their spine 
curved, flat, stronger than but as long as the dorsal one, its 
hindborder with strong teeth. Lower lobe of caudal the longer. 
A conspicuous lateral line. Uniform grey brown, fins some- 
what lighter. Rays of dorsal darker in their median part. 
Length too mm. [After Volz, not seen by us]. 
Habitat: Sumatra (Simbolan hills, 1400 M. high). 
3. Bagarius Bleeker. 
(BLEEKER, Verh, Bat. Gen. XXV. 1853, Nalez. Ichth. Bengalen, p. 121). 
Head depressed, its upper surface naked and osseous. Mouth 
crescentic, with the upper jaw strongly projecting. Nostrils 
close together, separated by a membranaceous fold with a 
