362 
from the lattter. Anal 14—15. Pectoral spine as long as the 
head, with strongly serrated inner edge. Ventrals not extending 
to the anal. Caudal deeply forked. Caudal peduncle twice as 
long as deep. Greyish; dorsal with dark basal and intramarginal 
bands, Two specimens 75 and 90 mm. in total length. | After 
C. Tate Regan, not seen by us]. 
Habitat: Sumatra (Deli). 
12. Leiocassis inornatus Boul. 
Liocassis inornatus Boulenger, Ann. Mag. Nat. Hist. (6) XIII. 1894, p. 245. 
Liocassis inornatus C. Tate Regan, Ann. Mag. Nat. Hist. (8) XI. 1913, p. 549. 
Depth of body 7 times in total length, of head 4 times. 
Head 1'/, as long as broad. Snout broad, rounded, scarcely 
projecting beyond the mouth; occipital region naked, rugose; 
occipital process nearly twice as long as broad, reaching the 
basal shield of the dorsal spine; diameter of eye g times in 
length of head; interorbital width 3 times; barbels slender, 
the maxillary reaching the opercle. Vomerine teeth in a curved 
uninterrupted band, without posterior median process. Dorsal 
I. 7; spine feebly serrated behind, */, length of head. Adipose 
fin 1?/, times as long as dorsal, a little shorter than its distance 
from the latter. Anal 16. Pectoral spine ?/, length of head, 
strongly serrated on the inner edge. Uniform dark brown. 
Length of single known specimen 145 mm. [After Boulenger, 
not seen by us]. 
Habitat: Borneo (Senah, Sarawak). 
13. Leiocassis vaillanti Reg. 
Leiocassis Moeschii Vaillant, Notes Leyden Mus. XXIV, n°. I—3, 1902, p. 61 
(nec ,Boulenger). 
Liocassis vaillanti C. Tate Regan, Ann. Mag. Nat. Hist. (8) XI. 1913, p. 549. 
Deas Gh) st AY ack deme Se WVero: 
Dorsal profile slightly curved between snout and dorsal. 
Height about 6, head 4, naked and finely granulated above. 
A separate shield between basal bone of dorsal spine and 
occipital process, which is longer than broad. The anterior 
edge of the bony area on the head is emarginate. Eye about 
8, situated in the anterior half of the head, about thrice in 
the rounded snout, which is scarcely more than the interor- 
bital space. The nasal barbels reach farther than the eye, the 
