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 inornatiis 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 i'/ 2 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 9 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, 3 / 5 length of head. Adipose 

 fin i 2 / 3 times as long as dorsal, a little shorter than its distance 

 from the latter. Anal 16. Pectoral spine 2 / 3 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 



(nee Boulenger). 

 Liocassis vaillanti C. Tate Regan, Ann. Mag. Nat. Hist. (8) XI. 1913, p. 549 



D. I (II) 7; A. 15; P. I. 8; V. 6. 



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 



