3^4 

 15. Leiocassis leiacanthus M. Web. & de Bfrt. 



Leiocassis leiacanthus Max Weber & de Beaufort, In : Alfred Maasz n Durch 

 Zentral-Sumatra" II. Fische 1912, p. 15. 



D. I. 7; A. 15; P. I. 7; V. 6. 



Dorsal profile slightly curved between snout and dorsal. 

 Height 4*/ 3 4 ! / 2 , head 3 3 / 4 , longer than broad and broader 

 than high, naked above, its bones rugose. Occipital process 

 longer than broad, separated by a separate shield (the length 

 of which is equal to its breadth) from the slightly broader 

 basal bone of the dorsal spine, both are rugose. Supraclavicular 

 plate produced backward into a small, pointed process not 

 extending so far back as the humeral (clavicular) process. 

 Eye about 7, situated in the anterior half of the head, more 

 than twice in the rounded slightly prominent snout, which is 

 equal to interorbital space and is ! / 3 of the length of the head. 

 Nasal barbels reaching behind the eye. Maxillary barbels reach 

 on opercle, mandibulary ones of about equal length, mental ones 

 much shorter. Dorsal spine half as long as head, not serrated 

 behind. Adipose fin twice as long as dorsal, as long as its distance 

 from that fin. Pectoral spine strongly serrated behind, equal 

 to head without snout. Ventrals reaching anal, their origin 

 nearly midway between dorsal and adipose fin. Origin of anal 

 behind that of adipose fin. Caudal emarginated. Height of 

 caudal peduncle i 2 / 3 in its length. Small teeth in the jaws 

 and on the palate in rather broad, slightly curved bands. 

 Dark brown, underside of head and belly lighter with three 

 light cross bands, the first from occiput to opercle, the second 

 from end of dorsal to anus, the third at the beginning of the 

 caudal peduncle. A light spot at origin of adipose fin. Caudal, 

 pectorals and ventrals with a black crossband, dorsal with 

 broad, anal with small longitudinal band. Length 62 mm. 



Habitat: Sumatra (Kwantan river!). 



1 6. Leiocassis moeschi Boul. 



Liocassis moeschii Boulenger, Proc. Zool. Soc. London, 1890, p. 39. 



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



D. i. 7; A. 15; P. i. 8. 



Upper surface of head naked and rugose; occipital process 

 as long as broad; a separate shield, a little broader than long, 



