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anal. Ventrals in the middle between tip of snout and end 

 of caudal. Caudal slightly emarginate, shorter than head. Scales 

 scarcely visible with the naked eye. Colour uniform reddish 

 brown, lighter below. Length about 80 mm. 



Nomen indig. : Sisi-samping, Serowot (Sundan.). 



Habitat: Sumatra (river Lamatang, Deli!); Java (Buiten- 

 zorg, Tjandjur). — Southern Shan States, Burma and North 

 east Bengal. 



2. Acanthophthalmus shelfordi Popta. 



Acanthophthalmus Shelfordii Popta, Notes Leyden Mus. XXIII. 1901—03, p. 231. 



D. 6; A. 5; V. 6; L. 1. 220. 



Compressed. Height S'/g, head 6^/3. Eye 10, situated in 

 the anterior half of the head. Interorbital space a little convex, 

 equal to eye. Profile of head convex. Snout prominent, '/s of 

 the length of the head. Underlip cloven. Six barbels, slightly 

 longer than eye. Dorsal its own length before anal, near the end 



Fig. 14. Acanthophthabmis shelfordi Popta (After Miss Popta). Nat. size. 



of the third quarter of the length. Ventrals in the middle between 

 snout and tip of caudal. Caudal truncate. Colour soft reddish; 

 large irregular brown spots on back and sides of body in 

 three rows, one on back and one at each side, spots on the 

 head smaller. Dorsal and caudal with brown streaks, other fins 

 soft reddish. Length of single specimen known 56 mm. [After 

 Miss Popta, type of the species in the Leyden Museum 

 seen by us]. 



Habitat: Borneo (Sarawak-river, near Kuchin !). 



3. Acanthophthalmus lorentzi n. sp. [Fig. 12, p. 30]. 



D. I. 6; A. 6; P. I. 8; V. /. 



Slightly compressed, height about 7 in length with caudal. 

 Head more than 5, more than 6 in length with caudal. Eye 

 about 6. Snout about i'/^ times longer than eye, bluntly 

 rounded and slightly prominent. Lips rather thin, the lower 

 with a rather long, arborescent prolongation on each side. Six 

 about equal barbels, about thrice in the length of the head. 

 Origin of dorsal behind the middle of distance between eye 



