34 

 5- Acanthophthalmus borneensis Blgr. 



Acanthophthalmus borneensis Boulenger, Ann. & Mag. Nat. Hist. (6) XIII. 



1894, p. 251. 



Acanthophthalmus borneensis Vaillant, Notes Leyden Mus. XXIV. N. I 3, 



1902, p. 150. 



D. 78; A. 67. 



Height 9, head 6.5 7. Eye 8. Suborbital spine very strong. 

 Six short barbels. Origin of dorsal about on the last third of the 

 length, end of base of dorsal above or shortly before anal. Ven- 

 trals halfway between head and caudal. Caudal crescentically 

 notched. Scales minute. Body colourless. Three black angular 

 bands on the head, the first on the snout, the second passing 

 through the eye, the third across the occiput and covering 

 the opercles. Dorsal and caudal black at the base. Length 

 63 mm. [After BOULENGER and VAILLANT, specimens in the 

 Leiden Museum seen by us]. 



Habitat: Borneo (Baram river and mouth of Raun river 

 and river Mandai). 



6. Acanthophthalmus vermicularis n. sp. 



Acanthophthalmus angitillaris Max Weber & de Beaufort, in Maass: w Durch 

 Zentral-Sumatra" II. 1912, Fische p. 533 (nee Vaillant). 



D. 7-8; A. 7; P. 1.7; V. 6. 



Compressed; height 18, 19 in length with caudal; head 10 

 in length without caudal. Eye 15, placed rather high, situated 

 in the anterior half of the head. Snout about 5 times as long 

 as eye, pointed, very prominent. Lips rather thick, the lower 

 one on each side with a broad rounded prolongation. Six 

 barbels, the two hinder ones the shortest, the longest more 

 than thrice in the length of the head. Origin of dorsal in the be- 

 ginning of the last fourth of the distance between point of snout 

 and base of caudal, above anus. End of base of dorsal above 

 the origin of the anal. Ventrals slightly less than half head, 

 about in the beginning of the fourth fifth of the length. Pectorals 

 less than half head. Caudal slightly emarginate, shorter than 

 the head. Scales scarcely visible with the naked eye. Colour 

 of alcohol specimen yellowish brown, a darker lateral band 

 along the middle. Length of the single specimen known 70 mm. 

 [Type of the species in the Zoological Museum of Amsterdam]. 



Habitat: Sumatra (river Kampar kiri!). 



