228 On Ttoo neio Homalopteroid Fishes from Borneo. 



XXT. — Dfscriptwns of Two new Homalopteroid Fishes from 

 Borneo. By G. A. Boulengek, F.R.S. 



Homaloptera microstoma. 



Head much depressed, one fouvtli longer tlian broad, its 

 lengtli one fifth of the total. Snout with obtuse margin ; 

 mouth ve]y small, its width baieiy one fourth that of the 

 head ; barbels very short, on the lower surface of the snout, 

 near the mouth ; lips not fringed ; eye in the posterior half 

 of the head, ^ length of head, f interorbital width. Dorsal 

 10, commencing slightly in advance of first ventral ray, 

 situated at equal distance from the end of the snout and the 

 root of the caudal. Anal 7. Pectoral moderately large, 

 terminating at a considerable distance from the ventral. 

 Caudal once and a half as long as head, with deep crescentic 

 notch, lower rays longest. Caudal peduncle nearly twice as 

 long as deep. Scales extremely small, smooth ; lat. 1. 80. 

 Uniform pale brown above, yellowish beneath. 



Total length 79 millim. 



A single specimen from the Akar River, Sarawak, collected 

 by Mr. C. Hose. 



Glaniopsis, gen. no v. 



Head and anterior part of body depressed ; snout scarcely 

 projecting beyond the mouth, which is moderately large; five 

 pairs of barbels — two in front of the snout, two at the angle 

 of the mouth, and one between the two nasal openings; gill- 

 openings narrow. Body covered with small scales, head 

 naked ; lateral line ])resent. Dorsal fin short, further back 

 than base of vcntrals ; anal short; pectoral and ventral fins 

 horizontal, many-rayed, the outer rays simple. 



\\ ell distinguished trom Homaloptera by the presence of a 

 nasal barbel. 



Glaniopsis Hanitschi. 



Depth of body ^^\ times in total length, length of head 5 to 

 5^ times. Head scarcely longer than broad; snout rounded; 

 eye in the middle of the length of the head, its diameter 5 times 

 in length of head, 2^ in interorbital width ; barbels siibequal 

 in length, twice as long as diameter of eye. Dorsal 8, com- 

 mencing a little behind base of ventrals, situated at equal 

 distance from the end of the snout and the end of the caudal. 

 Anal 7. Pectoral as long as head, terminating at a consider- 

 able dii«tancc from the ventral. Caudal as long as head. 



