49 



opposite to 5th branched ray of anal, separated by 18 or 19 

 scales from occiput, its distance from occiput about equal to 

 that from end of middle caudal rays. Height of dorsal nearly 

 equal to length of head. Anal emarginate, the height of its 

 anterior rays about l / 5 shorter than height of body. Ventrals 

 with the outer ray filiform, reaching on anal, its length equal 

 to 4 / 5 of height of body, separated by 3 scales from lateral 

 line. Pectorals falcate, pointed, l / 3 longer than head, reaching 

 to anus. Caudal deeply incised, its lobes pointed, elongate, about 

 ! / 4 of total length. Lateral line gently curved downward to 

 near ventral profile. Small gular scales reaching below pectorals 

 to ventrals. Brown, a blackish line connecting a dark blotch 

 above origin of pectorals with a similar one at base of caudal. 

 Fins hyaline. Length over 60 mm. 



Habitat: Sumatra (Deli!). Burma, Assam, British India 

 and Ceylon. In ponds and streams. 



2. Laubuca (Eustira) maassi (M. Web. &de Bfrt.). [Fig. 21, p. 48]. 



Eustira Maassi Max Weber & de Beaufort, in Maass: n Durch Zentral Sumatra' 

 Bd. II. 1912, Fische, p. 531. 



__ 



D. 2.7; A. 3.10; P. i. ii; V. 1.6; L. 1". 34; L. tr. _j_. 



I. 1-2 



Dorsal profile slightly convex. Profile of head straight, ab- 

 dominal profile convex from snout to anus, with a trenchant 

 keel. Height 3 1 / 3 , head 3 3 / 4 . Eye 3 ! / 2 , nearly 1 J 3 longer than 

 snout and slightly less than flat interorbital space. Gape of 

 mouth obliquely ascending, reaching to level of lower border 

 of eye. Origin of dorsal opposite to 2nd branched ray of anal, 

 separated by 20 scales from occiput, its distance from occiput 

 somewhat more than that from the point of the caudal. Height 

 of dorsal slightly more than half length of head. Anal emarg- 

 inate, the greatest height of its anterior somewhat elongated 

 rays equal to half height of body. Ventrals half as long as 

 height of body, separated by one scale from lateral line. Pec- 

 torals falcate, pointed, ] / 3 longer than head, reaching to posterior 

 third of ventrals. Caudal deeply incised, its lobes pointed, 

 elongated, longer than '/ 4 of total length. Lateral line abruptly 

 and nearly vertically bent downward to near ventral profile. 

 Small gular scales reaching only to below pectorals. Brown, 

 back darker, a dark longitudinal band, running from oper- 

 INDO-AUSTRALIAN FISHES III. 4 



