﻿56 



longer than snout, 1.2 in interorbital space. Lips thin, mouth 

 very oblique, lower jaw included. Origin of dorsal equidistant 

 from eye and base of caudal, opposite to 16* scale of lateral 

 line. Dorsal straight or slightly convex, separated by 24 scales 

 from occiput, its height less than length of head. Anal half 

 as high as dorsal, its origin below the 22nd or 23rd scale of 

 lateral line. Ventrals subequal to pectorals, which are ^/^ or */g 

 length of head and nearly or quite reaching the ventrals. 

 Caudal forked, equal to head. Least height of caudal peduncle 

 more than twice in head, nearly equal to its own length, 

 surrounded by 16 scales, 9 of which are above the lateral 

 lines. Olivaceous above, silvery on sides, with or without dark 

 stripes along the series of scales. Length 60 — 85 mm. [Type 

 of the species in the British Museum seen by us]. 

 Habitat: Singapore! 



2. Rasborichthys helfrichi (Blkr.). [Fig. 24, p. 55]. 



Lcuciscus Hclfrichii Bleeker, Act. Soc. Scient. Indo Neerl. 11. Tiende Bijdrage 



Ichthyol. Borneo, 1857, p. 15. 

 Rasborichthys Helfrichi Bleeker, Ichth. Arch. Ind. Frodr. II. Cyprini, i860, 



p. 456. — Atl. Ichth. III. 1863. p. 128. 

 Rasborichthys hclfrichii Gunther, Cat. Brit. Mus. VII. 1868, p. 319. 

 Rasborichthys BelfrichiiVa\\\a.\\t^ Nouv. Arch. Mus. Hist. Nat. (3) V. 1893, p. 90. 



D. 3.7; A. 3.17— 19; P. 1. 14— 15; V. 2.8; L. 1. 55—60; 

 10 

 L. tr. ^^. 

 9 — 10 



Elongate. Height about 4'/2, nearly equal to head, about 5^2 

 in length with caudal. Eye about 3, about equal to inter- 

 orbital space and somewhat longer than snout. Lips thin, lower 

 jaw prominent. Origin of dorsal somewhat behind middle of 

 line connecting end of snout and end of shortest caudal rays. 

 Dorsal truncate, separated by 28 — 30 scales from occiput, its 

 last spine equal to head. Anal with the anterior rays the 

 longest, its third spine about half head. Origin of ventrals half 

 length of head before that of dorsal, shorter than pectorals, 

 which are about equal to head without snout. Caudal deeply 

 forked, its lobes pointed, somewhat longer than head. Least 

 height of caudal peduncle about Ys less than its height, equal 

 to half length of head, surrounded by about 28 scales, 14 or 

 15 of which are above the lateral lines. Scales thin and very 

 deciduous. Uniform yellowish in formol specimens. Length 

 about 120 mm. 



