﻿201 



_9_ 



D. 4.8; A. 3.5; P. 1. 15— 16; V. 2.8— 9; L. 1. 37; L. tr.j_. 



71 



Compressed, elevated, dorsal profile strongly ascending in a 

 straight line from snout to dorsal with a slight concavity at 

 the nape. Height 2.1 — 2.2, 2.7 — 3 in length with caudal. Head 

 3.2 — 3.6, 4.5 — 4.6 in length with caudal. Eye 2.8 to more than 

 3, longer than snout, surrounded by a gelatinous membrane, 

 situated near the upper profile of the head, about equal to 

 the flat or slightly excavated interorbital space. Snout very 

 blunt. Mouth inferior, strongly arched, rather narrow. Maxil- 

 lary reaching to below frontborder of eye or somewhat 

 farther. No barbels. Praeorbital triangular, with the anterior 

 and lower posterior corner rounded. Suborbital narrow. Origin 

 of dorsal opposite to nth or 12th scale of lateral line, conspi- 

 cuously behind origin of ventrals, separated from the occiput 

 by about 13 scales and a median plate corresponding to 2 or 

 3 scales, immediately before the dorsal spines; opposite to the 

 middle of a line connecting frontborder of eye or middle of 

 pupil and base of caudal. Dorsal concave, with a scaly sheath, 

 the fourth spine and first rays being prolonged and longer 

 than head. Fourth osseous spine strong and strongly serrated. 

 Anal deeply concave, with a scaly sheath, the third osseous 

 spine very strong and equal to head without snout or longer. 

 Ventrals and pectorals equal. The ventrals separated by 5 or 

 6 scales from lateral line, the outer rays elongated, reaching 

 on anal. Pectorals equal to head without snout or longer, 

 reaching on ventrals. Caudal deeply forked, lobes pointed, much 

 longer than head. Least height of caudal peduncle about twice 

 or somewhat more in length of head, slightly shorter than 

 its own length and surrounded by 18 — 20 scales. Scales partly 

 with longitudinal irregular lines. Tubes of lateral line rather 

 short. Silvery, back brownish. Fins with a more or less distinct 

 blackish margin. Length over 300 mm. 



„gr6sste Kopfhohe", which is in accoidance with the length of pectorals and 

 ventrals of Puntiiis waandersi. 



B. proctozysron Blkr. is also mentioned by v. Martens (Preuss. Exped. Ost- 

 Asien I. Zoologie, 1876, p. 402), from Sintang, Borneo. He puts a query with the 

 specific name. Now B. procfozysron Blkr. is very easy to recognise by its strongly 

 dentated anal spine, a character unique among Barbini^ as Bleeker has shown. 

 We suppose, that the definition of v. Martens, which he doubted himself, was 

 erroneous. B. proctozysron is therefore till now only known from Siam. 



