141 



Habitat: Singapore; Sumatra (Palembang); Java (Batavia, 

 Tandjong Oost, Perdana, Tjampea, Buitenzorg!, Tjipanas!, 

 Tjiandjur, LeIIes, Garut, Situ Bagendit !, Grati, Sindanglaja, 

 Megamemdong, Palabuan, Nusa Kembangan, Semarang !); Bor- 

 neo (Upper Riko river!, Santabug). — Malay Peninsula, Siam. 



In rivers. 



2. Nomorhamphus nov. gen. 



Elongate, compressed. Mandible slightly projecting beyond 

 the upper jaw, provided at its tip with a fleshy prolongation, 

 which is curved backwards, at least in preserved specimens. 

 Intermaxillaries forming a triangular plate, which has a band 

 of fine teeth, similar to those of the lower jaw. Origin of dorsal 

 far backwards, behind that of anal and shorter than lastnamed 

 fin. Pectorals inserted high, not as long as head. Ventrals 



Fig. 53. Xomorhcuiiphus cclebensis n. sp. X ^if 



nearer to caudal than to head. Caudal fin rounded. Scales 

 moderate, rather deciduous. Lateral line indistinct, running 

 low down. Gillopenings wide. Gillrakers present, few in number, 

 knoblike and provided with minute spicules, which are also 

 present on the free border of a membrane, situated on the 

 branchial arch (at least on the first), at the innerside of the 

 gillrakers. Viviparous. 



Distribution: Fresh water of Celebes. 



Key to the species of Nomorhamphus. 



1. L.l. 50 — 55. D. II — 12 N'. celebejisis p. 141. 



2. L.l. 64. D. 12 — 13 A^. hagetii p. 142. 



I. Nomorhamphus celebensis n. sp. [Fig. 53, p. 141]. 



:mirainphus (Dermatogenys) spec. Max Weber, Bijdragen tot de Dierk; 

 Amsterdam, 1914, p. 202. 



D. II— 12; A. 15; P. I. II; V. 1.5; L.l. 50—55. 



