10 



Habitat: Java (Batavia !, Samarang); Sumatra (Palembang, 

 Laut Tador, Indragiri, Upper Langkat, river Selapian). 

 Siam, Burmah and British India. l ) 



In freshwater. 



2. Notopterus chitala (H. B.). 



Mystus chitala Hamilton Buchanan. Fishes Ganges. 1822, p. 236. 

 Notoptertis lopis Bleeker. Nat. en Geneesk. Arch. Ned. Ind. II. 1845, P- 5 10 - 

 Notopterus hypselonotus Bleeker. Verh. Bat. Gen. XXIV. 1852. Bijdr. kennis 



Chirocentr. etc. p. 27. 



Notopterus chitala Giinther. Cat. Brit. Mus. VII. 1868, p. 479. 

 Notopterus chitala Bleeker. Atl. Ichth. VI. 18661872, p. 147. 

 Notopterus chitala Day. Fishes of India. 4. 18781888, p. 654. 

 Notopterus chitala Popta. Notes Leyden Mus. 1906, p. 209. 



Fig. 6. Notopterus chitala (H. B.) 



B. 89; D. 9 10; A. 110135; P. 1516; V. 6; L.I. 

 about 200 ; L, tr. about 75 (in a vertical line through origin 

 of anal). 



Oblong, very compressed. Tail elongate and tapering. Dorsal 

 profile before dorsal very convex, sloping steeply to head, 

 the posterior profile of which is concave. Abdominal profile 

 straight. Height 3 3 / 4 4 ! / 2 , head about 4 5 in total length; eye 

 4 ! /2 7 ! /2) longer than snout. Maxillary reaching far behind 

 eye, about 2 ! / 2 in length of head without opercular flap. 

 Origin of dorsal about equidistant between caudal and end of 

 snout or eye. Ventrals immediately before anus, united at their 

 base, about as long as */ 2 diameter of eye. Pectorals rounded, 

 i'/2 2 times in length of head (without opercular flap). Scales 



i) The occurrence in Celebes of this species as quoted by BLEEKER after 

 S. MULLER is certainly erroneous (see MAX WEBER Siboga-Exped. Fische 

 1913, p. 611). 



