351 



Distribution: India, Cochin China, Siam, Sumatra, Java 

 and Borneo. 



In rivers and brooks. 



Key to the indo-australian species of Cten ops. 



1. Dorsal with 2 to 4 spines; snout shorter tlian eye; soft 



(hirsal and anal and caudal produced Cl. villains p. 351. 



2. Dorsal with 5 — 7 spines: snout longer than eye; vertical 



fins not produced Cl. iiohilis p. 352. 



I. Ctenops vittatus (C. V.). [Fig. 91, p. 350]. 



Osphrontcinis villains Cuvier& \'alenciennes, Hist. Nat. Poissons, VII. 1831, p. 387. 

 Trichopiis slrialus Bleeker, Verh. Batav. Genootsch, XXIII. 1850, Visschen 



Doolhofv. Kieuw. p. 11. — Nat. Tijdschr. Ned. Indie I. 1850, p. 106. 

 Osphromenus slrialus Giinther, Cat. Brit. Mus. III. 1859 — 1861. p. 386. 

 Ctenops villains Bleeker, All. ichth. IX. 1877, Tab. 396, Osphrom. tab. 2, fig. 4. — 



Verh. Akad. Amsterdam XIX. 1879, Mem. Poiss. pharyng. labyrinth, p. 24. 

 Clenops villains Regan, Proc. Zool. Soc. London 1909, p. 776. 



D. II— IV. 6— 8; A. VI— VII. 24— 28; P. 9; V.I. 5; Sq. lat. 

 ca. 28; L.tr. 13. 



Height 2^/^ to about thrice in length without caudal. Head 

 of about same length, acute, rostro-frontal line concave. Dia- 

 meter of eye 'about 3'., in head, longer than snout. End of 

 intermaxillaries far distant from orbit. Dorsal and anal spines 

 feeble, soft dorsal and anal and caudal produced into a point. 

 Ventral filament equal to head or much longer. Lateral line 

 an interrupted series of small pores. Body with 2 — 4 dark 

 longitudinal stripes; two from eye to base of caudal, the upper 

 one interrupted by a humeral dark spot, which may be pre- 

 ceded by a light spot; caudal, dorsal and posterior part of 

 anal sometimes darkspotted. In young specimens usually two 

 black spots on base of caudal. Length 60 mm. 



Nom. indig. : Tjupang, Sepat-anatih (Malay, Batavia), 

 Pettek (Sund.). 



Habitat: Sumatra (Palembang, Djambil, Gunung Sahilan !, 

 Pagar alam !) ; Java (Batavia!, Buitenzorg!, Lebak, Tjampea, 

 Tjandjur, Bandung, Lelles) ; Borneo (Banjermasin, Sintang, 

 Sadong). — Cochin-China, Siam. 



In brooks and rivers. 



