3^3 



Rostro-dorsal profile straight from dorsal to nape, from there 

 to snout slightly declivous. Height 3.5 — 4.2; head 3.6 — 4.5 in 

 length. Eye 3 — 4 in head, conspicuously longer than snout, 

 1.6 to twice in postorbital part of head and less than I'y'.^ times 

 in convex interorbital space, vi'hich goes 2.6 — 3 times in length 

 of head. Maxillary extending somewhat before or behind vertical 

 through posterior nostril. Origin of dorsal nearer to caudal than 

 to head, opposite to iS^h or 19th lateral scale and separated 

 by 28 — 30 praedorsal scales from snout. Fifth to 7th dorsal 

 ray produced, reaching caudal or on it. Anal with a low sheath 

 of one series of scales at its base ; its 2 or 3 prepenultimatc 

 rays produced, even to last third of caudal. Caudal large, spoon- 

 shaped, its central rays produced. Pectorals round, rather large, 

 not much shorter than head. Height of caudal peduncle at 

 base of caudal about 1.3 in length of head, much longer than 

 its postorbital part. Lighter or darker brown, with about 6, 

 more or less distinct, often faint, darker crossbars. Fins dusky, 

 dorsal and caudal, at least its upper part with dark spots 

 between rays; ventrals and anal blackish. Length 100 mm. 



Habitat: Sumatra (Deli, Djambi!). 



In freshwater. 



II. Betta bellica Sauv. 



Betta bellica Sauvage, Bull. Soc. Zool. de France IX. 1884, p. 217. 

 Bctta bellica Tate Regan, Proc. Zool. Soc. London 1909, p. 779. 



D. i.io; A. 2.30— 32'); L.l. 35; L.tr. 9'/,. 



Rostro-dorsal profile slightly convex, more so in its anterior 

 part. Height 4.2, head 3.4 in length. Eye 3.1 in head, its 

 diameter conspicuously longer than snout, 1.7 in postorbital 

 part of head and nearly equal to interorbital space, which is 

 nearly '/a o^ the length of the head. Maxillary ending not far 

 from frontborder of eye. Origin of dorsal nearer to caudal 

 than to head, separated by about 30 scales from snout and 

 opposite to 19th or 20th lateral scale. Anal with a basal sheath 

 of one regular row of scales. Pectorals about equal to head 

 without snout. Height of caudal peduncle at base of caudal 



i) According to Sauvage's description the anal has 37 rays but this must be 

 a misprint, as his figure shows only 34 rays and the author says: "les 30 et 3ie 

 rayons de I'anale prolonges en filaments". In his figure follow 3 rays behind 

 the two prolonged rays (the 30th and the 31st), thus in total 34 rays. 



