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is situated before that of dorsal. Pectorals rather high up. 

 Ventrals abdominal, small in males, large in females, with 7 

 rays. Caudal more or less deeply emarginate. Gillmembranes 

 free from isthmus, only united with each other at their rostral 

 end. Six or seven branchiostegals. No pseudobranchiae. Gill- 

 rakers small, knob-like or pointed. Third and fourth upper 

 pharyngeals dentigerous, the teeth of the fourth in a large 

 oval patch, those of the third in a small elongate one. Lower 

 pharyngeals separate, triangular. 



Distribution: Two species known from lakes in the inte- 

 rior of Celebes. 



Key to the species of Xenopoecilus. 



1. A. 21 — 23. Pectorals 1.5 in head. Origin of anal nearer 



to head than to base of caudal A', sarasi/ioriiin p. 378. 



2. A. 24 — 27. Pectorals 1.8 — 2.4 in head. Origin of anal 



midway between head and base of caudal X. poptae p. 379. 



I. Xenopoecilus sarasinorum (Popta). 



Haplochiliis sarasinorum Popta, Notes Leyden Museum XXV. 1904 (1905), p. 239. 

 Xenopoeciltis sarasinoruvi Tate Regan, Ann. Mag. Nat. Hist (8) VIII. 191 1, p. 374. 



B. 6; D. II — 13; A, 21 — 23; P. II — 12; V. 7; L.l. 75 ; L.tr. 21. 



Head depressed, flattened above, body and tail compressed. 

 Dorsal profile nearly straight. Height 5.6 — 6.5, 6.J — J.J in 

 length with caudal. Head 3.2 — 3.3, 3.8 — 3.9 in length with caudal. 

 Eye 3.3 — 3.7, 1.2 in snout, 1.4 — 1.6 in postorbital part of head 

 and about equal to interorbital space. A narrow band of 

 small, pointed, unequal teeth in the jaws. Cleft of mouth 

 reaching to middle of snout. Dorsal above last half of anal. 

 Origin of anal nearer to head than to base of caudal. Pectorals 

 1.5 in head. Ventrals 3.5 — 4 in head in males, 2 in head in 

 females. Origin of ventrals somewhat nearer to base of caudal 

 than to point of snout. Caudal deeply emarginate. Colour of 

 alcohol specimens brownish yellow, upper part of head darker 

 brown. Sides silvery, with a fine blackish longitudinal stripe. 

 Dorsal dark brown, anal, caudal and pectorals brown. Ventrals 

 hyaline. Length 69 mm. [After C. Popta, not seen by us]. 



Habitat: Celebes (Lake Lindu). 



