379 

 2. Xenopoecilus poptae n. sp. ') [Fig. loo, p. 377]. 



B. 7; D. II — 13; A. 24— 27; P. 12— 13; V. 7; L.l. circa 75; 

 L.tr. circa 20. 



Head depressed, flattened above, body and tail compressed. 

 Dorsal profile straight. Height 4.4 — 6.5, 5.1 — 7.5 in length 

 with caudal. Head 3 — 3.2, 3.4 — 3.6 in length with caudal. Eye 

 4 — 5.2, 1.6 — 2.5 in snout, 1.5 — 1.6 in postorbital part of head 

 and 1.2 — 1.6 in interorbital space. Villiform band of pointed 

 teeth in the jaws. Corner of mouth one eye-diameter before 

 eye. Origin of dorsal somewhat before middle of anal. Origin 

 of anal midway between head and base of caudal. In the 

 males the dorsal and anal rays are much stronger and some- 

 what longer than in the females. Pectorals 1.8 — 2.4 in head. 

 Ventrals 4 — 5 in head in males, about 2.3 in head in females. 

 Base of ventrals midway between point of snout and base of 

 caudal. Caudal slightly emarginate. Colour of alcohol specimens 

 brownish above, darker on the head. Sides and belly silvery. 

 Fins dusky. Length of 11 specimens examined 97.5 — 204 mm. 



Habitat: Celebes (Lake Posso !). 



Freshwater. 



Note. Mr. A. C. Kruvt informs us, that this fish is caught 

 by hooks in November, December and January, when great 

 shoals of it are living in depths of 12 to 15 m. This is the 

 season of propagation as the caught fishes immediately discharge 

 their eggs. As soon as the eggs are extruded, the young fry 

 is hatched and swims with the mother. In the period of 

 spawning, the broken eggmembranes, rising to the surface, cover 

 extensive stretches of it and are called by the Toradjas 

 "momosonja". 



2. A d r i a n i c h t h y s M. Weber. 



(Max Weber, Bijdragen tot de Dierkunde, Amsterdam, igde Afl. I9i3,p. 204). 



Elongate, compressed. Head flattened above. Mouth rather 

 large, not protractile, horse-shoe-shaped, bordered above by 

 the large intermaxillaries, which are coalesced with the maxil- 

 laries, the two forming one large bone in the form of a hoof, 

 which articulates with the palatines by means of a knob-like 



1) Named in honour of Miss Dr. C. I'OPTA, the indefatigable ichthyologist of 

 the Leiden Museum. 



