180 PROCEEDINGS OF THE ACADEMY OF [1899. 



like the lower surface of the body. Caudal forked. Total length, 

 5^ inches. 



No. 16,380. 



Two dried specimens in a rather poor state of preservation are 

 referable to this species; they measure about 8 inches. 



Nos. 16,381, 16,382. 



3. Leuciscus costatus sp. nov. 



Head conical, convex above. Premaxillaries not projecting 

 beyond the snout. Mouth nearly reaching anterior margin of the 

 eye. Eyes placed laterally and before the centre of the head, 

 contained 4^ times in the head and If in the interorbital space. 

 Origin of the dorsal wholly behind the ventral basis and nearer the 

 tip of caudal than tip of snout. Origin of the anal behind the dor- 

 sal. A fleshy appendage to the genital aperture developed in three 

 specimens, which are presumably males, somewhat large. Depth 

 of the emargination of the caudal about ^ its length. Both 

 caudal lobes are rounded and the upper is longer than the lower. 

 Color in alcohol, brownish above, lighter beneath. Sides and 

 upper parts with fine dots and spots of blackish and dark brownish. 

 Fins all plain colored, the dorsal and caudal a shade or so darker 

 than the others. Body covered with small scales, about 75 to 84 

 in the lateral Hue, which is only slightly decurved. D., 8; A., 8. 

 Teeth, 2, 5-5, 2. Four specimens, Nos. 16,383, 16,384, 16,385, 

 16,386. A comparison of them shows the first, a female, is the 

 largest, as follows : 



HEAD IN BODY. DEPTH IN BODY. PECTOEAL IN HEAD. LENGTH. 



31^ in. 4tVin. h\ia. St'ff in. 



3f ^ in. 4iV in. Itt in. ^'A in- 



3§fin. 42\in. IjV in. 2^ in. 



3jV in. 4 in. l^V in. 2 in. 



4. PBeadaspius leptoeephalas (Pall.). 

 One specimen. No. 16,387. 



5. Opsariichtliys bidens Giinth. 



Two specimens, Nos. 16,388, 16,389. 

 COBITID^. 



6. Kisgurnus anguillicandatas (Cantor). 



A comparison of the specimens belonging to this species sho>rs: 

 Head, 5-6f ; depth, 8|-10J; D., 7; A., 6; total length, 3|-6 

 inches. 



Nos. 16,390, 16,391, 16,392. 



