CYPKINID^:. 11!) 



thrice and one-third in the total length (without caudal). Head thick, short, with the 

 snout obtuse, the lower jaw projecting beyond the upper. Diameter of the eye about 

 equal to the extent of the snout, one-half of the interorbital space, and two-ninths of 

 the length of the head. The origin of the dorsal fin is midway between the root of the 

 caudal and the eye in males, and equidistant between the root of the caudal and the 

 praeoperculum in females. The origin of the anal is opposite to that of the dorsal in 

 males, and somewhat more backwards in females, in which, besides, the anterior anal 

 rays are stiff and inflexible. The male has the vertical fins and the pectorals much 

 more elongate than the females. 



Colour in spirits. — Males have all the scales provided with a more or less broad 

 carmine-red margin ; sides of the head, dorsal, and anal fin with similarly coloured 

 spots; caudal entirely red. Females have the tail and base of the anal and caudal 

 dotted with black. 



Colour in life. — Males [251]. Snout yellow, body opalescent, each scale with a 

 carmine-red margin ; these are darker and broader behind the origin of the dorsal and 

 on the shoulder, where they assume the appearance of a red patch. Dorsal with bands 

 of reddish brown, much broader than the interspaces between them ; upper part 

 blackish ; margin white. Anal yellow, with bands similar to those on dorsal. Tail 

 and caudal red, the latter with a black margin. Pectorals yellow, with white margins. 



Two to four inches in length. 



Wells at Zanzibar. Pangani river. Streams at Seychelles. Quillimane. 



It is remarkable that out of many hundred specimens observed by Colonel Playfair 

 at Zanzibar, Pangani, and Seychelles, no female was ever found at the two first-named 

 places, and no male at the last. 



Family CYPRINID.E. 



LABEO, Cm. 



407. Labeo forskalii. 



Labeo forskalii, Riipp. Mus. Senck. ii. p. 18, tab. 3. fig. 1 ; Heckel, in Russegger's Reisen, ii. 3. p. 300, 



taf. 20. fig. 2. 

 cylindricus, Peters, Monatsber. Akad. Wiss. Berl. 1852, p. 684. 



River Rovuma. East coast of Africa. Mozambique. Nile. 



RASBORA, JSleek. 



408. Rasbora zanzibarensis, sp. n. Plate XVII. fig. 4. 



D. 9. A. 8. L. lat. 33. L. transv. 5£/4. 



Dorsal fin inserted behind the ventrals, but in front of the anal. Body compressed, 

 rather elongate, its greatest depth being equal to the length of the head, which is two- 



