19. liAKDUS. 105 



line and the root of the ventral. Body ohlong, its depth being two- 

 ninths of the total length (without caudal). The length of the head 

 is two-sevenths of the same. Head low, elongate ; eye small ; snout 

 rather prolonged ; lips veiy thick, the lower produced into a long 

 flap. Dorsal lin low ; its origin is opposite to that of the ventral, 

 and midway between the root of the caudal and the end of the snout. 

 Anal tin rather narrow and deep ; caudal forked. Coloration uni- 

 form, {liiipp.) 

 Lake Zuna. 



46. Barbus zambezensis. 



Labeobarhus zambezensis, Peter.f, Monatsber. Ak. Wiss. Berlin, 1852, 

 p. G83. 



D. 12. A. 8. L. lat. 34. L. transv. 5|/4. 

 Dorsal fin without enlarged osseous ray. There are three longi- 

 tudinal series of scales between the lateral line and the root of the 

 ventral. Body oblong, its depth being nearly equal to the length of 

 the head, and contained thrice and two-thirds in the total (without 

 caudal). Head rather low, moderately elongate ; eye of moderate 

 size; snout somewhat prolonged; both upper and lower lips pro- 

 duced into a longish flap. Dorsal fin elevated, commencing a little 

 before the ventral, but nearer to the root of the caudal than to the 

 end of the snout. Anal narrow and deep. Caudal deeply forked. 

 Coloration uniform. 

 Zambezi. 



This description is made from a drawing 5 inches long, kindly 

 communicated to me by Prof. Peters. 



47. Barbus perince. 



Riippell, Mits. Senckenb. ii. 1837, p. 12, taf. 2. fig. 2. 



D. 11. A. 7. L. lat. 30. L. transv. 5|/4. Vert. 20/15. 

 The osseous dorsal ray is rather feeble, smooth. There are three 

 series of scales between the lateral line and the root of the ventral 

 fin. Body compressed and somewhat elevated, as in Leuciscus rutilus, 

 its depth being one-third of the total length (without caudal) ; head 

 small, its length being rather less than one-foiu-th of the total 

 (without caudal) ; its depth equals its length (without snout). Eye 

 rather large, equal to the length of the snout, two-sevenths of that 

 of the head, and two-thirds of the width of the intcrorbital space, 

 which is convex. Mouth anterior ; lips thin, the lower vrith the 

 transverse fold interrupted in the middle. Dorsal fin rather elevated, 

 its origin is somewhat nearer to the end of the snout than to the 

 root of the caudal. Caudal fin deeply forked. Bright silvery, with 

 a bluish stripe from the scapida to the middle of the caudal, and 

 sometimes with a small blackish spot on tlic root of the caudal. 



Nile. 

 a-h, c~d. Adult. Nile. From Dr. Riippeirs Collection. 

 e-fj. Adidt (4 inches long). Lower NUc. I'rom Mr. Pcthcrick's 

 Collection. 



