98 CYPEINIDJE. 



This species offers a very singular variation of the form of the 

 snout. The four specimens examined are females with the ova in 

 the same advanced state of development, and 8 and Sg inches long. 

 However, one has the snout considerably produced, its extent being 

 scarcely less than the length of the postorbital portion of the head ; 

 the lips are extremely thick, and the lower separated by a deep 

 fissure into two lobe-like lateral halves ; the skin of the prajorbital is 

 provided with several series of small, round, shallow grooves or 

 pores. In the other specimens the snout is obtuse, much shorter 

 than the postorbital portion of the head ; the lips are much less 

 thick, the fold of the lower being broadly interrupted in the middle. 

 The praeorbital grooves are as much developed as in the first spe- 

 cimen, or merely indicated, or entirely absent. It appears that this 

 peculiar difference can be accounted for only by a different age of the 

 individuals. 



Pharyngeal teeth 5.3. 2 — 2 .3.5, subconical, subuncinate. 



a-d. Females, 8-8| inches long. Formosa. From Consul R. Swin- 

 hoe's Collection. 



b. Africa. 



28. Barbus quadrimaculatus. 



Gobio quadrimaculatus, Hiippell, Mtis, Scnckenh. ii. 1837, p. 22, taf. 3. 



fig. 3. 

 hirticeps, Riippell, I. c. p. 23. fig. 4 (male). 



D. 9. A. 7. L. lat. 35-37. L. transv. 10. 



Dorsal fin without osseous ray. Male (?) with the snout covered 

 with warto ; mouth inferior. Body not compressed, moderately 

 elongate. The origin of the dorsal fin is in advance of that of the 

 ventrals, and midway between the end of the snout and the root of 

 the caudal. Caudal emarginate. A blackish spot on the middle of 

 the dorsal fin, sometimes another in the scapulary region, and a third 

 in the middle of the root of the caudal. {Eiij^p.) 



Rivers and rivulets of Abyssinia. 



Heckel is inclined to refer this species to Discognatlius (Eussegger's 

 Reisen, i. p. 1074) ; on another occasion (/. c. p. 1027'^ he refers it 

 to Tylognatlms. 



2. Snout without pores or tubercles. 

 a. Africa)!. 



29. Barbus capensis. 



Barbus (Cheilobarbus) capensis, Smith, III. Zool. S. Africa, Pisces, 

 pi. 10. fig. 1 (scales too small). 



D. 11. A. 8. L. lat. 40. L. transv. 6/6. 



Dorsal fin without strong osseous ray. There are three and a half 



longitudinal series of scales between the lateral line and the base of 



the ventral. Body rather elongate ; snout much produced, pointed, 



with rather thin lips. Eyes small. The origin of the dorsal fin is a 



