BABBITS. 



113 



of caudal than occiput, border slightly convex ; last simple ray mode- 

 rately strong, bony, strongly serrated, serrated part f to f length of head. 

 Anal III 5, reaching caudal. Pectoral f to f length of head, not 

 reaching ventral; base of latter partly in advance of dorsal. Caudal 

 peduncle If to 11 times as long as deep. Scales radiately striated, 

 44-47 gf^, 5-6 between lateral line and ventral, 18-20 round caudal 

 peduncle. Brownish above, whitish beneath. 



Total length 215 millim. 



Tunisia. — Types in Genoa Museum. 



1. One o£ the types. Oasis of Nefzana. Marquis 0. Antinori (C.) ; 



Genoa Museum (P.). 



100. BARBUS NASUS. 

 Giinth. Ann. & Mag. N. H. (4) xiii. 1874, p. 232, pi. xiv. fig. B, and Nov. Zool. 

 viii. 1901, p. 368, pi. xix. 



Depth of body 4 to 5 times in total length, length of head 3f to 

 4^ times. Snout narrow, pointed, 2^ to 2^ times in length of head; 

 eye 4 (young) to 6 times in length of head, interorbital width 3| to 4J 

 times ; mouth very narrow and inferior, its width 4 \ to 6 times in 



Pisr. 90. 



Barbus nasus. 

 After Giinther (Nov. Zool. 1001). \. 



length of head ; lips thick, not extending across chin ; barbels two on 

 each side, anterior 1^ to 2 times diameter of eye, posterior 1§ to 1\ 

 times. Dorsal IV 7-8, equally distant from eye and from root of 

 caudal, border concave; last simple ray very strong, bony, strongly 

 serrated, serrated portion -f to £ length of head. Anal III 5, not reaching 

 VOL. II. x 



