LAEEO. 



339 



rounded, very prominent, with large spiny tubercles ; eye superolateral, 

 nearly in middle of length of head, 3 (young) to 4\ times in length of 

 head, 1^ to 1J times in interorbital width; width of mouth, with lips, 

 2^ to 2\ times in length of head; inner surface of lips with numerous 

 transverse plicae ; a small barbel, hidden in the folds at side of mouth. 

 Dorsal III 9-10, strongly notched, longest ray as long as or a little 

 longer than head. Anal II 5, not reaching root of caudal. Pectoral 

 as long as or a little shorter than head, not reaching ventral. Caudal 

 peduncle a little longer than deep. Scales 33-35 p, 3 between lateral 

 line and ventral, 12 round caudal peduncle. Blackish brown above and 

 beneath, the caudal fin tinged with reddish. 



Total length 160 millim. 



Great Falls of Koukoure River, French Guinea. — Types in Paris 

 Museum. 



33. LABEO UMBRATUS. 



Abrostonuts umbratus, A. Smith, 111. Zool. S. A£r., Fish. pi. xii. fig. 1 (1841) ; 



Steind. Sitzb. Ak. Wien, ciii. i. 1894, p. 454, pi. iv. fig. 1. 

 Labeo ca/er, Ciisteln. Mem. Poiss. Afr. Austr. p. 60 (1861). 

 Labeo sicJieli, Casteln. 1. c. 

 Labeo umbratus, Bouleng. Ann. & Mag. N. H. (7) xii. 1903, p. 362. 



Body strongly compressed, its depth equal to length of head and 

 4 to 5 times in total length. Head H to If times as long as broad; 



Fig. 255. 



' :' •' ' 



m m 



*"^«ffiSS3£iJiJi& 



wk 



Labeo umbratus. 



snout rounded, feebly prominent, shorter than postocular part of head ; 

 eye lateral, 5 to 7 times in length of head ; interorbital width \ length 



Z2 



