CLAEIAS. 



293 



distance from the occipital process one-fifth to one-fourth the length of the head, its 

 distance from the caudal fin equal to or a little less than the diameter of the eye. 

 Anal with 60 to 70 rays, touching the root of the caudal fin. Pectoral fin not quite 

 half the length of the head, the spine very slightly serrated on the outer border, three- 

 fifths (young) to two-thirds the length of the fin. Ventral fin shorter, equally distant 

 from the end of the snout and from the caudal fin, or a little nearer the former. Caudal 

 fin rounded, nearly half the length of the head. 



Dark olive-brown above, greyish beneath. 



Total length 430 millimetres. 



Measurements (in millimetres). 



Total length (without caudal) . . . 



Greatest depth 



Length of head 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Width of mouth 



Length of nasal barbel 



„ maxillary barbel 



,, inner mandibular barbel 



„ outer mandibular barbel 

 Length of pectoral fin 



,, „ spine 



375 



50 

 120 

 76 

 27 

 7 

 47 

 44 

 40 

 90 

 40 

 65 

 55 

 38 



280 

 35 

 86 

 56 

 18 

 6 

 34 

 34 

 43 

 77 

 50 

 65 

 43 

 29 



240 

 35 

 76 

 49 

 17 



H 



31 

 30 

 36 

 76 

 42 

 63 

 38 

 24 



115 

 18 

 31 



20 

 7 

 3 

 13 

 12 

 26 

 40 

 24 

 33 

 15 

 10 



Five specimens were obtained at Zegi, Lake Tsana, by Mr. E. Degen, on May 12th 

 and 22nd, 1902. 



The smooth head, combined with the high number of gill-rakers and of dorsal rays, 

 and the absence of a space between the anal and caudal fins, distinguish this species 



from its allies with granular vomerine teeth. 



