MOEMYRUS. 139 



scales. Caudal peduncle a little more than once and ^ as long as deep, 

 its length a little less than \ that of head. 130 scales in lateral line, 

 ^ in transverse series on body, 24 round caudal peduncle. Slate -grey 

 above, white beneath. 



Total length 360 millim. 



Uelle River, Congo. — Type in Paris Museum. 



12. MORMYRUS LONGIROSTRIS. 



Peters, Mon. Berl. Ac. 185'^, p. 275 ; Gunth. Cat. Fish. vi. p. 216 (1866) ; 



Peters, Reise Mossamb. iv. p. 83, pi. xvi. fig. 2 (1868) ; Bouleng. Tr. 



Zool. Soc. xvii. 1906, p. 546 ; Pap[)enh. Mitth. Zool. Mus. Berl. iii. 1907, 



p. 362. 

 Mormyrus mucupe, Peters, tt. cc. pp. 275, 87, pi. xvi. fig. 1 ; Giinth. t. c. p. 215. 

 Mormyrus longirostris, part., Bouleng. Proc. Zool. Soc. 1898, p. 817, and Poiss. 



Bass. Congo, p. 112 (1901). 



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

 times. Head 1^ to If times as long as deep, with curved or nearly 

 straight descending upper profile ; snout produced, as long as or a little 

 shorter than postocular part of head, its length 2 to o^ times its least 

 depth ; mouth very small, lower jaw slightly projecting ; teeth small, 



Fig. 115. 





.-' _ _^^,»i^^iiii^i^ 





Mormyrus longirostris. 

 Tjpe, after Peters (Eeise Mossamb.). ^. 



notched, 5 or 7 in upper jaw, 8 to 12 in lower; eye moderate, 

 its diameter about 1^ times in interorbital width. Dorsal 65-75, 

 originating in advance of ventral, 4 to t>\ times as long as anal, 1^ to 1^ 

 times as long as its distance from end of snout. Anal 17-19, originating 

 at nearly equal distance from base of pectoral and from of base caudal. 

 Pectoral obtusely pointed, ^ to f length of head, ventral \ to \. Caudal 



