MOKMTRUS. 



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, 

 jp 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. 1852, p. 275 ; Gunth, Oat. Fish. vi. p. 216 (1866) ; 

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

 Zool. Soc. xvii. 1906, p. 546 ; Pappenh. Mittb. Zool. Mus. Berl. iii. 1907, 



p. 362. 

 Mormyrus mucupe, Peters, tt. cc. pp. 275, 87, pi. xvi. fig. 1 ; Gunth. t. c. p. 2] 5. 

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



Bass. Congo, p. 112 (1901). 

 Depth of body 3| to 5 times in total length, length of head 3| to i\ 

 times. Head \\ 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 %\ times its least 

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



Fig. 115. 



Mormyrus longirostris. 

 Type, after Peters (Eeise Mossamb.). £. 



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

 its diameter about T| times in interorbital width. Dorsal 65-75, 

 originating in advance of ventral, 4 to 5-j 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, ^ tof length of head, ventral j to \. Caudal 



