Moiairuus. 



139 



scales. Caudal podnnclc a little more than once and | as long as deep, 

 its len^tii a little less than -J that of head. 130 scales in lateral line, 

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

 above, white beneath. 



Total length odd milliui. 



Uelle River, Congo. — ry[>'' iu Paris Museum. 



12. MORMYRUS LONGIROSTRIS. 

 roters, ]\Ion. Borl. Ac. 185'^, p. 27.') ; Guntli. Cat. Fish. vi. )>. 21G (18G6) ; 



Peters, Reise Mossamb. iv. p. 8:5, pi. xvi. fig. 2 (18G8) ; Bouleng. Tr. 



Zool. Soc. xvii. VJOG, p. 54G ; rappenli. Mitth. Zool. Mus. Borl. iii. 1907, 



p. 302. 

 Movmyrus miicupe, Peters, tt. cc. j)p. 275, 87, pi. xvi. fig. 1 ; Giinth. t. c. p. 215. 

 Mormijrvs longirostris, ])art., Bouleng. Proc. Zool. Soc. 1898, p. 817, auJ Poiss. 



Bass. Congo, p. 112 (1901). 



Depth of body 3| 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 ui)per 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, 



Fi<r. 115. 



-•'^S<!at^K^^.^ 



Mormyrus Ivwjirostris. 

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



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

 Its diameter about IJ times in interorbital width. Dorsal 65-75, 

 originating in advance of ventral, 4 to 5^ 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, J to J length of head, ventral J to \. Caudal 



