140 M0EMYEEDJE. 



with rounded or obtusely pointed lobes, densely scaled. Caudal peduncle 

 1| to 2 times as long as deep, f to | length of head. 85-100 scales 



*^3— 30 



in lateral line, ^r^g in transverse series on the body, 40-50 in transverse 

 series between dorsal and anal, 22-28 round caudal peduncle. Olive 

 above, whitish below. 



Total length 550 millim. 



Zambesi, Lakes Nyassa, Mweru, and Tanganyika. — Types in Berlin 

 Museum. 



1. 



Ad. 



Ohiromo, Shire R. 



C. B. C. Storey, Esq. (P.). 



■>_ 



-3. Ad. 



L. Nyassa. 



Capt. E. L. Rhoades (P.). 



4. 



Ad., skin. 



L. Mweru. 



Sir A. Sharpe (P.). 



5. 



Ad. 



Sumbu, L. Tanganyika. 



Dr. W. A. Cunnington (C.) 



13. MORMYRUS RUME. 

 Cuv. & Val. Hist. Poiss. xix. p. 248, pi. ccccclxix. (1846) ; Bouleng. Proc. Zool. 



Soc. 1898, p. 816. 

 Mormyrus juhelini, Cuv. & Val. t. c. p. 252 ; Bouleng. 1. c. 

 Mormyrus oxyrhynclius (non Greoffr.), Schilth. Tijdscbr. Nederl. Dierk. Ver. (2) 



iii. 1891, p. 84. 

 Mormyrus longirostns, part., Bouleng. Proc. Zool. Soc. 1898, p. 887, and Poiss. 



Bass. Congo, p. 112 (1901). 



Depth of body o\ to 5^ times in total length, length of head 4^ to 

 5 times. Upper profile of head descending in a straight line or feeble 

 curve ; snout produced, about as long as postocular part of head, its 

 length 2 (young) to 3 times its least depth ; mouth very small, with 

 thick lips ; teeth notched or truncate, 5 or 7 in upper jaw, 6 to 10 in 

 lower ; eye moderate, its diameter 1§ to 2 times in interorbital width. 

 Dorsal 78-91, originating considerably in advance of base of ventrals, 

 5 to 6^ times as long as anal. Anal 18-20, originating at nearly equal 

 distance from base of pectoral and from base of caudal. Pectoral 

 obtusely pointed, about § length of head ; ventral about \ length of 

 head. Caudal densely scaled, with obtusely pointed lobes. Caudal 

 peduncle 2 to 2^ times as long as deep, \ to f length of head. 103-118 

 scales in lateral line, ggEjjB m transverse series on body, 35-40 in trans- 

 verse series between dorsal and anal, 20-22 round caudal peduncle. 

 Olive or purplish brown above, white beneath. 



Total length 460 millim. 



Senegal to Congo and Chad Basin. — Types, in Paris Museum, 

 examined. 



