MOEMTKOPS. ^ 45 



5 times. Hoacl once and | to nearly twice as long as deep, with straight 

 or slightly concave upper profile ; snout rounded, jaws equal ; width 

 of mouth a little less than length of snout; teeth truncate, 14 to 20 

 in each jaw ; eye very small, in anterior third of head, its diameter 

 3 or 4 times in length of snout, 2^ to SJ times in interocular width. 

 ])orsal 34-39, | to | length of anal, originating at equal distance from 

 head and from base of caudal, or a little nearer latt(^r. Anal 47-59, 



r-^^^-^-^-s-; 





gSi/s^^ J'- 



Mormyro2'>s maria\ 

 Type. A 



originating in advance of dorsal (8th to 11th ray corresponding to first 

 dorsal), and much nearer base of caudal than end of snout. Pectoral 

 rounded, ^ length of head. Caudal very small, scaled at the base, with 

 rounded lobes. Caudal peduncle not longer than deep, y to J length of 

 head. 100-106 scales in lateral line, 7;^^ in transverse series on body, 

 28-31 in transverse series between dorsal and anal, 22-24 round caudal 

 peduncle. Pale purplish, uniform or finely speckled with brown. 



Total length 390 millim. 



Congo. 



1-2. Hgr. Matatli, Lower Congo. Capt. Wilvertli (C). 



3. Ad. Boma, „ M. P. Delhez (C). 



4. Hgr., type. Kinshassa, Stanley Pool. M. A. Greshoff ((J.). 



16. MORMYROPS ATTEXUATUS. 



Bouleng. Ann. Mns. Congo, Zool. i. p. 6, pi. i. fig. 4 (1808), Proc. Zool. Soc. 1898, 

 p. 78(), Poiss. ras-=. Congo, p. G8 (1901), and Ann. & Mag. N. H. (7) xvi. 

 1905, p. 611. 



Depth of body 8 to 8^ times in total length, length of head 5J to 

 GJ times. Head nearly twice as long as deep, upper profile straight, 

 declivous ; snout rounded, projecting a little beyond mouth ; width 

 of mouth I length of snout ; teeth truncate, ^ ; eye small, in anterior 

 third of head, its diameter 2^ times in length of snout or interocular 

 width. Dorsal 41-43, | length of anal, originating a little nearer base 



