MORMTEUS. 



133 



i to I length of head. 85-100 scales in lateral line, 2^30 "^^ transverse 

 series on body, 32-36 in transverse series between dorsal and anal, 12 or 

 14 round caudal peduncle. Bluish grey above, whitish below. 



Total length 500 millim. 



Congo. — Type in Congo Museum, Tervueren. 



1. Ad. Boma, Lower Congo. 



2. Hgr. Kutu, Lake Leopold IL 



3-4. Hgr. 

 5. Yg. 



Upper Cougo. 

 Banzyville, Ubangbi. 



M. P. Delhez (C). 



Brussels University. 

 Capt. Koyaux (C). 



6. MORMYRUS TAPIRUS. 



Pappeuh. Sitzb. Ges. naturf. Fr. Berl. 1905, p. 217, and Mittli. Zool. Mus. Berl. 

 iii. 1907, p. 362, pi. xiii. fig. 3. 



Depth of body nearly equal to length of head, 4 to 4^ times in total 

 length. Upper profile of head descending in a curve ; snout much pro- 

 duced, tubiform, slightly longer than postocular part of head, its length 

 about 4 times its least depth ; mouth very small, with thick lips, chin 

 rather produced ; teeth notched, 5 in upper jaw, 8 in lower; eye rather 

 large, J length of head, f interorbital width. Dorsal 65-67, originating 



Fig. 111. 



^ 



<-^^.V</ ,^'4„, 



Mormijrus tcijnrus. 

 Type. k. 



slightly in advance of base of ventrals, 2| times as long as anal. Anal 

 27-28, originating at equal distance from base of pectoral and from base 

 of caudal. Pectoral pointed, | length of head, reaching a little beyond 

 root of ventral ; latter about ^ length of head. Caudal scaled, with 

 pointed lobes. Caudal peduncle 3 times as long as deep, slightly longer 

 than postocular part of head. 95 scales in lateral line, 20 in transverse 



