J20 



MOEMYEID.E. 



Upper profile of head descending in a strong curve; snout much 

 prolonged, tubiform, strongly compressed, curved dovpnwards, its length 

 twice postocular part of head, and 3 times its least depth, which is twice 

 diameter of eye ; latter f interorbital width ; lower jaw with a long, 

 compressed, attenuate dermal appendage, measuring nearly | length of 

 snout ; teeth conical, 3 in upper jaw, 4 in lower. Dorsal 34, originating 

 above 4th ray of anal, its length once and ^ in its distance from head. 

 Anal 35, equally distant from base of ventral and from base of caudal. 



Fig. 99. 



Giiathonemus mirus. 

 Type (A. M. C). i. 



Pectoral pointed, about f length of head, extending to middle of ventral, 

 which is only i as long. Caudal scaled, with obtusely pointed lobes. 

 Caudal peduncle 3 times as long as deep, f length of head. 78 scales 

 in lateral line, ^^ in transverse series on body, ^ in transverse series 

 between dorsal and anal, 12 round caudal peduncle. Brownish above. 



Total length 320 millim. 



Upper Congo (Upoto). — Type in Congo Museum, Tervueren, 



27. GNATHONEMUS ELEPHAS. 

 Bouleng. Ann. Mus. Congo, Zool. i. p. 12, pi. v. fig. 1 (1898), Proc. Zool. Soc. 



1898, p. 810, and Poiss. Bass. Congo, p. 104 (1901). 

 Campijlomormyi'us elephas, Pappenh. Mitth. Zool. Mus. Ber]. iii. 1907, p. 359 



pi. xii. figs. 4-6. 



Depth of body 3 to 4 times in total length, length of head 4 to 5 times. 

 Upper profile of head descending in a very strong curve ; snout much 

 prolonged, tubiform, strongly compressed, directed downwards, its length 

 exceeding postocular part of head, 3 to 4 times its least depth, which is 

 once and | diameter of eye ; lower jaw with a short, wart-like, cylindrical 



