308 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
6b. Mouth terminal, the chin a little enlarged; depth 314 to 414 times in 
standard length, and head 4% to 5 times; base of dorsal fin contained 
144 to 14% in base of anal fin. 
7a. Dorsal rays 29 to 33; anal about 36; scales about 84 or 85; 12 scales 
around caudal peduncle (after Boulenger). 
Gnathonemus mento (Boulenger) 
7b. Dorsal rays 27 or 28; anal 30 to 32; scales about 55 to 57; 12 scales 
around caudal peduncle (after Boulenger). 
Gnathonemus ussheri (Giinther) 
Genus MORMYRUS Linnaeus 
Mormyrus LInNAEvs, Systema naturae, ed. 10, p. 327, 1758. (Type: Mormyrus 
cyprinoides Linnaeus. ) 
MORMYRUS GOHEENI Fowler 
Mormyrus goheeni Fow er, Proc. U. 8. Nat. Mus., vol. 56, p. 234, fig. 7, 1919 (type 
and 4 paratypes from St. Pauls River, Liberia). 
The following specimens, from St. Pauls River, were collected by 
Rolla P. Currie: 
U.S.N.M. No. 48517 (holotype). 
U.S.N.M. Nos. 48514-48516, and 48518 (paratypes). 
Genus MORMYROPS Miller 
Mormyrops Miter, in Wiegmann’s Arch. Naturg., p. 324, 1843. (Type: Mor- 
myrus anguilloides G. St. Hilaire.) 
MORMYROPS BREVICEPS Steindachner 
Mormyrops breviceps STEINDACHNER, Notes Leyden Mus., vol. 16, p. 66, 1894 (St. 
Pauls River.) —BouLencER, Cat. fresh-water fishes Africa, vol. 1, p. 36, 1909 
(St. Pauls River).—PrELitecRin, Poiss. eaux douces Afr. Occid., p. 48, 1923 
(Liberia). 
U.S.N.M. No. 118805 contains 2 specimens, 159 and 195 mm., collected 
by Dr. Mann at Harbel. 
The following data from above-listed specimens: Dorsal rays 25 
and 26; anal 41; pectoral 10; scales 88 and 89; 16 scales around caudal 
LO ALY, 
TAT origin of dorsal over twelfth ray of anal. 
peduncle; teeth 
MORMYROPS DELICIOSUS (Leach) 
Oxyrhynchus deliciosus LEACH, in Tuckey, Exped. R. Zaire, p. 410, 1818. 
Mormyrops deliciosus HUBRECHT, Notes Leyden Mus., vol. 3, p. 170, 1881 (St. Pauls 
River).—STEINDACHNER, Notes Leyden Mus., vol. 16, p. 65, 1894 (St. Pauls 
River ).—BouLencer, Cat. fresh-water fishes Africa, vol. 1, p. 32, 1909 (West 
Africa).—Fow Ler, Proc. U. S. Nat. Mus., vol. 56, p. 234, 1919 (St. Pauls 
River). 
U.S.N.M. No. 48500 contains 1 specimen, 142 mm. standard length, 
from St. Pauls River at Mt. Coffee, collected by Rolla P. Currie. It 
