304 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Genus POLYPTERUS Lacepéde 
Polypterus LACEPEDE, Hist. Nat. Poiss., vol. 5, p. 340, 1808. 
POLYPTERUS PALMAS Ayres 
Polypterus palmas AYERS, Proc. Bost. Soc. Nat. Hist., vol. 3, p. 181, 1850.— 
STEINDACHNER, Notes Leyden Mus., vol. 16, p. 92, 1894 (Fischermann See; 
Junk and Sulymah Rivers; Buluma; Mahfa River).—BouLencer, Cat. fresh- 
water fishes Africa, vol. 1, p. 16, 1909 (Liberia).—PrtiEecrin, Poiss. Afr. 
Occid., p. 37, 1923 (Liberia). 
Polypterus biittikoferi STEINDACHNER, Notes Leyden Mus., vol. 13, p. 179, 1891 | 
(Mahfa and Sulymah Rivers, Liberia). | 
The following specimens were collected by Dr. Wm. M. Mann: 
U.S.N.M. No. 118747, 2 specimens, 125 and 132 mm., Bendaja. 
U.S.N.M. No. 118748, 1 specimen, 213 mm., Gibi Mountain. 
POLYPTERUS LOWEI Boulenger 
Polypterus lowei BouteNcER, Ann. Mag. Nat. Hist., ser. 8, vol. 7, p. 377, 1911 
(Nanna Kru, Liberia).—BouLEeNnceEr, Cat. fresh-water fishes Africa, vol. 4, 
p. 151, fig. 102, 1916 (Nanna Kru, Liberia).—PELLEGRIN, Poiss. Afr. Occid. 
p. 87, 1923 (Liberia). 
This species may be the same as P. palmas, since my counts are inter- 
mediate between palmas and lowed. 
Family CLUPEIDAE 
I am not able to identify “Clupea senegalensis (sp. Benn. C. V.) 
Gthr” listed by Steindachner ** with any fresh-water clupeids from 
Liberia. 
Genus PELLONULA Giinther 
Pellonula GUNTHER, Cat. Fish. British Mus., vol. 7, p. 452, 1868. 
PELLONULA VORAX Giinther 
Fellonula vorax GUNTHER, Cat. Fish. British Mus., vol. 7, p. 452, 1868.—Srern- 
DACHNER, Notes Leyden Mus., vol. 16, p. 83, 1894 (Robertsport). 
Although the 2 specimens, U.S.N.M. No. 118733, measuring 67.2 and 
91.5 mm. standard length, collected by Dr. Mann at Harbel, are re- 
ferred to P. vorax, they may represent a new subspecies, but the lack 
of comparative material causes me to hesitate to describe them at this 
time. The chief distinction between voraa and these two specimens is | 
the position of the anal, farther back, its origin 14 the length of anal 
base behind base of last dorsal ray. 
I give the following detailed description of the above 2 specimens | 
from Harbel. All measurements are expressed in hundredths of the | 
standard length, 91.5 and 67.2 mm., respectively. 
*1 Notes Leyden Mus., vol. 16, p. 81, 1894. 
