330 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
The following specimens have been examined : 
U.S.N.M. Nos. 48495-48498, 4 specimens, St. Pauls River, Mount Coffee, Liberia, 
Rolla P. Currie. 
U.S.N.M. No. 118771, 10 specimens, 94 to 140 mm., Gibi Mountain, W. M. 
Mann. 
U.S.N.M. No. 118772, 12 specimens, 86 to 210 mm., Bendaja, W. M. Mann. 
U.S.N.M. No. 118773, 25 specimens, 110 to 278 mm., Bromley, W. M. Mann. 
U.S.N.M. No. 118774, 24 specimens, 101 to 390 mm., Harbel, W. M. Mann. 
U.S.N.M. No. 118775, 3 specimens, 92 to 169 mm., Bellyella, W. M. Mann. 
M.C.Z., 1 specimen, 69 mm., Du Queah River, Liberia, July 1926, G. M. Allen. 
M.C.Z., 1 specimen, 182 mm., Gbanga, Liberia, Sept. 26, 1926, G. M. Allen. 
CLARIAS ANGOLENSIS Steindachner 
Clarias angolensis STEINDACHNER, Verh. Zool, Bot. Ges. Wien, vol. 16, p. 766, 
pl. 13, figs. 4, 7, 1866.—Fow ter, Proc. U. 8. Nat. Mus., vol. 56, p. 232, 1919 
(Monrovia). 
It is very probable that an error was made in counting the fin rays 
of this 98 mm.-specimen, unless the skin was dissected from one side 
of the median fins. The specimen should be reexamined, since no 
further counts on any species of Clarias from Liberia have given 74 
dorsal and 52 anal rays. Fowler’s 1919 specimen may be @. liberiensis. 
CLARIAS LIBERIENSIS Steindachner 
Clarias liberiensis STEINDACHNER, Notes Leyden Museum, vol. 16, p. 54, 1894 
(Buluma and Junk River).—BouLenger, Cat. fresh-water fishes Africa, vol. 
2, p. 258, fig. 214, 1911 (Liberia).—PELLEGRIN, Poiss. eaux douces Afr. Occid., 
p. 102, 1923 (Liberia).—NIcHoLs and LAMontr, Amer. Mus. Nov. No. 626, 
p. 2, 1933 (Kaleata, Liberia). 
Clarias bulwmae STEINDACHNER, Notes Leyden Mus. vol. 16, p. 55, 1894 (Buluma). 
The variation in fin ray counts of this and other closely related 
species probably is caused by inaccurate counts. It is positively neces- 
sary, except in rare cases, to dissect the skin from one side of the 
median fins in order to count the rays. Thus it is hkely that Clarias 
biittikoferi Steindachner is the same as C. liberiensis, and that 
Boulenger, 1911, p. 258, is in error in giving anal rays 44 or 45 when 
they actually are 48 to 55 on the Liberian material that I have studied. 
The following material has been examined : 
U.S.N.M. No. 118786, 3 specimens, 52-92 mm., Harbel, W. M. Mann. 
U.S.N.M. No. 118787, 2 specimens, 116 and 117 mm., Bendaja, W. M. Mann. 
U.S.N.M. No. 118788, 7 specimens, 69-91 mm., Gibi Mountain, W. M. Mann. 
M.C.Z., 1 specimen, 42 mm., little stream of clearing at Firestone No. 3 planta- 
tion, Liberia, July 1926, G. M. Allen. 
CLARIAS BUTTIKOFERI Steindachner 
Clarias biittikoferi STEINDACHNER, Notes Leyden Mus,, vol. 16, p. 53, 1894 (Buluma, 
Liberia )—BouLenerr, Cat. fresh-water fishes Africa, vol. 2, 261, 1911 (Li- 
beria ).—PELLEGRIN, Poiss. eaux douces Afr. Occid. p. 164, footnote, 1923 
(Liberia). 
