336 PROCEEDINGS OF THE NATIONAL MUSEUM you. 92 
The following specimens have been examined : 
U.S.N.M. No. 118846, 2 specimens, 32 and 35 mm., Bromley, Dr. W. M. Mann. 
M.C.Z., 20 specimens, 17 to 40 mm., Du River, Liberia, Firestone No. 3 Planta- 
tion, July 1926, G. M. Allen. 
APHYOSEMION CALLIURUS (Boulenger) 
Haplochilus calliurus BOULENGER, Ann. Mag. Nat. Hist., ser. 8, vol. 8, p. 265, 1911 
(types from Liberia).—Boutencrr, Cat. fresh-water fishes Africa, vol. 3, p. 
59, fig. 45, ¢ and @ types, 1915 (Liberia).—PELLEGRIN, Poiss. eaux douces 
Afr. Occid., p. 233, 1928 (Liberia). 
Genus MICROPANCHAX Myers 
Micropanchaz Myers, Copeia, No. 129, p. 42, 1924. (Type: Haplochilus schoelleri 
Boulenger. ) 
MICROPANCHAX MACRURUS MANNI, new subspecies 
PLATE 36, FIGURE 4 
Holotype —U.S.N.M. No. 118851, 20.3 mm. standard length (total 
length 28.3 mm.), collected by Dr. W. M. Mann at Harbel, Liberia. 
Paratypes —U.S.N.M. No. 118852, 4 specimens, 15.0 to 21.5 mm. 
standard length, same collection data as holotype. 
Description.—Based on the holotype and 4 paratypes. AIl measure- 
ments are expressed in hundredths of the standard length, those for 
the holotype first, then followed by those for the paratypes in paren- 
theses, respectively. Standard lengths (in mm.) 20.8 (18.5; 21.5; 17.0) 
and total lengths (in mm.) 28.3 (24.53; 28.6; 23.3); greatest depth of 
body 26.1 (25.4; 23.7; 24.6); length of head 29.5 (28.6; 27.9; 28.2) ; 
diameter of eye 13.3 (12.4; 12.6; 11.8); width of bony interorbital 
space 14.3 (11.9; 12.1; 13.5) ; length of snout 7.4 (6.5; 7.0; 7.6) ; length 
of caudal peduncle or distance from base of last anal ray to base of 
midcaudal fin rays 28.1 (46.5; 25.1; 27.7); least depth of caudal pe- 
duncle 16.7 (15.1; 15.8; 17.1); length of postorbital part of head 10.3 
(9.7; 9.8; 10.0); length of base of anal fin 15.8 (13.0; 16.3; 15.9) ; 
length of base of dorsal fin 7.9 (8.1; 8.8; 9.4); distance from tip of 
snout to origin of dorsal fin 65.5 (69.2; 68.4; 65.9) ; snout to origin of 
anal fin 63.1 (62.2; 61.4; 58.3); snout to insertion of pelvic fins 42.2 
(42.2; 41.4; 41.8) ; snout to insertion of pectoral fins 29.1 (27.6; 28.4; 
31.2) ; length of longest ray of pelvic fins 21.6 (—; 16.3; 18.8) ; length 
of longest ray of pectorals 29.5 (—;—;—). 
The following counts were made: Dorsal rays 7 (7; 7; 7) ; anal rays 
10 (105 11s 11) pectoral rays 10 (11; 11; 11): pelvic rays'G (6.°6-16)" 
number of scale rows from upper edge of gill opening to base of caudal 
fin 23 (22; 23; 23); number of scales around body at origin of dorsal 
fin 18 (18; 18; 14); number of scales around caudal peduncle 12 
(a ss Gea 2) 
