326 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
rear edge of maxillary not quite reaching to under front margin of 
eye; pelvics not quite reaching to the anus and the pectorals not 
reaching to base of pelvics; snout rounded. 
The most characteristic color mark is a single blackish oval spot, 
almost size of eye, at rear of caudal peduncle along midaxis covering 
the last three scales, but only the width of one scale along lateral 
line; tip of snout blackish; pigment over orbits more intense and on 
occiput; posterior margin of scales pigmented and those along lateral 
line intensely pigmented posteriorly but the lateral line divides this 
pigment into upper and lower spots to give the appearance of a double 
row of pigment spots along the lateral line; scales below lateral line 
not pigmented; a little black pigment at origin of dorsal and on some 
specimens the pigment is more distinct at each side of base of dorsal 
fin along the upper part of the back; base of anal fin with black pig- 
ment; some specimens show a black line along midaxis above lateral 
line; this fades posteriorly on caudal peduncle. 
Remarks —This new species differs from other species in the genus 
Barbus by having the large caudal spot in combination with 27 or 28 
scales in lateral line; 12 scales around the caudal peduncle, 10 or 11 
scales in front of the dorsal fin, among other characters. 
Named 60607 for one of the men who helped Dr. Mann collect fishes. 
BARBUS ABLABES (Bleeker) 
Puntius (Barbodes) ablabes BierKrr, Nat. Verh. Vet. Haarlem, vol. 18, No. 2, 
p. 114, pl. 23, fig. 1, 1863. 
Barbus ablabes STEINDACHNER, Notes Leyden, Mus., vol. 16, p. 79, 1894 (Hill Town, 
Liberia ).—BoULENGER, Cat. fresh-water fishes Africa, vol. 2, p. 156, 1911 
(Liberia). 
U.S.N.M. No. 118734 contains 10 specimens, 28 to 57 mm., collected 
at Bellyella, by Dr. W. M. Mann. 
BARBUS SPURRELLI Boulenger 
Barbus spurrelli BouLENGER, Proc. Zool. Soc. London, p. 51, pl. 3, fig. 1, 1918. 
U.S.N.M. No. 118735 contains 3 specimens, 32 to 55 mm., from 
Bellyella, collected by Dr. Mann. 
Family SILURIDAE 
ARTIFICIAL KEY TO THE SILURIDAE REPORTED FROM LIBERIA 
la. Dorsal and anal fins single, very long with articulated rays, but without 
spines; adipose dorsal absent; gill membranes free from the isthmus; eye 
with a free border; pectoral and pelvic fins present, well developed. 
2a. Dorsal rays 82 to 89; anal 63 to 77 (see table for fin ray counts) ; dorsal 
and anal fins not actually joined to the caudal but no free space between 
them; depth 8 in standard length, 9 in total length; maxillary barbel 
reaches almost to tip of pectoral fin; nasal barbel reaches to upper 
edge of gill opening; about 8 to 10 branchiae or branchial branches in 
the accessory. gill ‘chambers 22255 ee see Clarias salae Hubrecht 
