FRESH-WATER FISHES OF LIBERIA—SCHULTZ ook 
Genotype-—Mannichthys lucileae, new species. Characters of the 
genus are those of the new species described below. 
Named Mannichthys in honor of Dr. William Mann who helped 
collect the material on which this genus is based. 
MANNICHTHYS LUCILEAE, new species 
PLATE 35, FIGuRE 3 
Holotype—U.5S.N.M. No. 118746, 60.3 mm. standard length, collected 
near Bromley by Dr. Mann. 
Paratypes.—U.S.N.M. No. 118744, 51 specimens, from 34 to 62 mm., 
were collected with the type and bear the same data; U. S. N. M. 
No. 118745, 38 specimens, 28 to 57 mm. standard length, were collected 
by Dr. Mann on Gibi Mountain; U. S. N. M. 50961, 4 specimens, 
40 to 50 mm., from the Gold Coast, Africa. 
Description—This description is based on the holotype and 93 
paratypes from Liberia and the Gold Coast. AJl measurements are 
expressed in hundredths of the standard length, those for the holo- 
type are given first, followed by a paratype. Total length in mm. 
76.7 and 65; standard length in mm. 60.3 and 52. Length of head 
27.9; 27.9; length of snout 9.5; 8.85; greatest depth of body 29.4; 28.9; 
diameter of eye 9.5; 9.6; width of fleshy interorbital space 10.3; 
10.8; postorbital length of head 12.8; 11.7; least preorbital or distance 
from eye to lower edge of preorbital 4.0; 3.3; distance from tip of 
snout to rear of maxillary 7.8; 7.9; length of anterior barbel 6.8; 6.55; 
length of posterior barbel 9.13; 7.5; length of caudal peduncle or 
distance from rear base of last anal ray to midbase of caudal rays 
29.4; 20.2; least depth of caudal peduncle 13.3; 12.7; distance from 
snout to origin of dorsal 49.2; 49.0; snout to origin of anal 76.3; 
74.8; snout to insertion of pelvics 51.1; 50.4; length of longest ray of 
dorsal 28.4; 26.9; length of longest ray of pelvic 20.7; 20.2; longest 
ray of pectoral 21.6; 20.2; longest ray of anal 18.2; 17.7; longest 
ray of caudal 29.9; —. 
The following counts were made: Gill rakers on one paratype 
2+5; scale rows crossing lateral line 23; 24; 22; 23; 22; 23; 29 and 22; 
scales above lateral line always 314, and below lateral line (pelvic 
insertion or anal origin) always 214; scales around caudal peduncle 
always 10; scales in front of dorsal 8; 8; 8; 8; 8; 8; 9; 9; dorsal 
rays always 111, 8, and anal always i), 5; pectoral fin rays 16; 15; 15; 
16; 16; 16; pelvics always with 8 rays. Pharyngeal teeth 5:3:2- 
2:3:5t04:3:22:3:4. 
Below the suborbital bones on lower half of snout and on cheeks 
are vertical rows of tiny pores or papillae somewhat raised above the 
general level of the skin; on the lower part of the snout above the 
