NO. 2661 COPEPODS—-HUMES AND HO 11% 
of a seta) on the first segment of the endopod of leg 4 and the two 
unusually long terminal claws on the second antenna. 
Lichomolgus fissisetiger may be separated from L. varirostratus by 
the form of the rostrum, the presence of lateral spinules on the two 
long setae of the caudal rami, the form of the genital segment and 
lee 5 in the female, the long aesthetes on the first antenna of the 
male, and the structure of the two spines on the last segment of the 
endopod of leg 1 in the male. 
It may be distinguished from L. exilipes by the form of the genital 
segment and leg 5 in the female, the more unequal nature of the two 
claws on the second antenna, the lack of a blunt process on the inner 
margin of the mandible, the peculiar split seta on the second segment 
of the maxilliped in the male, and the long aesthetes on the first 
antenna of the male. 
From L. gentilis the new species may be distinguished by the 
form of the genital segment and leg 5 in the female, the pronounced 
constriction of the basal region of the mandible, the split seta on the 
second segment of the maxilliped in the male, and the long aesthetes 
on the first antenna of the male. 
Lichomolgus cuneipes, new species 
Figures 84-96 
TYPE MATERIAL.—39 99 and 18 oo" from a colony of Stereonephthya 
acaulis Verseveldt, in 1 m, off Ampombilava, Nosy Bé, Madagascar, 
collected Sept. 26, 1964. Holotype 9, allotype, and 46 paratypes 
(32 99 and 14 oc") deposited in the United States National Museum, 
and the remaining paratypes in the collection of A. G. Humes. 
OTHER SPECIMENS (all from Stereonephthya acaulis).—6 99 and 
3 oo from 1 colony, in 2 m, Ambafaho, Nosy Bé, Sept. 25, 1964; 
9 99 and 10 oo from 1 colony, in 10 m, Tany Kely, a small island 
south of Nosy Bé, Aug. 21, 1964; and 11 99 and 9 &'o from 1 colony, 
in 2 m, Andraikarekabe, Nosy Komba, near Nosy Bé, Oct. 9, 1964. 
FEmMALE.—Body (fig. 84) resembling that of L. fissisetiger. Length 
0.94 mm (0.89-0.98 mm) and greatest width 0.48 mm (0.45-0.49 mm), 
based on 10 specimens. Ratio of length to width of prosome 1.56:1. 
Segment of leg 5 measuring 654 x 138y. Between this segment 
and genital segment a small ventral intersegmental sclerite. Genital 
segment (fig. 85) about as long as wide, 1254 x 120y, in dorsal view 
with its lateral borders somewhat irregular. Areas of attachment 
of egg sacs located dorsolaterally in middle of segment. Each area 
(fig. 86) with 2 small naked setae about Sy long with a pointed 
sclerotized process between them. Three postgenital segments 26 x 
75u, 214 x 71p, and 26y x 71y from anterior to posterior. 
288-725—68——-3 
