216 Journal of the Asiatic Society of Bengal. [June, 1913. 
The above short diagnosis serves | believe to define this 
species from others of Cyphoderus. As usual in this genus 
there is no trace of eyes. The four segments of the feeler (fig. 1) 
have approximately the proportional lengths, 1:3:2:5. I 
one specimen, one of the feelers has only three segments, the 
second of these being three-quarters as long as the terminal 
(fig. 2). The foot is remarkable for the replacement of the usual 
clubbed tenent hair by a slender tapering bristle. In connec- 
tion with the base of the foot-claw there is a small anterior — 
tooth-like outgrowth (fig. 3, 4, 5) in addition to the prominent 
inder one, which characterises this genus generally (fig. 3, 
4, a). The lamella of the claw has no teeth. The empodial 
appendage or ‘‘inferior claw’’ has the three characteristic 
lamellae very distinct, the inwardly and forwardly directed one 
(fig. 3, 4, c) being pointed and leaf-like. The fourth abdomi- 
nal segment is four and a half times as long as the third. The 
dens of the spring (figs. 1, 5) has six pairs of rather narrow 
scales (fig. 5d), arranged along the two sides of its dorsal or 
hinder edge, and a large broad scale (fig. 5e) inserted close to 
the base of the mucro. The latter structure (fig. 5m) has 
three prominent teeth, one terminal, which is slightly hooked, 
and two dorsal. 
the presence of three teeth on the mucro, C. genneserae 
differs from the European species C’. albinus, Nic., and from the 
B C. simulans, Imms (1, pp. 115-6, pl. xii, figs. 90, 91), 
dition to the three teet 
dorsal tooth. 
In both these Sudanese species, however, the lamella of 
the foot-claw is conspicuously toothed, and the large scales on 
the many well-known corres 
pondences between the flora and fauna of the Jordan valley 
and those of tropical Africa. 
LITERATURE. 
(1) A. D. Imms. On some Collembola from India, Burma, 
Bas Pee Proc. Zool. Soc Lond., 1912, pp. 80-125, pls. 
—_ i i : x 
(2) EB. Wahlgren. 
Sudan. Results of th 
and the White Nile, | 
Apterygoten aus Aegypten und dem 
e Swedish Zoological Expedition to Egypt 
901, no. 15, Uppsala, 1906. 
