320 Mr. R. I. Pocock on new Genera 
b'. Median eyes smaller; inferior caudal keels re- 
tained. 
a’, Carapace and palpi not so flat ; hand coarsely 
reticulated above; femora of legs granular 
externally 2645... Meiners s ait erate validus (Thor.). 
6?. Carapace and palpi flatter; hand smooth and 
only finely reticulated above; femora ex- 
fernally smoothes cn sess isa meynets levipes, sp. . 
CHIROMACHUS, gen. nov. (PI. XIV. fig. 4.) 
Allied to Opisthacanthus and Opisthocentrus, but with the 
lower surface of the fect studded irregularly behind with long 
stiff setae; the series of sete diverging and becoming regularly 
arranged upon each side of the socket for the inferior claw. 
In Opisthacanthus and Opisthocentrus the feet are armed 
below with two distally diverging series of spines. 
Type, C. ochropus (C. Koch}, of which the synonymy is, I 
believe, as follows :— 
Chiromachus ochropus (C. Koch). 
Ischnurus ochropus, C. Koch, Die Arachn. iv. p. 69 (1888), ¢. 
Ischnurus asper and chrysopus, Peters, Mon. Ak. Wiss. Berlin, 1861, 
pp. 513-514, 9. 
This species appears to be an East-African form. The 
British Museum has six examples from Zanzibar, two with- 
out any history, and one which was brought from Round 
Island, near Mauritius, by Sir Henry Barkly. 
JoMACHUS, gen. nov. (Pl. XIV. figs. 5 and 6.) 
Allied to Hormurus, but differing in having the lower sur- 
face of the feet compressed and armed with a single series of 
spiniform teeth. ‘The lateral setee, which are characteristic of 
the feet in Hormurus, are fewer in number. 
Type, Hormurus leviceps (Pocock), from 8. India. 
Subfamily Uropacrnr. 
Genus Uropacus, Peters. 
Urodacus, Peters, Mon, Ak. Wiss. Berlin, 1861, p. 511. 
Iodacus, Pocock, Ann. Mag. Nat, Hist. (6) viii. p. 245. 
Since establishing the genus Jodacus, I have found that 
the characters upon which it was based, namely, the longer 
sternum and flat hand, can scarcely be regarded as of generic 
importance, for an examination of recently received speci- 
mens of U. nove-hollandie has shown that the length of the 
sternum is liable to considerable variation, and the new Uro- 
