Genera and Species of Trapdoor Spiders. 195 
claws furnished with two rows of teeth, the posterior tarsi 
hairy and not spined, and the space between the lateral eyes 
narrow. ‘Tarsal claw*obsolete on the legs of the first pair, 
distinct on the others. Maxille armed basally on the inner 
side with a cluster of spinules. The posterior sternal im- 
pressions, @. e. those corresponding to the legs of the third 
pair, elongated, large, about twice as far from each other as 
from the lateral margin; the impressions opposite the second 
legs small, but removed from the margin. 
Clypeus narrow, but vertical. yes not raised on a 
tubercle ; the ocular area large and transverse ; anterior line of 
eyes slightly procurved; lateral eyes larger than anterior 
median. Fovea deep, transverse. 
Mandibles without anterior angular prominence ; the margin 
above the base of the fang armed with a thick cluster of 
setiform spines, without the thick spines observable in 
Nemesia; tang long, distinctly geniculate at the base. 
Type Nemesia tubifex, Poc. Tr. Linn. Soe., Zool. v. pt. 3, 
pp. 112, 113, pl. xii. fig. 2, from Gulran. 
According to Dr. Aitchison this species does not close the 
aperture of its burrow with a movable lid. In this particular 
it differs from all the known species of Nemesia. 
Genus AcTINopUS, Perty. 
Actinopus Hartt, sp. n. 
Colour. Carapace greenish chestnut, mandibles rather 
darker ; abdomen greyish black above, pale at the sides and 
below ; femora of legs and palpi the same colour as the cara- 
pace ; the rest of the segments clear yellowish red; sternum 
and cox pale yellow; maxilla and labium reddish brown. 
Eyes apparently as in A, scalops of Simon, the anterior and 
posterior rows equal in width; the anterior row almost straight, 
with a slight procurvature; posterior row recurved; eyes of 
the latter row close together, the median subequal to or a 
little smaller than the lateral; anterior lateral larger than 
median and separated from the edge of the clypeus by a space 
which evidently exceeds their diameter; median eyes sepa- 
rated from each other by a space which about equals their 
diameter, and from the laterals by a space about four times as 
reat. 
Mandibles smooth above externally, hairy internally ; hairs 
stouter above the base of the fang; the apical process (ras- 
tellum) long, more than a third of the length of the fang, 
studded with blunt short processes, which are longer on its 
inner edge at the apex ; fang stout, four-sided, striate ; lower 
