New South African Trap-Door Spiders 303 
obtuse and bears a short spiniform process at its upper angle, the 
other process turgid, sharply conical at the apex ; patella armed with 
a couple of subsetiform spines at the apex below; tibia armed 
below with 4 external but no internal spines; metatarsus very dis- 
tinctly curved proximally (when seen from the side), concave also 
internally at the base and slightly incrassated internally at the end 
of the basal fourth, the eminence bearing one short spine and 3-4 
stout spiniform sete; distal part of metatarsus with 1-2 internal and 
3 infero-external spines; tarsus with 1 internal and 1-2 external 
spines. Second leg with 2-8 slender spines at the apex of the 
patella below ; the tibia with about 6 outer and 3 inner long slender 
spines below; metatarsus curved, with 1 internal and 2 external 
spines at the apex below and 3 others along the lower outer edge; 
tarsus with 1 inner and 3 outer short spines. Third leg with a band 
of short spinules along upper anterior edge of patella, only 1 or 2 
of the distal stout spinules overhanging the distal edge, the posterior 
upper distal edge with 2-3 stout spinules; tibia with 7-9 short 
spinules along anterior upper edge, 1 on posterior surface and several 
slender spines or spiniform sete on inferior surface; metatarsus 
slightly curved, with a number of spines below and several at the 
sides; tarsus with several spinules in front and behind. Fourth leg 
with a band of spinules along anterior upper edge of patella from 
the ibase to a little beyond the middle; tibia-with setiform spines 
below; metatarsus slightly curved, with setiform spines below, 
including 3 at the apex; tarsus with 2 posterior and several anterior 
spines. All the tarsi scopulate below. Metatarsi not scopulate. 
Sternum with 2 pairs of small sagilla opposite the bases of the 
legs of the first and second pairs. 
Measurements.—Total length 11; length of carapace 43, width 4; 
length of tibia of first leg 3-6. 
Related to A. thorella (Cambr.), but in the latter the area formed 
by the anterior median and lateral eyes is wider behind than in 
front. 
2. ACANTHODON KOLBEI Nn. sp. 
Types: 29 from the Kentani District in the Transkei, Cape 
Colony (No. 4043, Dr. F’. C. Kolbe). 
?. Colowr.—Carapace yellowish brown; cheliceree dark brown ; 
pedipalps and the 2 anterior pairs of legs brown, the 2 posterior pairs 
yellowish brown to brownish yellow ; sternum brownish yellow, darker 
at the lateral and posterior margins; the labium and the coxe of the 
pedipalps brown, the coxe of posterior legs pale yellowish, those of 
anterior legs brownish yellow; abdomen pale yellowish, with black 
