Annals of the Transvaal Museum. 
185 
Acanthodon monticola, sp. nov. (Text fig. 5.) 
Types. — Three adult male specimens from Magaliesberg, Little 
Wonderboom, collected by Messrs. A. Roberts and G. van Dam (6th and 
14th June, 1915). Female specimens were taken in the same locality, and 
also more recently at Daspoort by Mr. A. Roberts. 
Chelicerae with 5 or 6 teeth in the inner row on the fang groove and 3 
or 4 small ones in the outer row. Rastellum composed of 3 very stout 
.short spines on the anterior margin of the basal joint. 
Pedipalps. — Tarsus with 2 or 3 spines at its apex superiorly. The 
spines margining the excavation of the tibia on its outer side do not form 
a continuous semicircular band, the strip being interrupted in the middle 
(see fig.). 
Legs. — Coxa III with some short stifflsh setae on its post-ventral 
margin in the basal half especially, but these setae are not numerous nor 
the group, as a whole, very conspicuous. Tarsus I without spines or only 
Acamthodon monticola , sp. nov. Pedipalp of male. 
1 weak one on the anterior side. All the tarsi are scopulate, the scopula 
of IY without fine spiniform setae in its course. Claws of tarsus I with 
2-5 moderate-sized teeth, of IY with 1-4 teeth, but when 3 or 4 teeth are 
present only 1 is of large size. Tibia I subequal to or only very slightly 
longer than metatarsus I. Metatarsus I only slightly bowed. Patella III 
with about 10-14 spines anteriorly, including those on the distal edge, 
also about 5 on the dorsal surface, including those at the apex. 
Patella IY with 9-13 spines on its anterior surface in the basal half of the 
segment. 
Ocular arm.— Posterior median eyes about 1J diameters or a trifle 
more apart, only J a diameter or a trifle moie distant from the posterior 
laterals. Anterior medians rather less than \ a diameter apart. Area 
formed by frontal and anterior median eyes quite as broad bahind as in 
front. Yiewed from in front the frontals are separated by a distance 
-equal to about the diameter of an eye ; in one example rather more than 
the diameter of an eye. 
Sternum. — Three pairs of sigilla, the first pair marginal 
Total length 9 mm. ; length of carapace 3. 
