New Arachnida. 29 



Posterior sternal sagilla moderate, oval, their distance apart being 

 at least equal to the width of the labium and aboat twice their own 

 length, which slightly exceeds or is subequal to their distance from 

 the lateral margin of sternum. 



Measurements. Total length 9, length of carapace 3f . 



This is the second South African species of the genus recorded. 

 It was found under a stone. 



CYETAUCHENIUS DENTATUS, n. sp. 



Types. 4 ? ? (Nos. 9-118, 9511, 9515) from Hanover (October, 

 November), all of about the same size and apparently adult. They 

 were dug up from trap-door nests. 



? ? . Colour. Carapace yellowish brown, sometimes tinged 

 with olivaceous, the cephalic portion darker brown at the sides 

 and behind but without dark median band, the thoracic portion with 

 a white insertion on each side posteriorly ; chelicerae dark brown, 

 sometimes olive-brown ; legs pale ochraceous, the femora greenish 

 yellow; abdomen pale yellowish, the dorsal surface with large, 

 median, dark purplish area, which is broadest in front but does not 

 reach hind end, the posterior end also purplish round the spinners ; 

 sternum and coxae pale ochraceous, the coxae of pedipalps, and often 

 also the anterior and lateral part of sternum, brown. 



Carapace as long as the patella, tibia, and -J-i of the metatarsus of 

 first leg, and equal to or exceeding (by about \ of the tarsus) the 

 tibia and metatarsus of fourth leg. Ocular area nearly 2^ times as 

 wide as long, very distinctly or only slightly wider behind than in 

 front, the hind margin of the anterior row forming a nearly straight 

 to very distinctly procurved line, the anterior margins of the 

 posterior row forming a very distinctly recurved line ; posterior 

 lateral eyes larger than the anterior medians but smaller than the 

 anterior laterals, their distance from the latter f or at least over -J- of 

 their own length and equal to or slightly exceeding their distance 

 from the posterior median eyes, which are round or squarish, 

 slightly larger or smaller than the anterior medians and equally 

 remote (by ^ or a whole diameter) from them and from the posterior 

 laterals. 



Legs, Tarsi I and II thickly scopulate, I not spined, II with 1-2 

 external spines below, III with 2-7 stout spines in the posterior 

 dorsal row. Metatarsi I and II scopulate to the base on each side, 

 the scopula absent along the middle below in the proximal part, 

 especially in II ; I and II with 2-3 apical (the inner one sometimes 



