510 MR. R. I. pococK OX Tiu: AEACUNiDS COLLECTED [June 21, 



Head strongly elevated, convex from before backwards and 

 from side to side. Ocular quadrangle much wider in front than 

 behind ; the anterior median eyes much larger than the posterior 

 median and more widely separated, distance between posterior 

 medians barely equal to their radius, distance between anterior 

 medians nearly equal to their diameter, distance between anterior 

 and posterior medians about equal to diameter of anterior ; eyes of 

 anterior line slightly procurved when vie\Aed from the front, the 

 centres of the medians about on a level with the upper edge of 

 laterals, which are about their own diameter above the edge of the 

 clypeus. 



Mandibles armed with three posterior and three anterior teeth. 

 Spines on legs few in number and black. 



Abdomen voluminous, I'ounded, without shoulder-points, a little 

 wider than long, widely rounded, not pointed posteriorly. Vvlva 

 when viewed from below forming a pair of pit-like depressions 

 separated in the middle line by the scape, which, broad and wrinkled 

 at the base, passes backwards, then takes an abrupt curve, the apical 

 piece being bent at right angles to the basal portion. 



Measurements in millimetres. — Total length 11 ; length of abdomen 

 8-5, width 9. 



Loc. Taru. 

 • The Museum has also received this species from the following 

 localities in East Africa : — Karagesi (Emin Pasha) ; Mombasa 

 ■( W. E. Taylor) ; Leikipia {J. W. Gregory). The specimen selected 

 as the type is one of those from Karagesi. 



In form and colouring, especially of the abdomen, this species 

 closely resembles the Australian species Epeira albida of L. Koch 

 (Die Arachniden Austral, i. p. 83, pi. vii. tig. 2), M-ith which Epeira 

 locujjJes of Butler (P. Z. S. 1879, p. 732, pi. Iviii. fig. 2) from 

 •Madagascar is apparently identical. The form of the vulva in 

 A. eresifrons is, however, quite different from that of aJbidus, and 

 the latter has not the strongly elevated head characteristic of the 

 former. 



According to Simon's divisions of the genus Araneus this species 

 falls into Section 3, except that the anterior line of eyes is slightly 

 procurved rather than recurved. 



Araneus bbttoni, sp. n. (Plate XLI. figs. 4, 4 a.) 



Colour. Carapace mahogany-red, black at the sides and on the 

 face, clothed with white hairs ; mandibles yellow in front at base, 

 black at; apex and along their outer surface ; palpi ochre-yellow, 

 with patella, tibia, and tarsus infuscate distally ; legs variegated, 

 femora mostly black, those of the 3rd and 4th legs with two yellow 

 rings, one basal, the other ^ubmediau ; of the 1st less distinctly annu- 

 late, reddish below and internally ; patella black below, reddish 

 brown above ; tibiae yellowish red, blackish at apex, that of 2nd leg 

 also with a broad black basal patch below ; protarsi yellow, black at 

 apex ; abdomen deep blackish brown above, with broad paler band 

 along middle line ; sides of abdomen lighter than upper surface, 



