the Transvaal and NyasaJand. 317 



]\Ir. Carson at Fwambo, near Lake Tanganyika. The Mu- 

 stinn has recently received from Mr. Hinde an adult male 

 from Machakos (British East Africa). The carapace in this 

 example is iinrubbed, and shows a radial arrangement of 

 golden-yellow bands, not traceable in the original example. 

 I have also seen two female examples which I refer to this 

 species — one obtained by Mr. R. Crawshay at Kondiwe and 

 the other by Dr. Percy Kendall at Zombaj both in Nyasaland, 

 British Central Africa. 



Some of the differential features of the female are pointed 

 out in the accompanying synopsis of the known species of the 

 genus. Appended, however, are the measurements in milli- 

 metres of the female obtained by Mr. Crawshay : — 



Total length 37 ; length of carapace 21, width 16, length 

 from fovea to anterior border 13*5 ; length of patella, tibia, 

 and tarsus of palp 19 ; length of first leg 47, of second 41*5, 

 of third 35, of fourth 47; patella and tibia of first 17'8, of 

 fourth 16; protarsus of fourth 11. 



The example from Zomba is smaller; its carapace measuring 

 only 16 millim. is equal in length to the patella and tibia of 

 the first leg, but distinctly longer than those of the fourth, 

 which measure barely 15 millim. 



Pterinochilus nigro/iilvus, sp. n. 



(J . — Colour. Carapace black, with golden border and bands 

 radiating from the fovea ; legs covered with golden and black 

 hairs intermixed ; abdomen with golden-yellow or reddish 

 hairs; legs darker below; sternum and coxse deep chocolate- 

 brown. 



CarajJace convex, its width about three fourths of its length, 

 length almost equal to patella and tibia of first and fourth 

 legs, equal to protarsus and half the tarsus of fourth, scarcely 

 exceeding patella and tibia of second, slightly less than tarsus 

 and protarsus of third, about equal to patella, tibia, and tarsus 

 of palp ; its width much greater than tibia of fourth and equal 

 to protarsus and half the tarsus of first, much less than tibia of 

 first, and about equal to patella and tibia of third leg; ocular 

 tubercle subspherical ; clypeus wide, its width about one third 

 the length of the tubercle ; distance between lateral eye and 

 edge of clypeus greater than its long diameter. 



Legs 4, 1, 2, 3 ; patella and tibia of fourth and first sub- 

 equal ; patella and tibia of fourth distinctly greater than pro- 

 tarsus and tarsus of first; tibia of first of normal size, not so 

 wide as the femur, its width less than one third of its length, 

 the spur small ; protarsus straight, without spine. 



