Regions of Lakes Nyasa and Tanganyika. 445 



Thomisus antliobius, Pocock. 



Thomisus atdhobius, Pocock, Ann. & Mag. Nat. Hist. (7) ii. p. 225, 

 pi. viii. fig. 18. 



Loc. Nyika plateau, 6000-7000 feet. 



Eecorded from Estcourt, Natal, 4000 feet (A. Whyte). 



Genus Platythomisus, Thorell. 

 Platythomisus pantherinus, sp. n. (PI. XIII. fig. 7.) 



Colour. Carapace orange-yellow, ornamented with six black 

 patches, one on each side of the face involving the four eyes 

 and extending to the edge of the clypeus, one smaller on each 

 side on the margin opposite the base of the first leg, and one 

 on each side of the dorsal middle line about the same distance 

 from each other as from] the. lateral edge of the carapace ; 

 mandibles orange-yellow, with a black ring round the base of 

 the fang ; legs of first and second pairs with femora and 

 patella? lemon-yellow, tibia?, protarsi, and tarsi jet-black, 

 except the base of the tibia, which is yellow, with a faint yellow 

 spot on outer side of the apex ; legs of third and fourth pairs 

 with tarsi and protarsi and a narrow strip at the apex of the 

 tibia black, the rest lemon-yellow ; abdomen lemon-yellow, 

 with the spinning-mam ilia black, and seven small black spots 

 on the sigilla of the dorsal surface, the anterior spot unpaired, 

 those of the third and posterior pair small, of the second pair 

 the largest. 



Carapace shining, coriaceous, cephalic region sloped down- 

 wards ; clypeus not vertical, with prominent inferior edge ; 

 posterior line of eyes wider than anterior, but a little less 

 strongly recurved, so that the space between the two laterals 

 on each side is less than that between the two medians ; 

 posterior medians further from each other than either is from 

 the lateral ; eyes of anterior line about equally spaced ; quad- 

 rangle of median eyes at least twice as wide as long ; clypeus 

 slightly narrower than length of ocular quadrangle ; length 

 of carapace less than patella and tibia of first leg and a little 

 less than its protarsus and tarsus. 



Mandibles with fringe of hai. below. 



Protarsi of legs scarcely spined; tarsal and protarsal 

 scopula? thick on posterior legs and at apex of tarsus on 

 anterior legs. 



Measurements in millimetres. — Total length 20; length of 

 carapace 9*5, width 8'5. 



Loc. Nyasaland (E. Crawshay). 

 Ann. & Mag. N. Hist. Ser. 7. Vol. ii. 31 



