398 MR. R. I. PococK ox SOME ' [Dec. 2, 



tibia and protarsus of 1st also spicular, of 2nd, 3rd, and 4tli scarcely 

 so ; tarsi of 3rd and 4tli scopulate below, of 1st and 2nd less so. 



Measurements in mm. :— Total length 6 ; mandible 9 ; palp 10 ; 

 1st leg 23, 2nd 43, 3rd 25, 4th 36. 



Loc. East Africa : Mombasa {D. J. Wilson). 



This species appears to fall into the genus Guruia of Loman 

 (Zool. Jahrb. xvi. pt. 2, p. 172, 1902), judging by the form of the 

 mandible, and the j)resence of three ocular spines. But the ocular 

 tubercle is only separated from the anterior boi'der of the carapace 

 (text fig. 81, A) by a space equalling its own long diameter. It 

 further differs from G. frigescens from Gurui in the larger size of 

 the ocular spines, its longer legs, and in having the tarsus of the 

 palp longer than the femur. It is also longer-legged than G. levis 

 from Zanzibar, and further differs in the form of the mandible. 



To distinguish Guruia from Rhampsinitus, Loman gives : — Legs 

 shorter ; palpi very slender, much weaker than the legs, partly 

 concealed by the large mandibles ; mandibles of male much longer 

 than the body, with the second segment thickened and oval ; ocular 

 tubercle in the posterior part of the carapace, a little longer than 

 high, armed above with three dissimilai- denticles. 



In P. (G.) palmatimamis the legs are much longer than in 

 P. {P.) sjyenceri, and the palpi relatively shorter and slightly more 

 robust. In neither are they partly concealed by the mandibles. 

 In both the posterior slope of the tubercle rises on a level with 

 the groove lying just in front of the first transverse row of tubercles 

 on the carapace ; and the frontal area of the carapace is relatively 

 a little longer in P. (P.) spenceri than in P. {G.) palmatimanus, 

 and the ocular tubercle is lower. The I'elative length of the 

 mandibles in the two is about the same. 



Genus Macropsalis Scirens. 



Macropsalis hoggi, sp. n. 



$ . Colour yellowish brown, marbled with darker lichei' brown 

 and spotted with white ; palpi and mandibles pale, clouded with 

 brown ; legs pale, distinctly banded with brown. 



Carapace with numerous scattered denticles before, behind, and 

 beside the tubercle, a few more externally ; tubercle with at least 

 two rows of spicules. 



Mandibles densely covered with spicules ; fingers not crossing 

 when closed. Palpi with patella shoi'ter than tibia and without 

 process. Trochanters of legs spinous in front ; femora spinous, 

 especially the anteiior above and beneath ; patellae of 1st, 3rd, and 

 4th spinous above and below, especially that of 1st leg, of 2nd 

 with two ajDical spicules above ; tibia of 1st thickly spinous, of 

 the rest smooth, that of the 2nd with spurious articulations. 



(5. Differs from $ in having the second segment of the 

 mandible much more sparsely and sti'ougly denticulated in front, 

 and the distal extremity of the patella of the palpus produced 



