490 Mr. R. I. Pocock on some 



segments of the legs ; legs without distinct pale lines ; cara- 

 pace, abdomen, and femora more sooty than the remaining 

 segments of the legs. 



Carapace normal in form, shorter than patella and tibia of 

 fourth or of first leg, and than protarsus and tarsus of fourth, 

 and than patella, tibia, and tarsus of palp ; its width sub- 

 equal to or a little less than distance between ocular tubercle 

 and posterior emargination, equal to or slightly exceeding 

 femur of fourth leg, less than femur and patella of third leg ; 

 no perceptible transverse groove in front of fovea. 



Mandibles tubercular in front. 



Legs 4, 1, 2, 3 in length, fourth exceeding the first by the 

 length of its tarsus ; fourth leg not in any sense thickened, 

 the height of the femur not quite a third of its length 

 (7 : 23*5) ; patella and tibia narrower than femur, patella a 

 little thicker and higher than tibia ; tibia cylindrical, about 

 three times as long as high or wide (18 : 5'5) ; length of 

 upperside of patella more than twice its height or width. 



Palp with tarsus tumid at base, being proximally higher 

 and wider than tibia (woodcut, fig. b } p. 493). 



Measurements in millimetres. — Total length 58 ; carapace 

 28, its width 25; length of first leg 73, of second 62, of 

 third 60, of fourth 84 ; patella and tibia of first 29, of fourth 

 30 ; protarsus and tarsus of fourth 31, of first 22. 



Loc. Island of St. Thomas in the Gulf of Guinea (Moc- 

 querys coll.). 



This species is probably the same as that determined by 

 Simon as Phoney usa Greeffi, Karsch, which, according to 

 Simon, has the tarsus of the palp tumid above at the base. 

 Karsch's description contains nothing to justify this statement, 

 no special modification of this segment being mentioned. 

 Since, moreover, the length of the legs in P. Greeffi is, 

 according to the description, different from that of the legs 

 in the form here described, I am compelled to regard the two 

 as specifically distinct. 



Ilysterocrates scepticus, sp. n. 



y , — In appearance and structure closely resembling the 

 preceding, but with the tarsus of the palp normal and the 

 legs shorter as compared with the carapace, the latter being- 

 longer than the patella and tibia of first or fourth legs. 



Most nearly allied to H. kercules*, Poc, from Jebba, up 



* In the description of this species the carapace stands as 34 millim. 

 long. Including the posterior epimeral piece (which, consistently, should 

 he included), the length is 35-5. 



