new African Theraphosoid Spiders. I!) L 



the Niger (P. Z. S. 1899, p. 844), and like that species in 

 presenting a shallow transverse groove in front ot' the fovea, 

 imt certainly diH'ering in the much greater inequality in 

 length between the tirst and fourtli legs. In //. hercu/es the 

 first leg falls short of the fourth by nearly half the length of 

 the tarsus of the fourth, whereas in //. scpticus it falls short 

 by more than the length of the (arsus ; the fourth leg in 

 //, hercu/es is exccjitionally short, its patella and tibia being 

 less than those of the first. 



Med.surements in millimetres. — Total length (38 ; length of 

 carapace 32, its width 27 ; first leg 74*5, second G3, third 60, 

 fourth 80; patella and tibia of first leg 30, of fourth 31; 

 tarsus and protarsus of fourth 31 ; femur of fourth 24'.'), its 

 height 7 ; tibia 17'.'), its width 5. 



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

 queri/s coll.). 



llysterocrates apostolicus^ sp. n. 



$ . — Resembling //. scepticus in having the tarsus of the 

 palp normal, but distinguishable by the much greater length 

 and strength of the fourth leg. 



Fourth leg strong, rather thicker than the first, the femur 

 three times as long as high (22 : 7), the tibia a little less than 

 three times as long as wide (16 : b'5) ; height of tibia equal 

 to that of patella; the patella and tibia or protarsus and 

 tarsus are very noticeably longer than the carapace, the whole 

 limb surpassing the first leg in length by its tarsus and one 

 third of its protarsus. 



Cara/'uce about e(|ual to jjatella and tibia of first leg and 

 to patella, tibia, and tarsus of palp; no transverse groove in 

 front of the fovea. 



Measurements in millimetres. — Total length 51 ; carapace 

 25*5, its width 22 3 length of first kg 62"o, of second 53, of 

 third 52, of fourth 79; patella and tibia of first 2b, of t'ourth 

 28; protarsus and tarsus of fourth 2^'b. 



Loc. Island of" JSt. Thomas in the Gulf of Guinea [Mac 

 query s coll.). 



Of the species that occur on the mainland, IJ. ajuslolicus 

 approaches Il.gijas, Poc. (P. Z. S. 1897, p. 762, and 18iJ9, 

 p. 845), from tlie Cameroons, and //. luticeps, Poc. (c»/). ctt.)^ 

 iron) Old Calabar. From the former it may be recognized by 

 its broader carapace and by having the carapace shorter 

 instead of longer than the patella and tibia or protarsus and 

 tarsus of the fourth leg; from the latter by having the patella 

 and tibia of the fourth greater than of the first leg instead of 



