1897.] MR. R. I. POCOCK ON ETHIOPIAN SPIDERS. 773 



The African genera referred to the Theraphosinse, included 

 under the heading h of the table on p. 745 may now be reclassified 

 as follows ; — 



a. Distal half of posterior surface of maxilla covered with hairs 



intermixed with stout spines ; coxa of 1st leg furnished 

 above the suture with a set of modified, plumose or simple 

 bristles surmounted b}' a fringe of plumose hairs ; a similar 

 fringe upon the trochanter protecting a set of scattered or 

 definitely arranged notes ; posterior sternal sigilla subcen- 

 tral ; legs at most spined at the tips of the tibias and 

 protarsi ; claws untoothed; vaaX&i^ Euinenophorus)yi\t\\o\xt 

 tibial spurs or with but one. Subfamily Eumenopiiouin^. 



a'. Thoracic fovea forming a transversely elongate pit (see 



under a°, 6" on p. 746). Moncentropus and AnopLoscelus. 



h' . Thoracic fovea forming a eresceiitically procurved groove 



(see under V on p. 7-16). Eumtnophorus, Hysierocratcs, Phoneyusa. 



b. Distal end of posterior surface of maxilla mesially naked, 



striate, neither spinous nor hairy ; no feathery fringe on 

 upper side of coxa or trochanter of first leg, the area of 

 the coxa above the suture furnished with simple or spini- 

 form hairs (claws toothed, 4th tarsus divided by band of 

 setas, not always very distinct in Scodra). 

 a-. Legs without spines, copiously hairy, ocular tubercle 



low, wide (thoracic fovea shallow, transverse, &c.) Scodra. 



b-. TibiiB and protarsi, especially of posterior legs, strongly 



spined ; legs normally hairy ; ocular tubercle convex ; 



eyes compact. 



a?. Thoracic fovea crescentically procurved ; sternal si- 



giUa submarginal ; anterior tibia of male without 



spurs Selenogyrus. 



b^. Thoracic fovea straight, transverse ; sternal sigilla re- 

 moved from the margin ; anterior tibia of male 

 unarmed Miaschistoptis. 



E. I. P.] 



EXPLANATION OF THE PLATES. 

 Plate XLI. 



Fig. 1. Monocentropus halfoiiri, gen. et sp. n. : palpal ^ organ (p. 759). 

 la. „ „ ,, tibial spur of c^ (p. 759). 



2. Selenogyrus aureus, gen. et sp. n. : palpal organ (p. 7()8). 

 2 a. „ ,, „ tibial spurs (p. 768). 



'6. Anoploscelus celeripes, gen. et sp. n. : palpal organ (p. 760). 



4. Hysterocrates laticeps, sp. n., (5" : carapace (p. 765). 



4 a. „ „ „ posterior leg, external side (p. 765). 



4 b. „ „ „ palpal organ (p. 765). 



4 c. ,, crassipes, s^.n., ^ : posterior leg, external side, to compare 



with 4 a (p. 764). 



5. Miaschistoptis rapidus, gen. et sp. n. : palpal organ (p. 770). 



6. Heterothele spinipes, i^p. n. : palpal organ (p. 737). 



7. Acanthodoii lacustris, sp. n. : labium and sternum, to show sternum 



typical of the Idiopina (p. 731). 



7 a. „ „ eyes (p. 731). 



lb. „ ,, patella and tibia of 3rd leg, showing 



absence of excavation on tibia (p. 731). 



8. Heligmomeriis somalicus, sp. n. : eyes (p. 729). 



8 a. ,, ,, patella and tibia of 3rd leg, showing 



excavation at base of tibia (p. 729). 



^ In this and aU cases the palpal organ is drawn from its external aspect. 



