1S98.] BY MH. C. S. BETTON IS BRITISH EAST AFBICA. 505 



represented by male and female examples, obtained by Mr. Betton 

 and believed to be identical with the form named P. hohneli by 

 Simon. 



The type of Flsenor is a species from the Zambesi, named notius 

 by Simon (Act. Soc. Linn. Bord. xlii. p. 411, 1889). The male of 

 it is as yet unknown, and it may consequently prove to have the 

 same sexual features as the genus here established. In that case 

 Plsenorodes will lapse as a synonym of Pisenor. But Sinion has 

 described the male of a second species, which he refers to Pisenor, 

 namely P. nigeUus (loc. cif. p. 411), from Laudana, Congo ; and the 

 tarsus of this species is described as small, narrow, and bilobate, 

 being apparently constructed much as in the allied genus Idiom- 

 mata, and in the genera of Theraphosidse. In that case P. nviellus 

 can hardly be congeneric with the species here identified as hohneli ; 

 and since it has been definitely referi-ed to Pisenor, it appears to 

 me advisable to establish a new genus for the species now before 

 me. If this species be wrongly determined it must have a new 

 specific name and can still be regarded as type of this new genus. 



PiSEXORODES HOHNELI (Simon). (Plate XLI. figs. 2-2 h.) 



Pisenor hohneli, Simon, Ann. Soc. Ent. France, 1889, p. 125. 



Eecorded from Kilimanjaro by Simon. Mr. Betton obtained 

 specimens at the following localities : — Samburu and at Taru, 

 Maziwa ya Tagari and Machuma in the Taru desert. 



The female examples I am unable to separate from the female 

 of hohneli as described by Simon. But since the male is new to 

 science, the following particulars regarding it may be mentioned: — 



The carapace is as long as the patella and tibia of the 4th leg 

 and the tarsus and protarsus of the Ist, slightly shorter than 

 patella and tibia of the 2nd, and distinctly shorter than protarsus 

 of 4th, about equal to patella, tibia, and tarsus of the palp ; its 

 width is almost as great as its length. 



Legs 4, 1, 2, 3 ; protarsus of 4th longer than protarsus and 

 tarsus of 1st ; tibia of 1st armed distally with an inferior process 

 tipped with a single strong spine, above and behind this is a second 

 very stout, slightly curved spine, and in addition to these the 

 segment is armed with about eleven long slender spines ; the pro- 

 tarsus is slender and lightly bowed and armed with 1 (2) external 

 basal spines. Palp projecting halfway along the tibia of the Isfc 

 leg when extended, its femur spined at the apex on the inside ; 

 its patella with two short basal spines on the inner side ; tibia 

 with about five spines on the inner side, thickly hairy below, with 

 a naked median channel for the reception of the palpal spine, 

 while the distal end is hollowed beneath for the reception of the 

 bulb ; -palpal bulb subglobular, the spine longish, straight, with a 

 bent tip, broad, more or less spatulate, slightly constricted at the 

 base, wi.th a slight spiral twist. Femora, patella, and tibia of all 

 the legs spiny. 



Mandible armed with a single internal row of nine large teeth and 

 a few small granules posteriorly. Ma.rilla lightly depressed at the 



