On some South- Americaii Aviculariidse. 81 



Molars of the ordinary character, not as in F. viystax *. 



Dhiiensions of the type (measured in skin) : — 



Head and body 190 millim. ; tail 155; hind foot(3. u.) 11. 



Skull : greatest length 16 ; basilar length 31 ; length of 

 upper molar series {mp* and 3 molars) 7'5. 



Hah. For^adoS; Lower Nigeria. 



Type. Immature male. B.M. no. 2. 11. 2. 15. Original 

 number 10. Collected 3l3t December, 1901, by Dr. W. J. 

 Ansorge. 



This species differs from F. pyrrhopus and F. leucostigmi 

 by the almost complete suppression of the red of the cheeks, 

 limbs, and Hanks, and the whiteness of its light dorsal lines, 

 from F. inystax by these lines being much more conspicuous, 

 and by its white under surface, and from F. mandingo by its 

 generally darker colour. 



XIII. — On some Genera and Species of South- American, 

 Aviculariidre. By R. I. POCOCK. 



Genus AVICULARIA, Lam. 



Avicularia minafrix, sp. n. 



? . — Colour. Carapace and upperside of appendages 

 covered with olive-grey hairs, showing a delicate tinge of 

 pink ; a conspicuous fringe of pink hairs at the extremity of 

 the tibial and protarsal segments of the legs on the dorsal 

 side, a similar but shorter and less noticeable fringe on the 

 extremity of the patella ; hairy fringe at the extremity of the 

 tarsus much less noticeably red than that of the protarsus ; 

 sternum, coxjb, and underside of abdomen sooty black, upper- 

 side of abdomen vividly black and red ; the median line 

 occupied by a broadish black stripe, whence five pairs of black 

 stripes pass transversely over the sides of the abdomen ; the 

 spaces between these stripes red, hence the lateral surface of 

 the abdomen might be described as ornamented with alternate 

 bands of black and red ; the red stripes wider dorsally ; the 

 black stripes are narrowest at their point of origin from the 

 median stripe. 



Carapace as long as patella + tibia + tarsus of palp, almost 

 half the length of the third leg (measured from the base of 

 the femur), and slightly longer than patella + tibia of first or 



* Cf. de Winton, Ann. & Mag. Nat. Hist. (7) ii. p. 10 (1898). 

 Ann. ci; May. N. Hist, Ser. 7. Vol. xi. 6 



