280 Mr. B. I. Pocock on the Pedipalpi of the Family 



tibia, length 9*2, thickness 3"5, length of longest spine 3*5 ; 

 length of tarsus 4'5, of digit 5. Legs : femur of first 33*5, of 

 second 17, of third 17, of fourth 15; tibia of second 17, of 

 third 19, of fourth 18. 



Loc. West coast of America (probably Ecuador or Colom- 

 bia). Collected by the officers of H.M. ships 'Herald' and 

 1 Pandora.' 



The British Museum has three examples, one adult (the 

 type) and two young. In the latter the yellow spots on the 

 legs and trunk are much more conspicuous than they are in 

 the adult. 



Tarantula azteca, sp. n. (PL VII. fig. 2.) 



Colour almost entirely blackish brown, without distinct 

 flavous spots or bands. 



Granulation not very coarse. 



Carapace with its frontal region gently sloped downwards 

 and forwards ; distance between the lateral eyes less than the 

 longitudinal length of the carapace and about twice the 

 distance of either lateral eye-cluster from the anterior or 

 lateral border of the carapace : median tubercle nearly 

 spherical, separated from the anterior border by a space which 

 is about equal to its long diameter. The anterior border 

 rather narrow, distinctly emarginate, evenly and moderately 

 coarsely denticulate. 



Mandibles smooth or nearly so above, without enlarged 

 tubercle. 



Chelce elongate, robust, the spines short; the femur above 

 nearly twice as long as the distance between the eyes, armed 

 above with 6 spines, of which the first, the double one, is 

 noticeably shorter than the second, which is equal to the 

 third ; the fourth minute, the fifth a little larger than the 

 fourth, the sixth minute, about the size of the fourth ; below, 

 the first three teeth are long and subequal, the first being 

 slightly the longest ; the fourth and sixth spines very minute, 

 the fifth of medium size ; the first shorter than the height of 

 the femur. Tibia much wider than its longest spine, its upper 

 edge armed with 9 spines, the eighth and ninth minute, the 

 first also minute, the second less than half the length of the 

 third, which is longer than the fourth, which is longer than 

 the fifth, sixth about equal to the fourth, seventh about equal 

 to the second ; armed below with 5 spines and some inter- 

 spersed spinules. The first and third inferior spines of the 

 tarsus very short. 



Legs. — Femur of first greater than the length of the cara- 

 pace by about one third of its length ; femur of second greater 



