chamberlin: the arachnida. 219 



famih' (Hist. nat. Araign., 1, p. 325) "la griffe inferieure est assez 

 petite et toujours mutique; cliez les Nops elle est remplacee aux 

 paires anterieures par deux petites lames membraneuses." But 

 since in the case of the present species both the claw and the laminae 

 are present at the same time, we cannot look upon the development 

 of the laminae as such a replacing. The median claw is higher than 

 usual in position, being inserted on a level with and lying between 

 the paired claws so that it is easily overlooked; it is quite possible, 

 therefore, that it will be found in some degree of development in 

 other species. The superior spinnerets seem to be relatively consid- 

 erably shorter than usual. The color-pattern of the abdomen is 

 distinctive. In our present state of knowledge, it is impossible to 

 give a wholly satisfactory judgment as to the position and relation- 

 ships of the present form. 



DRASSIDAE. 



Drassodes sp. 



An immature specimen of uncertain species was taken at Cuzco, 

 11,500 feet, in July. (M. C. Z. 169). 



Drassodes araucanius,^ sp. nov. 



Plate 11, fig. 4-8; Plate 12, figs. 1-2. 



Carapace light brown or testaceous; eyes, excepting sometimes the 

 posterior medians, ringed with black and the intervening area in some 

 dusky. Chelicerae brown to dilute chestnut. Sternum and endites 

 like the carapace; labium dark dusky brown to dusky chestnut. 

 Legs light brown or testaceous, the anterior pairs darker distally. 

 Tarsus of palpus abruptly darker than proximal joints. Abdomen 

 clear brown-grey without markings, paler beneath than above. Cara- 

 pace clothed with numerous fine greyish hairs, a large proportion of 

 which are plumose, with coarser, black, more erect hairs sparsely 

 intermixed. Sternum densely clothed with similar mostly plumose 

 hairs and sparsely with coarser, more bristle-like, black hairs. Legs 

 clothed with finer appressed plumose grey hairs, more erect, stiffer 



1 Araucania, a tribe o( Soutli American lodiiins. 



