36 bulletin: museum of comparative zoology. 



short spinules at distal end above. Many spines near claws on tarsi 

 III and IV. 



Female (type). Total length about 26 mm. 



Cephalothorax : length, 13.7 mm.; width, 12 mm. 



Aptostichus simus,^ sp. nov. 

 Plate 2, fig. 2, 3. 



Type — M.C.Z. 9. 9. California: San Diego. G. R. Crotch. 



Pars cephalica conspicuously elevated. Fovea thoracica nearly 

 transverse, being but slightly procurved. 



Ocular tubercle much lower than in A. atomarius Simon. Anterior 

 row of eyes strongly procurved; median about half the diameter of 

 the lateral. Posterior median eyes a little smaller than the anterior 

 median and much smaller than the posterior laterals. 



Posterior sternal impressions proper small, oval, widely separated 

 from each other and also from the margin but each with a shallow 

 depression or furrow continuing from its ectal end to the margin. 



No spinules present on labium in the type. 



Spinules of coxae of pedipalps in a dense area sharply limited and 

 confined to mesocaudal corner. 



Tarsus of palpus scopulate beneath, the scopula divided by a dis- 

 tinct band of short setae; tibia with 3 very long spines in a series on 

 mesal side below, the most proximal of these spines being almost 

 bristle-like. 



Tarsi and metatarsi of legs I and II scopulate to base, the scopula 

 divided by a distinct setose band. Metatarsus and tibia of leg I 

 wholly lacking spines in the type. Tibia of leg II with a series of 3 

 very long spines on ventral surface toward ectal side, but with no 

 apical spines; metatarsus with two pairs of ventral spines proxi- 

 mad of middle, with three apical spines and immediately proximad 



' Gosiute sima, one, single. 



