Zool.— Vol. I.] BANKS— MEXICAN ARACHNIDA. 209 



uniform dark gray; young specimens have cephalothorax yellowish and 

 abdomen paler gray. Cephalothorax nearly twice as long as wide, but little 

 narrowed in front. Legs quite long; femora stout, I curved in S , as long as 

 cephalothorax; in 9 a little shorter; metatarsus I of S with a projection at 

 the tip bearing a black spine; metatarsus I nearly straight; tarsus curved in 

 i ; all legs hairy; several spines on the inner side of femur I near tip, five or 

 six spines below on tibia I; mandibles stout, slightly porrect. Posterior eye- 

 row barely recurved, anterior row nearly straight; A. M. E. smaller than 

 other eyes and less than their diameter apart; S. E. slightly separated; M. E. 

 form a trapeze broader behind than long; P. M. E. a little more than diame- 

 ter apart and closer to each other than to the S. E. Sternum and mouth- 

 parts as in the other species. Abdomen once and a half as long as broad, 

 rounded behind and in front, quite high and convex, thickly clothed with 

 blackish hairs. 



A few specimens from San Jose del Cabo and Sierra La- 

 guna. It differs from P. castanea in color, in <$ having a 

 projection to tibia I ; from P. tristis in the color, in straighter 

 metatarsus I, and coiled tube of palp. 



10. Diguetia canites McCook. 



Segestria canites McCook, Am. Spiders and their Spinning Work, II, p. 133. 



Two specimens of this remarkable spider from Sierra 

 San Nicolas. It is known to me from Southern California 

 and Southern Texas. 



SCYTODID^E. 



n. Loxosceles rufescens Duf. — Various specimens from 

 Agua Caliente, San Jose del Cabo, La Chuparosa, and 

 Sierra San Lazaro, Sept. 



12. Scytodes lineatipes Tacz. — Two specimens from 

 Magdalena Island. 



13. Scytodes bajula Sim.} — Two specimens, probably 

 this species, from Mazatlan. 



14. Scytodes fusca Walck. — A few specimens from San 

 Jose del Cabo, El Taste, and Hermosillo. 



