Zool.-Vol. I.] BANKS— MEXICAN ARACHNIDA. 225 



anterior row straight; A. M. E. about diameter apart, closer to the equal 

 A. S. E. ; mandibles quite large and stout, scarcely porrect. Legs long, with 

 long spines; first pair longest; hind femora rather stout. Abdomen narrow 

 and cylindrical; S palpus very large; tibia curved, with a large projection on 

 the outer side from near the base, trifid at tip. 



One male; Sierra San Lazaro, Sept. Its small size and 

 the trifid projection to the tibia of palpus separate it from 

 the allied C. albens Hentz. 



58. Chiracanthium inclusa Hentz. — Several specimens 

 from San Jose del Cabo, and Tepic, Oct. 



59. Trachelas parvulus, sp. nov. 



Plate XIII, Fig. 28. 



Length 4,5 mm. Cephalothorax, mandibles, and sternum dark red-brown; 

 legs all pale yellowish; abdomen dark brown, paler beneath. Cephalothorax 

 and sternum rugulose; posterior eye-row but slightly recurved; the P. M. E. 

 round, hardly their diameter apart and about as far from the equal P. S. E.; 

 anterior row a little shorter, straight; A. M. E. equal to the P. M. E., a little 

 less than their diameter apart, much closer to the equal A. S. E. ; mandibles 

 not porrect; sternum once and a third longer than broad, truncate at base. 

 Legs slender, clothed with fine hair, no spines. Abdomen once and a half 

 longer than broad, rounded at base, pointed at tip. The epigynum shows 

 a cavity much broader than long, in each hind corner a darker spot, and two 

 long dark bodies are outlined in front. 



One female; no locality. Readily separated from T. 

 speciosa by its smaller size, much shorter and straighter pos- 

 terior eye-row, and different epigynum, as well as the pale 

 front legs. 



60. Trachelas speciosa, sp. nov. 



Plate XIV, Fig. 32. 



Length 5.5 to 8.5 mm. Cephalothorax, mandibles, and sternum dark red- 

 brown; anterior pair of legs reddish, others pale yellowish; abdomen dark 

 gray or brownish, four red-brown impressions above. Cephalothorax, man- 

 dibles, and sternum finely rugulose; head broad; posterior eye-row strongly 

 recurved; P. M. E. round, once and two-thirds their diameter apart, more 

 than twice their diameter from the equal P. S. E. ; anterior row much shorter, 

 nearly straight; A. M. E. equal to P. M. E., about their diameter apart, 

 much closer to the equal A. S. E. ; mandibles very stout, slightly porrect; 

 sternum once and a half longer than broad, truncate in front, sides rounded. 

 First pair of legs stout, all clothed with fine hair, no spines. Abdomen once 



