226 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



and a half longer than broad, rounded at base, pointed behind. The epigy- 

 num shows two dark cavities separated by a narrow septum, and behind two 

 pale cavities, in front are outlined two dark bodies. The $ palpus is similar 

 to that of T. tranquilla Hentz., but the bulb is longer. 



Several specimens ; Magdalena Island and El Taste. A 

 young one is pale colored on the thorax and front legs, like 

 allied species. 



61. Trachelas mexicana, sp. nov. 



Plate XIII, Fig. 27. 



Length 8 mm. Cephalothorax, mandibles, and sternum bright red-brown; 

 first legs rather paler, others yellowish; abdomen gray, darker toward the 

 tip. Cephalothorax and sternum finely rugulose like T. tranquilla; posterior 

 eye-row strongly recurved ; P. M. E. about once and a half their diameter apart 

 (two and a half times in T. tranquilla), more than twice their diameter from 

 the equal P. S. E. ; A. M. E. less than their diameter apart, rather closer to 

 the A. S. E. ; mandibles large, not so prominent as in T. tranquilla; legs 

 with fine hairs, no spines; sternum like that of T. tranquilla; and abdomen 

 as in that species. The epigynum shows two holes as in that species, but the 

 corneous area extends further forward. 



One female from Tepic, Oct. Closely related to T. tran- 

 quilla, but light cephalothorax, smaller size, and position of 

 posterior eyes proclaim it distinct. 



62. Clubiona complicata, sp. nov. 



Plate XIII, Fig. 39. 



Length of ceph. 5 mm., broad in middle 4.4 mm., front 2 mm.; tibia plus 

 patella I 6 mm. Cephalothorax, legs, mandibles, and sternum pale yellowish; 

 legs more reddish on the metatarsi; abdomen pale gray above and below. 

 Cephalothorax rather broad and low ; posterior eye-row straight, about equal 

 in size; the P. M. E. their diameter apart, more than twice as far from the 

 P. S. E. ; eyes of anterior row at about equal distances; the A. M. E. smaller 

 and scarcely their diameter apart; legs large and long, two spines above on 

 all tibia;, six pairs below on tibia I; sternum a little longer than broad, con- 

 cave in front, sides rounded; abdomen small and short; patella of <? palpus 

 as long as the tibia, the latter with a large forked projection on the outer side, 

 the outer branch of which is curved and bifid at tip. 



One male from San Jose del Cabo. 



63. Syspira tigrina Sim. — Several specimens; San Jose 

 del Cabo, Mazatlan, and Hermosillo. 



