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



291. Euophrys obscurus, sp. nov. 



Plate XVII, Fig. 14. 



Length 6 mm.; ceph. 2.4 mm. long, broad 1.8 mm. Cephalothorax red- 

 brown, darker on eye-region, a pale stripe each side from dorsal eye back to 

 the hind margin; clypeus dark, with pale hair; palpi banded; mandibles pale; 

 legs pale, with dark rings at tips of femora and patella;, and bases and tips 

 of tibiae and metatarsi; sternum pale. Abdomen brown above and on the 

 sides, some indistinct pale spots and two larger marks just before the spin- 

 nerets; venter paler, with dark dots. Cephalothorax rather low and flat. 

 Abdomen somewhat depressed. Third leg a little shorter than fourth; fourth 

 metatarsi spined to base. S. E. more than one-half as large as M. E.; third 

 row almost as wide as cephalothorax at that point. 



Several female specimens from Coral de Piedras and La 

 Chuparosa. 



292. Habrocestum coecatum Henlz.f — One pair (the 

 male immature) from Tepic appear to belong to this 

 species. 



293. Habrocestum conjunctus, sp. nov. 



Plate XVII, Fig. 8. 



Length S 4.5 mm.; ceph. 2.4 mm. long, broad 1.8 mm. The cephalo- 

 thorax is pale; eye-region black, red hairs above first eye-row and on eye- 

 region; clypeus pale, a black stripe each side extends back from dorsal eyes 

 toward the hind margin, the side margins white, a long median black triangle 

 behind; mandibles pale; palpi pale; sternum margined with black. Legs 

 pale, a crest of white hair on femur, patella, and tibia I, black beneath on 

 tibia I, hind pairs with tips of joints darker. Abdomen pale, a long black 

 stripe each side, connected at tip, a dark spot at base between them, some- 

 times wholly dark at base, sides black; venter with three indistinct dark 

 spots. Third pair of legs much the longest; patella simple. The $ is 6 mm. 

 long. Cephalothorax red-brown, darkest on eye-region. Abdomen brown 

 above, with oblique white stripes each side, two spots in the middle and some 

 chevrons behind; venter with three indistinct dark lines. Legs pale; sternum 

 margined with black. 



A few examples from San Jose del Cabo and Magdalena 

 Island. 



