266 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3 d Ser- 



II the bands are nearly united, on hind femora the middle band sometimes 

 broken into dots; sternum pale, in one specimen with marginal dots. Abdo- 

 men with a basal brown spear-mark, margined with white, the white behind 

 is a median stripe separating two dark stripes, thickly mottled with brown 

 on anterior sides; venter pale, or slightly dotted with brown. The A. M. E. 

 are much larger and closer together than the P. M. E., not much over their 

 diameter apart, still closer to the smaller A. S. E.; P. M. E. much nearer to 

 the P. S. E. than to each other; two pairs of long spines under tibia and 

 metatarsus I; abdomen broadest in the middle, pointed behind. 



Two female specimens from Hermosillo. 



SPARASSID^E. 



219. Heteropoda venatoria Linn. — Many specimens 

 from San Jose del Cabo ; a few from Tepic. 



220. Olios fasciculatus Sim. — Several from San Jose 

 del Cabo. I think that O. concolor and O. giganteus Keys 

 are this species. 



221. Olios peninsulanus, sp. nov. 



Plate XVI, Fig. 19. 



Length $ 13 mm.; ceph. 4.3 mm. long, broad 3.9 mm.; femur I 4.5 mm. 

 Cephalothorax, legs, mandibles, and sternum pale yellowish; fangs dark red- 

 brown; abdomen light gray above and below, with a more or less distinct 

 median row of brown dots above. The cephalothorax is convex, highest a 

 little behind the eyes; posterior row straight, plainly longer than the anterior 

 row, equal in size and at nearly equal distances; the M. E. twice their diam- 

 eter apart; A. M. E. larger, once their diameter apart, plainly closer to the 

 equal A. S. E. ; mandibles short, prominent. Legs moderately short; two 

 pairs of spines under all tibiae and metatarsi; sternum broader than long, tri- 

 angular, pointed between hind coxae. Abdomen rather large, oval, rounded 

 at base, pointed at tip. The $ is similar to the $ , but smaller and propor- 

 tionally longer legs; the tarsus of the palpus blackish. 



Several specimens; Sierra San Lazaro and San Jose 

 del Cabo. 



