10 Journal of Entomology and Zoology 
annulate with dark. Chelicere pale brown. Dorsum of abdomen dark grey along 
sides, the median region light reddish with a series of yellow spots along each edge; 
sides of abdomen yellowish grey lightly spotted with black; venter limited on each 
side by a longitudinal dark line, the intervening region almost immaculate. Posterior 
eyes equidistant, not fully their diameter apart. Anterior median eyes much smaller 
than the laterals, near their radius apart, a little nearer to the laterals. Palpal organ 
represented in pl. 4, f. 1. 
Length, 7 mm. Length of cephalothorax, 3.2 mm. Length of tib.+ pat. I, 4.5 
mm.; of tib. + pat. 1V, 4.7 mm. 
Type—M. C. Z. 384. California: Catalina Id.: Avalon Bay. Wm. A. Hilton 
coll., Aug. 25, 1918. 
Distinct from other North American species especially in the structure of the male 
palpus. 
CLUBIONID 
Olios schistus sp. noy. 
A species approaching O. peninsulanus, known from Lower California, but dif- 
fering in coloration and various details of structure. While in peninsulanus the 
carapace, labium, endites, chelicere and legs are uniformly immaculate pale yellow, 
in the present species the legs are darkened by numerous minute, dark, somewhat 
purplish, spots which show a tendency to condense into an irregularly defined annulus 
at proximal end of tibie; similar but fewer dots occur on carapace and chelicere, 
but the sternum is immaculate. Abdomen also very obviously darker and differently 
marked, being densely spotted and streaked on the sides with blackish and less strongly 
so above and below, the dorsum with a clear sagittate mark at base, followed by a 
series of short chevron marks united along middle by a black line which is furcate 
at its anterior end. Anterior eyes obviously larger than the posteriors; anterior median 
eyes their diameter from the laterals and a little farther from each other, the eyes 
being more widely separated than in peninsulanus. Posterior rows of eyes a little pro- 
curved instead of straight, and the eyes much more widely separated than in the 
species mentioned, the medians being three times their diameter apart and as far or 
nearly as far from the laterals. Epigynum decidedly larger proportionately, with the 
outer ridges posteriorly more thickened and elevated with reference to the inner rims, 
etc. See pl. 4, f. 2. The palpal organ of male of similar structure but obviously 
heavier; the proximal apophysis of tibia larger, distally clavately expanded and trun- 
cate instead of being distally pointed with the setose edge long and oblique; the 
anterior apophysis also differing as shown in pl. 4, f. 3. 
Length of female, 10.5 mm. Length of cephalothorax, 4.8 mm. Length of tib. + 
pat. I, 6.8 mm.; of tib.-+ pat. IV, 6 mm. A male with cephalothorax 4.8 mm. long 
has tib. ++ pat. I, 8 mm. and tib.-+ pat. IV, 6 mm. long. 
Type—M. C. Z. 354. 
Cal.: Claremont. R. V. Chamberlin coll. Also Wm. A. Hilton 1918 coll. 
Anyphaena crebrispina sp. nov. 
Male—Carapace and legs dull yellow, a dusky band along upper part of each side 
of the former. Sternum, labium and endites also yellow, the chelicere brown. Abdo- 
men dull grey of slight yellow cast; dorsum with a few dark spots, the sides with 
more numerous dark spots and streaks; venter with some spots on posterior portion, 
