354 
Psyche 
[September 
Description . Total length 1.58 mm. Carapace 0.63 mm long; 
0.57 mm wide opposite second coxae where it is slightly wider than 
it is opposite third coxae ; nearly 0.26 mm tall ; without definite 
lobes or humps in cephalic area. Eyes: eight in two rows; viewed 
from above, anterior row gently recurved and posterior row straight 
(Fig. 20). Central ocular quadrangle wider behind than in front 
in ratio of nearly 7:5; slightly wider behind than long. Ratio of 
eyes AME : ALE : PME : PLE — nearly 8:11 : 10 : 9.5. 
AME separated from one another by a little less than their diameter 
and from ALE by slightly more than 1.5 times their diameter. 
Laterals contiguous as usual. PME separated from one another by 
a little less than their diameter and from PLE by about six-fifths of 
their diameter. Height of clypeus nearly 4.5 times the diameter of 
AME. Chelicerae: moderately robust; vertical; parallel; fang evenly 
curved; fang groove probably with five small teeth along promargin 
and four along retromargin. Maxillae: convergent; typical of the 
genus. Lip : very short ; twice as broad as long. Sternum : very 
convex; nearly as broad as long; extended between fourth coxae 
which are separated by their width. Legs: 1243 in order of length; 
long and slender as usual in the genus ; with numerous slender spines. 
Palp: essential features shown in Figures 21-23. Abdomen: typical 
of males of the genus; without special modifications. Color in 
alcohol: carapace brown with darker streaks and vague, small, an- 
gular spots; near the middle of the dorsum there is an elongate, 
angular, darker spot with fine dark streaks reaching toward the 
posterior eyes. Legs and mouth parts yellowish brown with varia- 
tions ; the sternum is dark brown ; abdomen brown with small light 
colored irregular spots. There is considerable variation in color 
pattern among the available paratypes. 
Female paratype . Total length 1.8 mm. Carapace about 0.66 mm 
long (considerably overlapped by abdomen) ; 0.61 mm wide opposite 
second coxae where it is widest; nearly 0.26 mm tall. Eyes: eight 
as usual in females of the genus; very similar to those of male holo- 
type. Clypeus quite porrect; height nearly equal to three times the 
diameter of AME. Chelicerae, maxillae and lip all essentially typical 
of females of the genus and without special modifications. Sternum: 
quite convex; about as wide as long; extended between fourth coxae 
which are separated by nearly 1.3 times their width. Legs: 41 — 23 
in order of length ; with numerous slender spines. Abdomen : typical 
of females of the genus in general. Epigynum: essentially as repre- 
sented in Figures 24-26. Color in alcohol : considerably lighter than 
in the male but otherwise essentially as in that sex. The color pattern 
