498 
Psyche 
[December 
Description. Total length 1.91 mm, exclusive of the somewhat 
extended spinnerets. Carapace 0.74 mm long; 0.60 mm wide opposite 
posterior border of second coxae where it is widest; 0.33 mm tall 
opposite anterior border of third coxae where it is tallest; rises con- 
siderably from PME to beginning of steep posterior declivity (Fig. 
20) ; surface smooth with a moderately well developed coat of erect, 
light colored hair; without a definite median thoracic fovea. Eyes: 
six in two rows in a fairly compact group ; posterior row occupies 
nearly nine-tenths of width of carapace at that level and is moderately 
recurved (Fig. 21). Ratio of eyes ALE : PME : PLE = 8 : 8.5 
: 7. ALE separated from one another by nearly five-eighths of their 
diameter, separated from PME by a little less than one-fourth of 
their diameter and barely separated from PLE. PME contiguous to 
one another for one-third of their circumference and separated from 
PLE by a fairly broad line. Height of clypeus probably about equal 
to the radius of ALE; clypeus with numerous spiniform bristles. 
Chelicerae: vertical; parallel; without special modifications. Maxil- 
lae and lip: apparently typical of the genus; close observation pre- 
vented by folded, fragile legs. Sternum: scutiform; convex; as wide 
as long; posterior end bluntly rounded and extended halfway between 
fourth coxae which are separated by slightly more than their width. 
Legs: 4213 in order of length; spines quite well developed but they 
are less conspicuous than in Oonops persitus sp. nov. ; first tibia with 
about five pairs of ventral spines with some irregularities; first meta- 
tarsus with about four pairs of ventral spines also with some irregu- 
larities and with differences between right and left; second tibia with 
spines nearly like those on first tibia; about the same for the second 
metatarsus ; third and fourth legs also with numerous spines on tibiae 
and metatarsi ; palp with numerous slender spines especially on the 
tarsus; no claw observed on palpal tarsus. Abdomen: broad ovoid; 
with two rather weakly outlined ventral scuta as shown in Figure 
22; spinnerets essentially typical of the genus; epigynal area obscure 
but apparently somewhat distinctive (Fig. 22). Color in alcohol: 
carapace, legs, sternum and associated parts all yellowish with varia- 
tions; black pigment in ocular area essentially as shown in Figure 21 ; 
abdomen white with grayish, irregular, small spots showing through 
from within; scuta yellowish with variations; on the venter just 
anterior to the base of the spinnerets are two clusters of very small 
dots. 
Diagnosis. Although relationships among species in this genus are 
very difficult to establish, this species appears to be closely related 
