504 
Psyche 
[December 
end extended between fourth coxae which are separated by nearly 
their width; with a cluster of stiff bristles at posterior end and at 
each of the slightly indicated marginal lobes. Legs: 4123 in order 
of length ; first and second legs seem to be without spines but third 
and fourth legs bear several spines especially on tibiae and metatarsi 
(Figs. 33-34). Palp: femur of moderate length; patella and tibia 
short and without special modifications; tarsus inflated and with 
embolus and accompanying spinule as shown in Figures 31-32; the 
position of the spinule seems to vary among the paratypes. Abdomen : 
ovoid in general ; spinnerets slender and elongated ; epigastric and 
narrow ventral scuta weakly outlined. Color in alcohol : carapace, 
sternum, legs and mouth parts yellowish with variations; black pig- 
ment in ocular region essentially as shown in Figure 30; abdomen 
nearly white in general but on the venter just anterior to the spin- 
nerets are two groups of minute, brownish spots closely crowded 
together; the scuta are light yellowish. 
Female paratype. Total length, exclusive of the extended spin- 
nerets, 1.98 mm; including the spinnerets total length is 2.14 mm. 
Carapace 0.85 mm long; 0.64 mm wide opposite second coxae where 
it is widest; 0.33 mm tall; otherwise essentially as in male holotype. 
Eyes: six as usual in the genus. Ratio of eyes ALE : PME : 
PLE = nearly as in male; PME quite elongated and others with 
some irregularities in outline; ALE separated from one another by 
nearly their radius and separated from PME and PLE by a broad 
line. PME contiguous to one another for nearly one-third of their 
circumference and separated from PLE by a broad line. Height of 
clypeus nearly equal to one-fourth of the diameter of ALE. Chelicerae, 
maxillae and lip apparently typical of females of the genus. Sternum : 
essentially as in male. Legs: 4123 in order of length as in male 
holotype; spines apparently as in male but somewhat less obscure than 
in that sex; palpal spines numerous, especially on the tarsus. Abdo- 
men : typical of females of the genus in general ; spinnerets much 
extended, especially the posterior pair; epigynal area obscurely dis- 
tinctive (Fig. 35). 
Diagnosis. After repeated consideration I have concluded that I 
must regard this species together with four additional species as con- 
stituting a group somewhat clearly separated from others treated in 
this paper. The male palpal tarsus is closely similar to that of 
Oonops chilepensis Chamberlin and Ivie, 1936 from Mexico. No 
minute spine was apparently seen near the base of the embolus in 
the Mexican species, however, and no mention was made of many 
other important features in that species. 
