152 
Psyche 
[December 
Abdomen. — Ovoid; .946 mm. long; longer than wide in 
ratio of 43 : 30; widest near the middle; the cribellum is 
undivided and quite normal in appearance; the six spin- 
nerets are as usual in the genus. 
Color in alcohol. — Carapace gray-brown with black 
streaks, lighter on top of the pars cephalica. Sternum 
and lip much the same but somewhat darker. Chelicerae 
and maxillae somewhat lighter. Legs and palps yellowish 
white. Abdomen : with a median dorsal yellowish stripe 
with irregular borders extending from near the base to 
the tip of the anal tubercle and enclosing two small central 
dark spots in its posterior half; dark brown elsewhere, 
obscurely spotted with yellowish. 
Type locality. — Male holotype from El Volcan, R. P., 
August, 1950. No paratypes; female unknown. 
Genus Thallumetus Simon, 1892 
Thallumetus pullus sp. nov. 
(Figures 2-5) 
Male holotype. — Total length 1.755 mm. Carapace .704 
mm. long; .682 mm. wide opposite second coxae where it 
is widest; .396 mm. tall and, therefore, about .58 as tall as 
wide; with steep and somewhat irregular descent almost 
immediately behind pme to bottom of posterior declivity 
opposite third coxae; no longitudinal thoracic groove ob- 
served; near bottom of steep posterior declivity there is 
a group of four or five moderately long stiff black bristles ; 
pars cephalica quite convex and well separated from pars 
thoracica; with little or no hair but bristles are numerous 
around eyes and especially between both pairs of median 
eyes and below ame. 
Eyes. — Eight in two rows, only ame dark. Viewed from 
above, both rows of eyes recurved. Viewed from in front, 
anterior row moderately proeurved. Central ocular quad- 
rangle only slightly wider behind than in front, wider be- 
hind than long in ratio of about 13 : 11. Ratio of eyes 
ame : ale :: pme : ple=4.5 : 4.5 :: 4 : 3.75 (ratios are 
difficult to establish with accuracy), ame separated from 
one another by slightly more than their diameter, from 
