370 
Psyche 
[December 
Description. Total length, including extended chelicerae, 11.96 
mm. Carapace nearly 5.2 mm long; nearly 3.9 mm wide opposite 
second coxae where it is widest; nearly 1.69 mm tall; arched from 
PME to beginning of gradually sloping posterior declivity opposite 
interval between second and third coxae; with a well defined median 
thoracic groove; with cephalic region considerably raised. Eyes: 
eight in two rows as usual in the genus; viewed from above, anterior 
row gently recurved and poster row slightly procurved; viewed from 
in front, anterior row gently procurved. Lateral eyes on gently 
raised tubercles. Height of clypeus nearly 1.33 times the diameter 
of AME. Ratio of eyes AME : ALE : PME : PLE = 16 : 10 : 
10 : 11. AME separated from one another by a little less than their 
radius and from ALE by slightly less than their diameter. PME 
separated from one another by nearly 1.5 times their diameter and 
from PLE by nearly 2.7 times their diameter. Central ocular quad- 
rangle wider in front than behind in ratio of nearly 20 : 17; slightly 
wider in front than long. Chelicerae : robust; very gibbous dorsally 
at base; promargin of fang groove with three teeth and a fairly well 
developed scopula; the retromargin has four teeth the first of which 
is minute. Maxillae: convergent but not meeting beyond lip; abruptly 
truncate distally; with a well developed scopula. Lip: quite typical 
of the genus in general; widest just below middle where it is slightly 
wider than long. Sternum: quite typical of the genus in general; 
widest between second coxae; nearly four-fifths as wide as long; 
posterior end just opposite bases of fourth coxae which are separated 
by nearly one-fifth of their width. Legs: 4123 in order of length; 
all legs with spines. Palp: important features shown in Figures 8- 
10; tibial apophysis quite distinctive. Abdomen: essentially typical 
of males of the genus ; with a very small, poorly defined, dorsal, basal 
scutum which is somewhat better defined in some paratypes. Color 
in alcohol: carapace and chelicerae a rich, dark, reddish brown; 
maxillae, lip, palps, legs and sternum all yellowish-brown with varia- 
tions too indefinite to describe in detail; sternum finely pitted and 
with short, stiff hairs. The abdomen is a purplish-brown dorsally 
and dorsolaterally ; ventrally it is light yellowish; there is a narrow, 
irregular purplish band ventral to the spinnerets. 
Diagnosis. This species appears to be closely related to Corinna 
hulbosa F. P.-Cambridge and Corinna robusta Chickering now well 
known from the same locality. The features of the male palp defi- 
nitely establish it as a new species. 
Records. Three male paratypes are in the collection from the 
Panama Canal Zone as follows: Gatun, March 6, 1958; Barro Colo- 
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