222 
Psyche 
[September 
Height of clypeus nearly equal to diameter of AME. Chelicerae: 
robust; not definitely geniculate near base as in some other species 
from this region such as T. bravidus sp. nov. ; slightly divergent; 
granulose as usual ; lateral margins nearly straight ; medial margins 
without keel and concavity hardly indicated; fang regularly curved; 
fang groove with three teeeth along promargin and two along retro- 
margin ; with a fairly well developed basal boss. Maxillae and Lip : 
essentially as described for T. bravidus sp. nov. and T. cadulus sp. 
nov. with minor differences (Fig. 9). Sternum: moderately convex; 
with fairly typical margins and lateral extensions; longer than wide 
in ratio of nearly 39 : 30; widest between second coxae; terminates 
in a rounded point between bases of fourth coxae which are separated 
by nearly one-third of their width ; anterior border trilobed as shown 
in Figure 10. Legs: 1243 in order of length; no true spines observed; 
numerous but not conspicuous cusps occur on tibiae, metatarsi and 
tarsi of legs one and two. Palp: essential features shown in Figures 
1 1- 1 3 ; with few slender spines; parts obscurely distinctive; tibial 
apophysis very short and barely distinguishable. Abdomen : in general 
typical of males of the genus; with a faintly outlined dorsal scutum 
covering the major part of the dorsum; the epigastric region anterior 
to the genital groove faintly chitinized. Color in alcohol : typical of 
males of the genus; details regarded as unnecessary for description. 
Diagnosis. This is another species which seems to be closely related 
to T. bicolor Keys. The palpal features, the relationships of the 
eyes, specific shape of the maxillae and a few other specific features 
establish it as a new species. 
Record. The female is unknown and there are no male paratypes. 
Trachelas ecudobus sp. nov. 
Figures 14-19 
Holotype. The male holotype is from Trinidad, W. I., St. Au- 
gustine, April 5, 1964. The name of the species is an arbitrary 
combination of letters. 
Description. Total length, including somewhat extended cheli- 
cerae, 4.18 mm; excluding the chelicerae, total length is 4 mm. 
Carapace 2 mm long; 1.34 mm wide opposite second coxae where 
it is widest ; nearly 0.66 mm tall in cephalic region where it is tallest ; 
gradually raised from posterior border to highest part a short distance 
behind PME; otherwise essentially typical of males of the genus. 
Eyes: eight in two rows as usual in the genus. Viewed from above, 
anterior row gently procurved, posterior row moderately recurved. 
Posterior row occupies nearly nine-tenths of width of carapace at 
