130 ARANEIDEA. 
2. Legs ii. only slightly longer than legs i. Central anterior eyes equal 
to or smaller than lateral anteriors. Posterior row of eyes more 
or less recurved. 
a. Central posterior eyes much further from each other than from the 
laterals. Lateral anterior eyes nearer to the central anteriors 
than to the central posteriors. Posterior row of eyes less strongly 
recurved. . 2 ew ee ee ee ee ee eee) 6 )6Pttopromus, Walck. 
6. Eyes of posterior row equidistant or centrals slightly closer. Lateral 
anterior eyes equidistant from the central anterior and central 
posterior eyes, forming with them an equilateral triangle on each 
side. Posterior row of eyes more strongly recurved . . . . AvotLopHanss, O. P.- 
B. Legs iv. longer than legs i. [Posterior row of eyes more strongly [Cambr. 
recurved. Posterior eyes equidistant or centrals closer together 
than to the laterals. Legs iii. equal to or shorter than legs iv.] 
1. Eyes of posterior row approximately equidistant. Legs ui. shorter 
by the length of the tarsus only than legs iv. Carapace and 
sternum scarcely longer than broad. Coxe iv., as a rule, more 
widely separate. Anterior ocular oval, formed by the anterior 
eyes, and the posterior centrals much less isolated from the lateral 
posteriors. Posterior row less strongly recurved. Lateral anteriors 
closer to the central anterior than to the central posterior eyes . [Tuanatus, C. Koch.] 
2. Central posterior eyes much nearer to each other than to the laterals. 
Legs iii. much shorter, by the length of the tarsus, protarsus, and 
often by half the tibia, than legs iv. Carapace and sternum much 
longer than broad. Coxe iv. adjacent. Anterior ocular oval, 
much more isolated from the posterior lateral eyes. Posterior 
row much more strongly recurved. Lateral anteriors equidistant 
from the central posterior and central anterior eyes, together 
forming an equilateral triangle on each side. . . . . . . . Tuisexuus, E. Sim. 
Of these genera no examples of the typical Thanatus have been taken in Central 
America, and the characters of the genus, the type of which is 7. formicinus (Clerck) 
[Tab. 1X. fig. 22 (¢)], are inserted only for the sake of comparison. Apollophanes 
stands upon rather slender characters, and probably represents Thanatus in the 
Western Hemisphere. Philodromus and bo, especially in considering the eye- 
formula, fall together; Apollophanes and Thanatus also fall together, while Tibellus is 
more isolated. 
EBO. 
Ebo, Keyserling, Verh. zool.-bot. Ges. Wien, 1884, p. 678. 
Type E. latithoraw, Keys. N. America. 
This genus is distinguishable from Philodromus by its very much longer second pair 
of legs and the almost straight posterior row of eyes. 
Only one species has been recorded from Central America, and I have not come across 
