Figs. 18-22. S. flavescens Simon. 18. Carapace of female. 19-20. Left pal- 
pus. 19. Ventral view. 20. Ectal view, expanded. 21. Female genitalia, 
dorsal view. 22. Epigynum. Figs. 23-24. S. scleropsis, new species. 23. Pal- 
pus. 24. Carapace of male. Figs. 25-27. S. ajo , new species. 25. Female gen- 
italia, dorsal view. 26. Epigynum. 27. Carapace of female. (Abbreviations: 
C, conductor; E, embolus; M, median apophysis; R, radix; T, tegulum). 
Description. Carapace slightly yellowish, otherwise colorless. Six 
eyes. Anterior eyes one diameter apart. Posterior median eyes one- 
third diameter apart, almost touching laterals. Chelicerae with one 
blunt tooth on anterior margin. Abdomen wider than long when filled 
with eggs, otherwise longer than wide. It is not known whether the 
structure on the epigynum (Figs. 3, 4) is an epigynal plug or part of 
the epigynum. As the structures of the two specimens examined differ 
slightly, it probably is an epigynal plug. Total length 1.7 mm. Cara- 
pace, 0.73 mm. long, 0.69 mm. wide. First femur, 1.72 mm.; patella 
and tibia, 1.95 mm.; metatarsus, 1.33 mm.; tarsus, 0.52 mm. Second 
patella and tibia, 1.14 mm.; third, 0.73 mm.; fourth, 1.06 mm. 
Diagnosis. The arrangement of the eyes (Fig. 1) and genitalia 
(Fig. 2) separate this species from others. 
