N0.1253. SOME ARACHNIDA FROM PORTO RICO—BANKS. 227 
beneath; trochanter IV with one spine above, femur IV with a vow of 
iive large spines below and one at tip above; several near tip of the 
patella; a few small ones on tibia; tarsi of fore legs four-jointed, 
hind tarsi six-jointed, the basal joint longer than the others. 
Length of body, 5.5 mm. 
One specimen from El Yunque, 2,800 feet, February (Richmond). 
This species is evidently related to Styj)helu8flavitars!s Simon, from 
Guadeloupe, but it has not the tarsal arrangement of that genus, so I 
retain it in the genus Stygnus. The tarsal characters, in my opinion, 
are scarcely of generic value. In Simon's species the ocular spine is 
not bitid at tip, and there are only two large median spines behind. 
EXPLANATION OF PLATE XV. 
Fig. 1. Prostheclina signata, spider. 
2. Pardosa porto-ricensis, spider. 
3. Pardosa porto-riceiuis, epigynum. 
4. Prostheclina signata, epigynum. 
5. Cynorta obscura, side view. 
6. Prostheclina signata, palpus. 
7. Stygnus insulanus, side view. 
