APPENDIX. 
277 
WHITE JOINTED SPIDER. 
The fpccies of Spiders, unlefs feen recent, and in the 
utmofl: ftate of perfection, are not eafily diflinguifhed. The 
prefent fpecies is moft remarkable for the lucid furface of its 
thorax and legs, which latter are furniflied with feveral long 
moveable fpines, that may be either elevated or deprefled at 
the will of the animal: this however is not peculiar to the pre- 
fent fpecies, but is feen in fome others. The eyes are eight ia 
number, and are arranged in the fame manner as thofe of 
the great American Spider, or Aranea Avicularia of Linnasus^ 
The colour of this Spider is a clear chefnut brown, except 
the body, which is a pale brown, with a very deep or blackifh 
fafcia on its upper part, reaching about half way down. 
The orifice at the tip of each fang is very vifible by fo 
flight a magnifying power as that of a glafs of two inches 
focus : this Spider is therefore of the number of thofe which 
poifon their prey before they deftroy it. 
The Plate exhibits the back and front view, of the natural 
fize. A. the order in which the Spines are placed. The 
leffer a. two Spines enlarged, fhewing the Bracket on which 
they turn, and the Groove or Niche they fhut into whea 
clofed, C. the Fangs magnified. 
WHA 
