ARANEA, 443 
ber and various arrangement of their eyes, their 
remarkable instincts, and curious structure, inter- 
est every nice observer. For these and other rea- 
sons I insert all the species of Gmelin, according 
to his arrangement. As some species may be ob- 
tained at all times of the year, they afford perpetu- 
al materials for the exercise of students in natural 
history. 
A. Eyes placed :::: 
extensa, abdomen long, silvery-greenish ; legs 
longitudinally extended. ‘The head, thorax, 
and legs, arereddish ; the abdomen is greenish 
down the back; the first pair of legs very long ; 
the third very short. 
pallens, pale testaceous ; mandibles ferruginous, 
with black claws. 
albidorsa, black and hairy ; abdomen obovate, 
slender, two-horned ; thorax slender, compress- 
ed laterally ; back of thorax and abdomen cov- 
ered with white hairs ; the white ridge on the 
abdomen interrupted. Found at Troy, N. Y. 
I propose it as a new species because it is not 
described iu Gmelin. It may be described by 
other authors, which I have not seen. Eaton.* 
lobata, abdomen evate, lobed, white, with double 
brown lines at the tip. 
longimana, ferruginous ; abdomen long, cylindric- 
al, brown; the fore-legs very long, third pair 
very short. 
regia, villous, cinereous, with a yellow band on 
the front ; the legs are spinous. 

* As very few spiders have been examined and credited in this dis- 
trict, I have spent afew hours this day (Sept. 15,) in examining those 
Ffind about the Rensselaer School lot. Iinsert them as a beginning. 
