Araneides of the United. States. 367 
abdomen with a whitish band on each side above ; feet whit- 
ish, except the first pair which are rufous, 1. 4. 2. 3: 
Observations. Cuvier, in his Regne Animal, IV. p. 264, 
says that some males of Arrus have elongated cheliceres. 
But this was a female ; and a male was found in North Caro- 
lina, corresponding to this in every particular, except that the 
cheliceres were not elongated, but they were horizontal. 
The subgenus Arrus is so large that some good subdivision is 
required. Like TETRAGNATHA, this spider extends its legs in 
one line along the twig or blade on which it rests. 
Habitat. South and North Carolina. 
A male was found in Alabama, corresponding with this in 
every respect. He was bold, and moved with a ludicrous 
motion of his first pair of legs, which he waved to and fro, 
advancing towards the body which was extended against 
im, 
2. EPIBLEMUM FAUSTUM. 
Plate XXII. Fig. 17. 
Description. Piceous ; cephalothorax with the margin and 
two spots white ; abdomen with the base and four short lines 
White; feet, 1. 4. 3. 9. 
Observations. This species was found common in Cam- 
bridge, Massachusetts, on walls, on the south side. 
Habitat. Massachusetts. 
Genus Synemosyna. Mihi. MMC ud 
Characters, Cheliceres short in the females; mazille 
slightly inclined toward the tip, truncated at tip ; lip short, 
rounded ; eyes eight, unequal, in three rows, the first com- 
Posed of four eyes, the two middle ones largest, the second 
composed of two small ones placed nearer the first than the 
third, which is composed of two larger eyes ; feet slender, 
