THE ATT I DAE OF BORNEO. 
GEORGE W. PECKHAM AND ELIZABETH G. PECKHAM. 
We owe the opportunity of seeing the Attidae here described 
to the kindness of Mr. R. Shelford, formerly curator of the 
Museum of Sarawak, by whom most of them were collected. A 
few species from our own collection have been included. 
Where other localities are not mentioned, the spiders were col¬ 
lected in the neighborhood of Sarawak. 
We have followed the classification of Simon, based upon 
the dentition of the falces, which gives us the three groups, 
Pluridentati, Fissidentati and Unidentati. 
PLURIDENTATI. 
Myrmarachne Shelfordii sp. nov. 
$. Length 5 mm., exclusive of falces. Falx 2 mm. Legs 
4132, ail slender. 
A yellowish-brown species with a wide, dark, transverse band 
on the abdomen. 
The cephalic part is on a little higher plane than the tho¬ 
racic, from which it is separated by a slight constriction. The 
quadrangle of the eyes occupies half of the cephalothorax, is 
one-fourth wider than long, and is wider behind than in front. 
The first row is slightly curved downward, with the eyes close 
together and all large, the middle not twice the lateral. The 
second row is about halfway between the others, and thle third 
row is as wide as the cephalothorax. The falces are long and 
horizontal, flattened above and below, with a stout spine on 
the upper edge at the distal end, opposite the insertion of the 
37—S. & A. 
