Peckham—Spiders of the Family Atiidae. 231 
fall becoming steeper after the first half of the thoracic part. 
The narrowest point is in front, the sides spreading out widely 
to the middle of the thoracic part, so that the cephalothorax has 
a rounded appearance. The quadrangle of the eyes is nearly 
twice as wide as long, is wider behind than in front, and oc¬ 
cupies two-fifths of the cephalothorax. The front eyes are 
moderately large and form a straight row. The middle eyes 
are close together and are twice as large as the lateral, which 
are separated from them. The second row is slightly nearer 
the first than the third, and the third row is plainly narrower 
than the cephalothorax. The sternum is round. The anterior 
^ coxae are separated by the width of the labium which is longer 
than wide. The falces are strong and are rounded out in front. 
All tiie legs are spined. The first pair has, besides lateral 
spines, three pairs under the tibia, and two pairs under the meta¬ 
tarsus. 
Klamathia is most, nearly related to Thyene, but differs from 
that genus in having the quadrangle of the eyes nearly twice as 
wide as long. 
Klamathia ftava sp. nov. 
Plate XXYI, figs. 4-4d. 
$. Length 8 mm. Legs 1342, second, third and fourth not 
differing much in length; first pair stoutest. 
This is a yellow species with black spines., black spots around 
the eyes, and four indented dots on the abdomen. 
The body, legs, palpi and falces are yellow or yellowish- 
brown. Our specimens are rubbed nearly bare but there re¬ 
main. thick white hairs on the clypeus and around all the eyes, 
while above the eyes, both in front and on the sides, there are 
bright red hairs. There is a white line around the lower mar¬ 
gin of the cephalothorax. The abdomen and legs have a thin 
scattering of black and white hairs. The palpus has some 
rather long white hairs. The falces are stout and bulge out 
in front; they have a single tooth on the lower margin. On the 
inner and lower edges are long white hairs. 
