HORN EXPEDITION—ARANEIDiE. 
319 
roundocl at the sides is flat, and low at the rear ; the clypeus and side edges are 
perpendicular, so as not to he visible froni above. 
Eyes .—Of the four middle, the rear are two-thirds the diameter of the front; 
they form a trapezium narrowest behind and slightly longer than broad, situated 
on a slight elevation. Front eyes their diameter distant from margin of the 
clypeus. The front side eyes, of equal size and on a common protuberance with 
the rear ones, are one-half the diameter of the middle, from which they are 
distant twice as fai’ as the latter from one another and are the same distance from 
rear as are the front and rear middle eyes. The hind row is straight and longer than 
the front, which is likewise straight though slightly recurved when seen from above. 
The Mandibles (4 mm. long) are conical truncate, smooth but with long fine 
hairs on the inner margin, claws short and strong, with openings on each side of 
the point. Three powerful teeth on each side of falx sheath. 
Alaxillce arched,widening from the base to the anterior margin,which is truncate. 
Lip longer than the base is broad, arched transversely and curved to a point 
in front; half the length of the maxillre. 
Ster7infn cordate, the two front corners projecting forward ; low protuberances 
of equal height round the sides, front and rear. 
The Abdomen is ovate, strongly arched, rounded in front and at the rear, one- 
half longer than broad; younger specimens more cylindrical and twice as long as 
broad. In two longitudinal rows down the back are three pairs of round 
depres.sions. The epigyne is a transverse oval opening, partially divided into two 
divisions by a V-shaped projection from the middle of the upper margin. 
The palpi shorter than the cephalothorax, are covered with a thick growth of 
hair except on the cubital and radial joints. 
The legs are slim, smooth and shiny, armed with long spines; the metatarsal 
and tarsal joints are only one-half the thickness of the tibial, 
Cephalothorax, 10 mm. long, 6 mm. broad in front, 8 mm. in widest part. 
Abdomen, 19| 
mm. long, 13 
mm. broad 
in front. 
Cox®. 
Troch. and 
Patella and 
Metat. and 
Total 
Femur. 
Tibia. 
Tarsus. 
length. 
Legs—1st pair 
3 mm. 
16 mm. 
12 mm. 
- 19 = 
50 nun. 
Legs—2nd pair 
- 3 „ 
- 14 „ 
- 11 „ 
- 17 = 
45 ,, 
Legs—3rd pair 
- 2 „ 
- 8 „ 
- H „ 
9 = 
24i„ 
Legs — 4th pair 
- 2^ „ 
- 13 „ 
- 9 „ 
- 13 = 
374 „ 
Relative length of legs : 1, 2, 4, 3. 
