HANSEN AND SÖRENSEN, THE TARTABIDES. 59 



Measiiremeiits. — Body 9 5.5 mm.; palps c^ 2.5, 9 2.4 mm.: 

 first legs 9 6.4 mm.; fomth legs ef 6.5, 9 5.3 mm. — The male 

 specimens have been exsiccated so that tlie accurate lengtli 

 of the body can not be stated, but the head is nearly as long 

 as, and at least not longer than, in the female; the distal half 

 of first legs is wanting, but these legs have been very long. 



Coloiir. — The preservation does not allow any statement 

 on the colour; it has probably been nearly as in T. suhocu- 

 latus and T. procents . 



Locality. — Siam: Bangkok. Four specimens, collected 

 by Dr. E. Haase, are preserved in the Berlin Museum. 



Remarks. — The male is easily distinguished from all 

 other forms by the very long process from the last abdominal 

 segment and by the thick distally trilobate flagellum. The 

 female can be separated from the other species by the shape 

 of the trochanter of the palp together with the dimensions 

 of the joints in the foot of first legs and the slenderness of 

 the femur of fourth legs. 



4. Trithyreus procerus n. sp. 

 Male and Female. 



Pl. 5., figs. 3 a— 3 k; Pl. 6., figs. 1 a— 1 b. 



Cephalotliorax. — Head with an oblong, rather small påle 

 spöt on each side. Cephalic sternum much longer than broad. 

 Second thoracic segment with a sharp suture allowing flexion. 



Palps. — 3Iale (figs. 3 a and 3 b): Rather slender, scar- 

 cely half as long as the body. Trochanter with its lower 

 anterior part produced into a small triangle, the front margin 

 conspicuously concave and the angle about 75°. Femur has its 

 lower part triangulär, the angle sharp and protruding, and 

 its tip is a little longer from the proximal than from the distal 

 end of the upper margin of the joint. Patella is slightly more 

 than two and a half times longer than deep. Claw scarcely 

 half as long as the upper margin of tarsus. — Female (fig. 3 d): 

 Rather slender, a little more than half as long as the body. 

 Trochanter (fig. 3 e) has the lower anterior margin slightly 

 concave above and a Uttle convex below, the angle is rounded 

 and measures about 100°; the other joints as in the male. 



