116 l\rr. C. J. With on Chelonethl 



genital opening there arc a number of irregularly placed 

 hairs. 



Palps. — The palps are shorter and less poAvcrful and there 

 are small difiercnees in the relative measurements. Tlic 

 dorsal prominence of the trochanter seems to be smaller, but 

 more marked off; the hand is, compared "svith the tibia, 

 both longer and broader than in the male ; it is as high as 

 broad. 



Coxa?. — The fourth pair of coxae has the hindmost margin 

 straight and docs not possess any coxal sac. 



Legs. — The claws of the first (and probably also the seconrl) 

 pair of legs are difierent from those of the male ; both claws 

 bear teeth, but that of the posterior claw is i)laced under the 

 summit, not anteriorly as usual. The first pair of logs differs 

 from those of the male by the greater slenderness of the tibia 

 and tarsus (fig. 4/i), as well as by the shape of the latter, 

 ■which is of equal breadth throughout. 



Colour. — The palps and maxillre are dark reddish brown, 

 Avith the hands darker; the head and last abdominal tcrgites 

 dark, more blackish brown, while the thoracic and first three 

 abdominal tergites are lighter, the latter with white inter- 

 aiticulate membranes. The coxae and foremost part of the 

 abdomen below are yellowish, while the hindmost portion is 

 brownish. 



Measurements. — Cephalothorax 1'.232 (T.^GO) ; abdomen 

 2-20 (1-596) mm. 



Palps: trochanter 0-G60 (0-361); femur 1-350 (O'lO) ; 

 tibia 1-354 (0-455); hand 1326 (0675), height 0672; 

 fingers 0*765 mm. 



Leg i. : femur 0-765 (0-213), trochantin 0-405 (0-265) ; 

 tibia 0-6C0 (0-168) ; tarsus 0-532 (0-112) mm. 



Material. — I have examined two males and one female, 

 which are perhaps not quite full-grown, from Socotra. 



Remarks. — This species is very similar to C/i. Simoni, Bal., 

 from Sierra Leone (ii, p. 529). The following are my 

 reasons for establishing a new species : — Ch. Simoni, of which 

 Ikilzan has examined full-grown specimens, is a much smaller 

 species; its cephalothorax is distinctly longer than broad, 

 both in male and female ; the median abdominal tergites 

 have only three hairs in front of the row along the hindmost 

 margin of the sclcrite ; the fingers are distinctly longer than 

 the hand is broad; the hand is shorter than the cephalothorax; 

 the hairs along the inner side of the palps are distinctly 

 longer than those along the outer. 



