IN THE BRITISH AND COPENHAGEN MUSEUMS. 315 



deeper than wide, but less deep than the femur. The femur has a long and fairly 

 well-defined stalk, beyond which it is scarcely attenuated towards the end. It is 

 2-3 as long as wide ; its anterior outline is almost straight, while the posterior 

 is strongly, but not very abruptly convex and then slightly so ; the dorsal outline is 

 first moderately convex and then towards the middle distinctly convex, being most 

 raised just beyond the middle, rather steeply sloping into the terminal concavity ; the 

 femur is much deeper than broad. The tibia, which has a very long and fairly 

 well-defined stalk, is distinctly longer and wider than the femur, and is 2'1 as long 

 as broad ; the anterior outline is first moderately convex, and then a trifle concave, 

 while the posterior beyond the not very prominent condylus and elongated basal 

 elevation is moderately concave and then distinctly convex ; the ventral outline is 

 almost semicircular distally and the dorsal one is distinctly produced, as the antero- 

 dorsal surface is prolonged into a deep, conical, and somewhat rounded protuberance. 

 The chela, which is 2'8 as long as deep, is scarcely 1'2 as broad as the trochanter is 

 long; the hand, which is much longer and about 1'4 wider than the tibia, is 1"4 as 

 long as wide, but scarcely 1"2 as long as deep, 1'3 as deep as wide, and about 1'3 as 

 long as the fingers, which are 1'2 as long as the hand is wide but IT shorter than 

 the hand is deep, and which gape widely when closed ; the lateral outlines of the 

 hand are only slightly convex, while the ventral one is distinctly so, and the dorsal 

 almost semicircular. Anteriorly both fingers possess at least ten accessory teeth, and 

 posteriorly about fifteen. The immovable finger has posteriorly about eleven " spots " 

 behind the basal tactile hairs, and eight in a longitudinal row beyond ; posteriorly 

 only a few are found (as seen in text-fig. 81). 



Coxce. — The fourth pair are almost exactly like those of Ch. argentinus Thor. 



Legs. — The hairs are moderately long. The legs are very long and slender ; the 

 tibia of the first pair is 1'3 as long as the tarsus, which is 4*9 as long as deep ; the 

 femur of the fourth pair of legs is 3T as long as deep, scarcely longer than the tibia, 

 and about half as deep as tarsus is long. 



Colour. — The palps and the head are dark reddish brown, the thorax is yellowish 

 brown, and the abdominal sclerites are dark brown. The legs have the anterior surface 

 yellowish, but the posterior dark brown, a difference which is most marked in the first 

 pair of legs, and which is also indicated in the preceding species. 



Measurements. — Cephalothorax 2'2 (2'0) ; abdomen 3w5 (2-25) mm. 



Palps: trochanter 1T04 (0-736); femur 1-840 (0-805); tibia 1-905 (0-920); hand 

 1-955 (1-265), depth 1-656; finger 1-541 mm. 



Leg I. : femur 1-265 (0-345), trochantin 0-230 (0-391) ; tibia 1-150 (0-230) ; tarsus 

 0:782 (0-161) mm. 



Leg IV. : femur 1-495 (0-475) ; tibia 1-505 (0-253) ; tarsus 0-920 (0-184) mm. 



Variation. — One of the two specimens, a badly preserved one from Tobasis Kapa, was 

 almost black, had the granulation of the cephalothorax more pronounced, and showed 

 minor differences in the proportions of the palps and legs. 



2u 2 



