IN THE BEITISH AND COPENHAGEN MUSEUMS. 225 



Measurements. — Cephalothorax 1-06 (0-88) ; abdomen 1-84 (1-27) mm. 



Palps : trochanter 0-552 (0-322) ; femur 1-472 (0-253) ; tibia 1-288 (0-299) ; hand 

 1-127 (0-437), depth 0-437 ; finger 0-805 mm. 



Leg I. : femur 0-638 (0-190), trochantin 0-122 (0-198) ; tibia 0-456 (0-122) ; tarsus 

 0-395 (0-089) mm. 



Leg IV. : femur 0-836 (0-296); tibia 0-646 (0-160) ; tarsus 0-456 (0-122) mm. 



Material. — Of this very interesting species from Brazil I have examined tw 3p3ci- 

 mens, a male and a female. 



Remarks. — It is not without hesitation that I have referred the two specimens ( d ? ) 

 to the same species, as the differences in their whole appearance are so striking, and as 

 the finger of the female is somewhat longer than in the male, Avhile the contrary is 

 generally the rule ; but as they were found together, and as great similarity is found in 

 the structures which are not subject to sexual variation, I think that the course I liave 

 taken is the best one. They differ from Ch. cancroides L. in the hand, which is much 

 shorter than tibia and longer than finger, together with numerous other characters 

 taken from minute structure of claws, coxal sac, &c. 



3. Chelifee res, sp. n. (Plate XXIX. figs. 2a-e.) 



Male. 



Cephalothorax. — One pair of fairly distinct convex eyes. Cephalothorax as long as 

 wide behind. Two not very prominent, almost straight transverse grooves present. 

 Cephalothorax uniformly and distinctly granular everywhere, but besides on each side 

 provided with at least 20 very small tubercles, each bearing a single very short and 

 distinctly clavate hair. 



Abdomen. — The abdomen is moderately slender and depressed, with almost parallel 

 sides. All tergites except the hindmost part of the eleventh with distinct longitudinal 

 line. Tergites without trace of longitudinal lateral keels. Skin everywhere distinctly 

 granular with scale-shaped granules. The first to the eighth tergites each bear 

 along the hindmost margin a row of 14 short, distinctly clavate hairs, while the ninth 

 and the tenth bear only ten or twelve ; the third tergite bears in addition to those in 

 the roM' a lateral hair on each side, in front of the row, while all the following 

 segments bear six hairs in front. The eleventh tergite bears about eight hairs 

 and a number of small round spots, and so does the corresponding sternite (cf 

 Ch. imperator, sp. n., in which the number appears to be greater). 



Antennce. — The terminal hair extends very markedly beyond the galea, which is 

 short, suddenly attenuated in terminal third, with three short terminal teeth. 



Palps (PI. XXIX. figs. 2 a-c). — The mamllce are scarcely granular at all in the 

 middle, but fairly distinctly so laterally. The palps, with the exception of the 

 fingers, are distinctly granular, especially the three basal joints laterally and above ; 



VOL. XVIII. — PART III. No. 2. — October. 1908. 2 i 



