IN THE BEITISH AND COPENHAGEN MUSEUMS. 259 



of the first pair much deeper than the tibial part, while the tibia is I'o longer than 

 the tarsus, which is 3-3 as long as deep. The femur of the fourth pair of legs is 2-4 

 as long as deep, 1-2 as long as the tibia, and 1-3 lower than the tarsus is long. 



Colour. — Tlie palps are darli reddish brown ; the cephalothorax, which has a some- 

 what lighter hinder margin, is brown and so are the tergal sclerites. 



Measurements.— Ce\i\\8\Qi\iox^.^ 1-104 (0-989) ; abdomen 2-80 (1-73) mm. 



Palps: trochanter 0-606 (0-355J ; femur 0-897 (0-410) ; tibia 0-910 (0-437); hand 

 1-035 (0-500), depth 0-414; fingers 0-713 mm. 



Leg I.: femur 0-623 (0'217), trochantin 0-114 (0-236); tibia 0-456 (0-137); 

 tarsus 0-342 (0-103) mm. 



Leg IV.: femur 0-874 (0-365) ; tibia 0-707 (0-198) ; tarsus 0-426 (0-129) mm. 



Material. — Of this species I have examined a single female from Brazil mounted 

 together with Ch. itnperator, sp. n., &c. 



This species seems to differ from the three following by the presence of a fairly 

 distinct median transverse groove ; it differs besides from Ch. gracilis Ell. by the 

 granular cephalothorax, the slightly clavate hairs, and by the hand, which is 

 scarcely 1*1, not 1-5, as long as the tibia; from Ch. robiisttts Balz. by the less slender 

 femur, being 2-2 instead of 2'7 as long as wide, and more slender chela, being 3-5 

 instead of 3 as long as wide ; from Ch. subrobustus Balz. by much more clumsy tibia 

 and more slender chela, which is 3-5 instead of scai-cely 3 as long as wide and has 

 only a few spots anteriorly on the movable finger. 



15. Chelifer gracilis Ell. 

 1902. EUingsen, (15) pp. 148-149. 



Cephalothorax smooth, without transverse grooves, and with short simple hairs. 

 Femur, which is distinctly attenuated, is anteriorly proximally slightly convex and 

 then distinctly concave and posteriorly " regulierement et mediocrement convexe"; 

 tibia with strong stalk and " presque regulierement ovale " ; the hand, which is some- 

 ■what wider and 1-5 as long as the tibia, is 1*5 as long as the finger. — Ecuador. 



This species is distinguished from the others of this group by the very long hand. 



16. Chelifer roblstus Balz. 



1890. Balzan, (10) pp. 418-420, tav. xiii. figs. 6-6 6. 



1891. Balzan, (11) p. 548. 



Cephalothorax minutely granular, without transverse grooves and with short dentated 

 hairs. The femur, which scarcely seems to be attenuated, is 2-7 as long as wide; the 

 tibia, which is 2'3 as long as wide, has outlines slightly convex ; the hand, which is 

 scarcely 1-i as long as, but 1-4 as wide as, the tibia, is 1"6 as long as the finger; the 

 chela is about 3 as long as wide. — Paraguay and Brazil. 



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