300 MR. C. J. WITH ON SOUTH-AMERICAN CHELIFERINiE 



Palps (PI. XXXI. figs. 28 a-c). — The palps are smooth except on the anterior 

 surfaces, which are minutely and not very distinctly granular. The hairs are fairly 

 long or long. The trochanter, which is 1"6 as long as wide, is almost straight anteriorly, 

 and posteriorly is produced into a short basal protuberance ; dorsally it is prolonged 

 into a very deep, almost triangular, somewhat blunt process, and its depth is only a 

 little less than that of the femur. The femur has a short and well-defined stalk, 

 beyond which it is slightly attenuated towards the extremity. It is 1-9 as long as wide 

 and distinctly (IT) deeper than wide; the anterior outline beyond the stalk is first 

 slightly convex and then a trifle concave, while the posterior, beyond the stalk, is very 

 abruptly convex and then slightly so or almost straight ; dorsally it is more suddenly 

 and more strongly convex beyond the stalk, and then slightly convex, most raised 

 towards the middle, from which it slopes towards the end. The tihia, which has a 

 long, slender, fairly well-defined stalk, is longer but scarcely wider than the femur, and is 

 distinctly twice as long as broad ; anteriorly it is distinctly convex and then terminally 

 a trifle concave, while posteriorly, beyond the fairly prominent condylus and not very 

 pronounced basal elevation, it is first almost straight and then distinctly convex ; the 

 ventral margin is regularly and strongly convex, while the dorsaljust beyond the stalk is 

 rather suddenly, but not very distinctly, convex for a short distance and then almost 

 straight, sloping towards the end. The chela, which is ahnost three times as long as 

 wide, is about IT as broad as the trochanter is long ; the hand, which is as long as, but 

 almost 1-3 as wide as the tibia, is almost 1"4 as long as wide, scarcely IT deeper than wide, 

 and is scarcely 1-3 as long as the fingers, which are 1-3 as long as the hand is wide, 

 but 1'2 as long as deep, and which gape a trifle when closed ; the anterior outline is 

 moderately convex, but the posterior as well as the dorsal and ventral ones are only 

 slightly convex. Anteriorly both fingers bear about three accessory teeth towards the 

 end [cf. fig. 28 c), while the number is about ten posteriorly on the immovable as 

 well as on the movable finger. The immovable finger has anteriorly, behind and 

 between the basal " tactile " hairs, about twelve spots, and beyond about five, while 

 the movable finger has eight spots in the basal two-thirds {cf. fig. 28/) ; posteriorly the 

 immovable finger has beyond the basal tactile hairs six and the movable finger four spots. 

 Coxce.—The fourth pair are more quadrangular than triangular and have the hinder 

 and inner margins, which are well limited from each other, of almost equal length. 



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

 the tibia of the first pair of legs is 1*1 as long as the tarsit,s, which is 4-7 as long as 

 deep; \h.e femur of the fourth pair of legs is 2-6 as long as deep, 1-2 as long as the 

 tibia, and 1*6 lower than tarsus Ions:. 



Colour.— The palps and head are reddish brown, the rest is pale brown or yellowish. 

 IfeftSMrememfo.— Cephalothorax 0-920 (0-805) ; abdomen 2-760 (0-989) mm. 

 Palps: trochanter 0-460 (0-305) ; femur 0-805 (0-414); tibia 0-851 (0-414); hand 

 0-851 (0-515), depth 0-552 ; finger 0-667 mm. 



