308 ME. C. J. WITH 0^^ SOUTH-AMESICAJN" CHELIFERINiE 



posterior one is slightly curved forwards. The integument is polished, and either 

 completely smooth or very minutely granular, at least in front of the median transverse 

 stripe ; the hairs are rather short. 



Abdomen. — The long and slender abdomen has all the tergites with the exception of 

 the first and the eleventh more or less distinctly divided by a fine longitudinal line. 

 The tergites have their sclerites rather polished and completely smooth or slightly 

 shagreened, and the median ones have along their hindmost margins at least 16 

 moderately long hairs in addition to a single median and generally two lateral ones in 

 front of the row ; the arrangement and number of the tactile hairs are as in the 

 preceding species [of, above). 



Antennae. — The galea, which extends very much beyond the terminal liair, is 

 moderately long and bifurcate, each branch with a number of ramifications. 



Fal2:)s (PI. XXXI. figs. 31 a-b ; text-fig. 76). — The palps are smooth, or almost so, 



and polished, except the dorsal protuberance of the trochanter and at least the anterior 



surface of the femur and tibia, which are minutely granular; the hairs 



are generally long. The trochanter, which is 1-6 as long as wide, is ®^'" ^" ' • 



anteriorly slightly convex and posteriorly produced into a basal, f(~/\ 



rounded, and fairly prominent tubercle ; dorsally it is prolonged into / \ 



a deep, somewhat conical, and obtusely-pointed protuberance, which, | I 



as shown in test-figure 76, has rather a peculiar shape and has the point I / 



directed upwards and towards the extremity ; the trochanter is much [ C 



deeper than wide and is as deep as the femur. The femur has a fairly \[ J 



long and well-defined stalk, beyond which it is slightly attenuated \ j 



towards the end. It is distinctly 2-2 as long as v/ide ; the anterior ^ 



outline is very slightly convex and then a trifle concave, while the ^^- «''£'«»«*«"■«« 



Thor (S Tro- 

 posterior, beyond the stalk, is rather abruptly convex and then almost '' ' 



straight; dorsally it is gradually but distinctly convex, most raised of right palp in an- 

 just beyond the middle and then concave ; it is about as wide as deep, terior view. x24. 

 The tibia, which has a fairly long and well-defined stalk, is a little 

 longer and wider than the femur and is 2"1 as long as wide : anteriorly it is beyond 

 the stalk distinctly convex, and posteriorly beyond the condylus and slightly marked 

 basal elevation almost straight or even a trifle concave and then terminally distinctly 

 convex; ventrally it is moderately convex and dorsally slightly produced, while the 

 antero-dorsal surface has generally a moderately deep and rounded tubercle, but some- 

 times a deeper and more conical one, resembling that of Ch. machrochelatus Tom. 

 The chela, which is 2'8 as long as wide, is almost 1'2 broader than the trochanter is 

 long ; the hand, which is somewhat longer, but 1'4 wider, than the tibia, is about 1-6 

 as long as wide, scarcely !•! deeper than wide, and about 1"3 as long as the fingers, 

 which are distinctly 1"2 longer than hand is wide, but scarcely 1-2 longer than hand is 

 deep, and which gape slightly ; the lateral outlines are moderately convex, while the 



