294 ME. C. J. WITH ON SOUTH-AMEEICAlSr CHELIPEEIN^ 



long as wide, is rather gradually convex posteriorly ; the tihia, which has a very long 

 and slender stalk and is 2'3 as long as wide, is anteriorly slightly convex and posteriorly 

 beyond the elongated basal elevation first concave and then moderately convex. Hand 

 is 1"2 as wide as tibia, but 1*1 as long, and 1'4 as long as the finger, which is almost 

 1"4 as long as hand is wide. The position of this species cannot yet be regarded as 

 secure. — Venezuela. 



38. Chelifer subovatus, sp. n. (Plate XXXI. figs. 26 a-f.) 



Male. 



Cephalothorax. — Ocular spots rather indistinct. The cephalothorax, which is some- 

 what longer than wide, has the anterior broad transverse stripe fairly prominent and 

 straight, like the rather indistinct posterior one. The integument is almost smooth 

 or completely so, with rather long hairs. 



Abdomen. — The abdomen, which is long and slender, has all the tergites, with the 

 exception of the fii'st and hindmost part of the eleventh, longitudinally divided ; the 

 sclerites are smooth and have along the hindmost margin from 12-14 not very long 

 hairs, and in front of the row in the median segments two lateral and a single median 

 hair, as far as could be observed ; last segments with " tactile " hairs {cf. below). 



AntenncB. — The slender and fairly long galea, which extends distinctly beyond the 

 terminal hair, has distally about six branches, decreasing towards the end. 



Falps (PI. XXXI. figs. 26 a-d). — The palps are only minutely and not very distinctly 

 granular posteriorly in the trochanter and anteriorly in the three following joints. 

 The hairs are fairly long or long ; the usual slender and completely simple hairs are 

 partly missing in specimens examined. The trochanter, which is 1-6 as long as wide, 

 is anteriorly slightly convex, and posteriorly produced into a short rounded pro- 

 tuberance ; dorsally it is prolonged into a deep, somewhat conical and rounded 

 protuberance, and its depth is lower than that of the femur. The femur has a short 

 and well-defined stalk, beyond which it is distinctly attenuated. It is scarcely twice 

 as long as wide ; the anterior outline is moderately convex and then slightly concave, 

 while the posterior, beyond the stalk, is very abruptly convex and then almost straight; 

 dorsally it is even more suddenly raised and then very slightly convex to the end. The 

 tiMa, which has a rather short and well-defined stalk, is a little longer and wider than 

 the femur, and it is 1'8 as long as wide; anteriorly it is very strongly convex, almost 

 semicircular in the middle, and scarcely concave terminally ; posteriorly, beyond the 

 prominent condylus and low, but fairly distinct, basal elevation, it is almost straight 

 and then terminally distinctly convex ; the dorsal outline is only slightly convex, while 

 the ventral is moderately so. The chela, which is 2*8 as long as wide, is about I'l 

 broader than the trochanter is long; the hand, which is a little longer and 1'3 wider 

 than the tibia, is 1'8 as long as wide,^about 1*1 wider than deep, and almost 1*4 as 

 long as the fingers, which are almost 1'2 longer than the hand is wide, and scarcely 



