278 ME. C. J. WITH ON SOTJTH-AMEEICAN CHELIFEEIN^ 



straight and then moderately convex. The chela, which is about 2"7 as long as wide, 

 is almost I'o as broad as the trochanter is long ; the hand, which is somewhat longer 

 and scarcely 1'5 wider, is 1'6 as long as wide, a little wider than deep, and 1*4 as long 

 as the fingers, which] are distinctly longer than the hand is wide and do not gape 

 when closed ; the lateral outlines are moderately convex, while the dorsal outline 

 beyond the stalk is at first abruptly convex and then slightly so. The immovable 

 fino-er bears anteriorly, as well as posteriorly, three accessory teeth, while the movable 

 finder has two only. The number of " sjjots" is small, for the immovable finger has 

 only four and three, anteriorly and posteriorly respectively, while the movable finger 

 has only a single one on each side ; they are arranged as shown in figures (figs. 19 b-c). 

 Coscce. — The second and the third pair are very similar to those of Ch. hicolor Balz. 

 icf. fig. 15 e), but seem to be comparatively shorter ; the fourth pair have the com- 

 paratively shorter inner margin merging into the hinder without any limitation, and 

 are slightly widened out towards the extremity. 



Legs. — The proximal joints are only indistinctly granular. The fairly long hairs 

 are dorsally slightly clavate,''obtuse or dentated, and ventrally pointed and more or le ss 

 simple ; the tarsal " tactile " hair is two-thirds removed from, and much longer than 

 distance to, tip. The legs are moderately long and slender ; the trochantin of the 

 first pair is scarcely deeper than the femur proper, and its tibia scarcely as long as the 

 tarsus, which is 3-9 as long as deep. The femur of the fourth pair is 2-5 as long as 

 deep, almost 2-2 as long as the tibia, and I'T lower than the tarsus is long. 



Colour. — Palps are reddish brown ; cephalothorax dark broAvn, with the exception of 

 the yellow second tergite, which has a quadrangular black spot in the middle. Tergal 

 sclerites brown. 



Measurements. — Cephalothorax 0-621 (0-600) ; abdomen 1-610 (1-081) mm. 

 Palps: trochanter 0-276 (0-184); femur 0*481 (0-227); tibia 0-483 (0-240); hand 

 0-552 (0-345), depth 0-335 ; finger 0-375 mm. 



Leg I.: femur 0-312 (0-122), trochantin 0-076 (0-122); tibia 0-228 (0-085); 

 tarsus 0-236 (0-061) mm. 



Leg IV. : femur 0-410 (0-167) ; tibia 0-350 (0-106) ; tarsus 0-281 (0-072) mm. 

 Material. — Of this species I have examined a single female, collected by Dr. Meinert 

 on a road in the month of July, La Guayra (Caracas). Balzan's specimens are also 

 from Venezuela. 



Bemarh. — That the animal described really belongs to Ch. sicbrotundatus is some- 

 what doubtful, as the latter has the cephalothorax longer than wide, the femur of the 

 palps only twice as long as wide, a prominent bas-al elevation on the tibia posteriorly, 

 and the hand basally much more abruptly convex, especially anteriorly ; the two last- 

 mentioned structures may perhaps be explained by the fact that the chela has not been 

 figured in a true dorsal view, and that they have been somewhat exaggerated by the 

 artist as well as the engraver. 



