256 ME. C. J. WITH OlSr SOUTH-AMEEIOAiS^ CaELIFERIK".^ 



Antemue. — The galea extendi somewhat beyond the terminal hair and seems to bear 

 a few short teeth in the imperfect specimen examined {cf. Balzau, lo. fig. 9 c, S ). 

 The fiaqellum consists of four hairs, of which only the anterior has marginal teeth 

 {cf. Balzan, fig. 9 a). 



Palfs (PL XXX. fig. 10 d). — The palps are only slightly different from those of 

 the male in the proportions between the joints. The femur is only I'S as long as 

 wide, and much moi'e attenuated, terminally being scarcely as wide as the trochanter ; 

 the tibia is only 1-7 as long as wide and more strongly convex anteriorly; the chela is 

 3 times as long as wide ; the hand is only 1-2 wider than the tibia and 1-4 longer 

 than the fingers, which do not gape when closed. The number of the accessory teeth 

 is the same as in the male and the marginal teeth are much better developed. The 

 number of the "sjjofo" is almost the same as in the male, but the arrangement 

 shows a few interesting modifications, the most important being that the immovable 

 finger has a single "spot" anteriorly behind the basal hair, and posteriorly five 

 " spots " close together and a single much larger one, standing more apart, while the 

 movable finger possesses two pairs of spots, one behind the other, and a single spot 

 more apart. 



Coxce (PI. XXX. fig. 10 e). — The fourth pair are less slender and the posterior 

 margin only a little longer than the interior. 



Legs (PL XXX. fig. 10/"). — The legs perhaps less slender, especially the tarsus 

 of the first pair of legs, which is only three times as long as deep. 



Colour. — The colour is distinctly darker : dark reddish-brown palps and dark brown 

 cephalothorax and abdominal sclerites. 



Measurements. — Cephalothorax and abdomen as in the male. 



Palps: trochanter 0647 (0-506); femur 1-012 (0-575); tibia 1-035 (0-598); 

 hand 1-220 (0-690), depth 0-540 ; finger 0-897 mm. 



Leg I. : femur 0-661 (0-266), trochantin 0-170 (0-289) ; tibia 0-494 (0-182) ; tarsus 

 0-414 (0-137) mm. 



Leg IV.: femur 0-950 (0-437); tibia 0-850 (0-220); tarsus 0-502 (0-170) mm. 



Material &c. — Of this very interesting species I have only examined two specimens, 

 viz. a female collected by E. v. Benzon in Monte Rita (Brazil"?) and a male collected 

 by Dr. W. Sorensen in Argentine (Eiacho dell' Oro). Balzan's specimens are from 

 Paraguay, living under the bark of trees. 



Memarhs. — The species described is certainly identical with Balzan's, in spite of 

 slightly different proportions of the joints of the palps, somewhat smaller size, greater 

 number of hairs in front of the row and in the row on the median tergites ; a rather 

 curious difference is found in the flagellum, which has the three posterior hairs simple, 

 not dentated as in Balzan's specimens. 



