562 REV. O. p. CAMBRIDGE ON NEW ARANEIDEA. [JunC 19, 



lately received an immature female from Rockhamptou, N. S. W., 

 through Mr. £. Jauson. 



Cyrtarachne hobsoni, sp. n. (Plate LVI. fig. 3.) 



Adult female, length 5^ lines. 



The cephalothorax of this Spider is of the same general form as 

 that of C. longipes ; but the prominence on which the four central 

 eyes are placed is much less projecting, and the spines are much 

 shorter ; besides the three in the central longitudinal line (of which 

 the middle one is much the longest and strongest, the other two 

 being very short), there are two or three other short ones on each 

 side in an oblique line, between the long central spine and the lateral 

 eyes. The colour of the cephalothorax is dark yellowish brown, 

 thinly clothed with hairs, and rather paler on tlie fore part of 

 the caput. 



The eyes of the central group form a square, those of the posterior 

 pair being rather larger than the anterior ones ; those of each lateral 

 pair are close together on a prominence, and very small, but widely 

 removed from the central group. 



The leffs are short and rather slender ; there is very little, if any, 

 difference in length between those of the first and second pairs, 

 those of the third pair being the shortest ; they are of a brownish 

 yellow colour, annulated, but not very distinctly, with darker yellow- 

 brown ; the femora are palest, but most distinctly annulated ; the 

 legs are destitute of spines, being furnished with hairs only. 



The pa/pi are short, slender, and similar to the legs in colours 

 and armature. 



The/alces are moderately long and strong, and perpendicular, and 

 of a dark yellow-brown colour. 



The maxillce and labium exactly resemble those of A. trispinosa 

 in form, and are of the same colour as the falces. 



The sternum is of a triangular form, its fore side hollowed, and 

 its colour yellow-brown. 



The abdomen is of great size, of a corneous nature, and appears 

 to overwhelm the cephalothorax ; it is of a short heart-shape, its 

 shoulder-portions, as well as the posterior extremity, being large, 

 prominent and rounded, and, together with the sides, studded with 

 round, raised, dark red-brown bosses or protuberances of various sizes; 

 the two largest of these are placed one on each of the summits of the 

 shoulder-portions ; the three next in size form a triangle on the 

 hinder portion ; the sides are deeply rugulose ; the ground-colour 

 of the upperside is a lightish yellow-brown ; in the hollow centre 

 of the fore side is a large, yellow, somewhat irregularly formed patch, 

 with an irregular black marking on each shoulder-part, and two 

 other longer ones, one on each side, near the hinder portion. The 

 underside is darker than the upper, its lateral portions marked 

 strongly but irregularly with connected brown streaks. 



The example from which the above description has been made was 

 received from Bombay, where it was found, and kindly sent to me, 

 by Major Julian Hobson. Three other examples, similar to the one 



