OCR Text |
Show 562 REV. O. P. CAMBRIDGE ON NEW ARANEIDEA. [June 19, lately received an immature female from Rockhampton, N. S. W., through Mr. E. Janson. 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 the 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 legs 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 palpi are short, slender, and similar to the legs in colours and armature. The falces are moderately long and strong, and perpendicular, and of a dark yellow-brown colour. The maxillcs 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 |