700 R EV - °- v - CAMBRIDGE OX NEW [Nov. 18, 



abroad centrallongitudinal band marked with yellowish brown just 

 behind the eyes. 



The region of the thoracic junction is a little raised and divided 

 into two subcorneal points by a longitudinal cleft. 



The legs are rather short, their relative length 1, 2, 4, 3 ; those of 

 the first and second pairs are much the longest and nearly equal in 

 length ; the femoral joints strong, and armed along the outer side 

 with two rows of very minute spinous tubercles. The colour of the 

 legs is similar to that of the cephalothorax, obscurely anuulated with 

 pale yellowish brown and marked irregularly with red-brown. The 

 tarsi terminate with three claws, each one differing from the rest in 

 strength and curvature. 



The palpi are short and similar to the legs in colour and 

 markings. 



The abdomen is very large, and irregularly humped or protuberant 

 on its surface ; the two leading protuberances are on each side towards 

 the fore part of the upper side, very divergent, and rather directed 

 backwards, the most prominent outer part of each being slightly 

 pointed. The ground-colour of the abdomen is similar to that of 

 the legs, broadly mottled and marked with a greyish yellow-brown 

 hue, chiefly in a transverse direction, just in front of and including 

 the two main protuberances, as well as on the sides, where a bold and. 

 obliquely striped appearance is given ; in the middle of the hollow of 

 the fore extremity (which projects partly over the base of the cepha- 

 lothorax) is a "largish oblong dark reddish-brown patch. The 

 spinners are short, compact, and of a dark reddish-brown hue. 



A single example of this Spider (the first I have seen of the genus 

 from New Zealand) was contained in the collection kindly brought 

 to me by Mr. Atkinson in 1878. 



Thlaosoma hectori, sp. n. (Plate LII. fig. 8.) 



Adult female, length very slightly over 2 lines ; breadth of abdomen 

 at the widest part 3| lines. 



This species may be distinguished from Thlaosoma atkinsonii not 

 onlv by its smaller size, but by the greater proportionate breadth of 

 the" abdomen, which, while bearing a somewhat similar general re- 

 semblance, is much more shruuken and pinched, giving it a still more 

 boldly protuberant appearance. The outer sides of the posterior 

 extremity of the abdomen are also very prominent. The cephalo- 

 thorax and legs are of a dull, somewhat olive-tinged yellowish hue ; 

 the sides of the caput are rather darker, and the legs, which are 

 considerably longer than those of T. atkinsonii, have a very faint 

 appearance of clouding, or ambulation, with dull yellowish brown. 

 The abdomen is of a dull yellowish colour, clouded with dark 

 yellow-brown, and strongly tinged on the fore part with dark rusty 

 brown. 



A single specimen was received in 1879 from Captain F. W. 

 Hutton, by whom it was found at Dunedin, New Zealand. 



