OF NEW SOUTH WALES. 139 



Abdomen glabrous, twice as broad as long, triangular, the apex 

 being in front furnished with six spikes, of which two — very- 

 strong — form the angles at the base of the triangle ; these are 

 orange colour tipped with black : two other spikes — black — are 

 placed nearly one-third of the distance from the former to the 

 apex of the triangle ; the remaining two, also black, are placed in 

 the base of the triangle, and are each about twice as far from the 

 first- mentioned pair as they are from one another. The remain- 

 ing upper surface of the abdomen is greyish yellow with two 

 broad reddish-black stripes extending along the sides from near 

 the apex of the triangle to the base of the first mentioned spikes ; 

 there are four small round punctured spots on each of these 

 stripes, the centre of each spot being raised ; below these stripes 

 are corresponding yellow stripes. There are two short dark 

 stripes in prolongation of the large spikes, on each of which 

 are two punctured spots similar to those above-mentioned ; down 

 the centre there is a fine dark line with a cross line about one-third 

 of its length from the anterior part forming a cross ; between the 

 anterior parts of the latitudinal stripes are two spots similar to 

 those described above, at the ends of the arms of the cross are two 

 more, and between these and the cross stripes are two more ; below 

 these stripes are four very minute spots placed transversely, the un- 

 derside is reddish-brown covered with small yellow spots. Length 

 and breadth of cephalothorax, 1 line; length of abdomen, 2^ lines ; 

 breadth, exclusive of spikes, 5 lines ; these (the lateral posterior 

 spikes) are 1 line in length, the front pair about half that length. 

 This species is from Hall Sound, New Guinea, where it seems 

 very numerous, there being 31 specimens (females, three imma- 

 ture). There is but little variation, except that the black stripe 

 along the sides of the abdomen varies in width. 



Tholia, L. Koch. 

 This very interesting genus was founded by Dr. L. Koch on 

 specimens in the Museum Goddeffroy, and the Museum in Vienna, 

 and placed by him among the Orbitelari?e. I have myself caught 

 specimens of two different new species of this genus, and in neither 

 case did I find any web. My own experience is that neither Tholia, 



