158 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Spiders and OpUiA 



The abdomen is pale yellow above, with black blotches on the posterior part. 

 Underneath the same are a pair of dark median blotches and transverse darker 

 folds in front of the cribellum. 



The cephalothorax is sliglitly raised at tlie sides, but more or less flat alon<i- the 

 median line. It is as broad as long, rounded at the sides, and narrowed to half its 

 greatest width in front. The eyes are in 3 rows, 4 in the median and 2 pairs in 

 front and behind. 



Taking them as two strongly recurved lines, the posterior 4 are about equal in 

 diameter, and of an orange colour, the median being one and a half times their 

 diameter apart, the laterals their diameter from the same, and 4 diameters apart 

 from one another. 



The median eyes of the front row are smaller than the rear eyes, rather more 

 than their diameter a2jart, yellow with black centres, and their laterals half the 

 diameter of the rear median, and a whole diameter away from same, rather below 

 the line joining their lower edge. 



The mandibles are conical, rather kneed at the base, tapering to the extremities, 

 where the fangs are small and weak. The mnxillae are rounded at the top and outer 

 sides. The Up, much broader than long, and rounded in front, lies across their lower 

 ])art. 



The sternum is a broad ovate, straight in front, the rear coxae not quite 

 contiguous. 



The legs are fine, and tapering to the posterior end. The patella is much shorter 

 than the tibia, 3 claws on the tarsus, rather straight and smootli. There are 5 

 long erect spines, with roots on the tibial and metatarsal joints of all legs — 2 under- 

 neath, 1 or 2 above, and 1 on the side. 



There is no decided calamistrum, but on the inner side of tibia iv are a number 

 of shorti fine downlying spines which may answer the same purpose. 



The abdomen is ovate, straight in front, and pointed at the rear. In front of 

 the spinnerets is a specially long and broad cribellate area without a break, rounded 

 at the sides, and carrying 5 or 6 transverse lines of short brown bristles. The superior 

 spinnerets are wider apart than the inferior, and from underneath can be seen on each 

 side of the latter. 



This genus differs from Aca nth act en us in the lip being short and much broader 

 than long, in having only a few long spines on tibia and metatarsus, and its large 

 single cribellum, which has almost the appearance of a stridulating organ. 



One female, from Campbell Island. 



Of this genus there is only one species previously described (by M. Simon, loc. 

 cit.), from Hobart. 



