NEW ZEALAND SPIDEUS. 313 



is iiiciirved and enlarged at the anterior end, the tibial joint is 

 longer than the patellar, and the female palp-claw has four pecti- 

 nations. 



The abdomen is oval, rounded at the sides. The hairs are 

 smooth and fine. On the upper side are three pairs of muscle- 

 spots. The epigyne is horseshoe-shaped, hollow in the anterior 

 half onlj, and without any longitudinal rib. The superior pair 

 of spinnerets is longer than the infei-ior. They are both two- 

 jointed, the second joint half the length of the first. 



The egg-sac is globular, white, and flocculent, 12 millimetres 

 in diameter. 



The measurements (in millimetres) are as follows : — 



One female from Dunedin. Collected by Mr, G. M. Thomson. 



This species differs from the accepted limits of the genus 

 Dolomedes as detailed by M. Simon in having three teeth only 

 on the inner margin of the falx-sheath instead of four. The 

 clypeus while broad is less broad than the area of the median eyes, 

 and the patellee of legs 1 and 2 are without spines. It is, however, 

 much nearer to Dolomedes Latreille than to Thaumasia Perty, 

 Drances Simon, or any other genus. I would have felt it right 

 to propose a new genus for it on the above difi'erences but for the 

 fact that it graduates so imperceptibly into other members having 

 four teeth, notably D. huttoni and D. trippi from the Chatham 

 Islands, which are certainly Dolomedes. Its eyes and clypeus, the 

 equality of the 1st and 2nd pairs of legs, and the marking of 

 the cephalothorax in the female correspond almost exactly with 

 those of D. trippi. Its epigyne is of the same type as that of 

 D. huttoni. 



