464 Mr. B. I. Pocock on 



Though presenting a strong superficial resemblance, so far 

 as regards the shape of the thorax and abdomen, to the 

 species of the genus Nephila, the structure of the vulva in 

 these species excludes them from the Nephilinse, and points 

 to close relationship with the genus Araneus {Epeira). 



Genus Arqyeoepeira, Emerton. 



14. Argyroepeira grata, Gu^rin. 



This widely distributed Austro-Malayan species has been 



recorded from the Solomon Islands by Keyserling as Meta 



coccinea, Doleschall (see * Die Arachniden Australiens,' 



p. 208, 1887). 



Genus PasilOBUS, Simon. 

 Pasilobus, Simon, Hist. Nat. Araign^es, i. 1894, p. 881. 



15. Pasilobus mammatus, sp. n. (PL XIX. fig. 4.) 



Colour a nearly uniform blackish brown, abdominal tuber- 

 cles paler; legs indistinctly annulate. 



Carapace smooth above, irregularly granular at the sides, 

 compressed on each side behind the head; width of head just 

 about equal to length of tibia of first leg. Abdomen twice aa 

 wide as its median length ; its anterior border mesially emar- 

 ginate, the emargination furnished with six large tubercles, 

 the edge outside the emargination directed obliquely outwards 

 and backwards, and ending in a long tubercle directed for- 

 wards and outwards, near the base of which, but higher up 

 and towards the middle line, are a pair of large tubercles; 

 lateral margins short and parallel, tubercular ; posterior 

 margin widely convex, with four large tubercles in a trans- 

 verse line in the middle ; a pair of large tubercles in the 

 centre of the dorsum ; in addition to the tubercles mentioned, 

 there are others of a smaller size scattered subsym metrically 

 on the dorsal surface. 



Measurements in millimetres. — Total length 9j median 

 length of abdomen 5"5, width of latter 11. 



Loc. Probably Shortland Island (C. M. Woodford). 

 Difi^ers from P. bufoninus, Sim., from the Moluccas, and 

 from the Javan species P. lunatus, Sim., and P. conohumeralisj 

 van Hasselt, in the tuberculation of the margins of the 

 abdomen. 



Genus AcTiNACANTHA, Simon. 

 16. Actinacantha scintillans, Butler. 



Actinacantha scintillans, Butler, Tr. Ent. Soc. 1873, pt. ii. p. 156, 

 pi. iv. fig. 9. 



