Spiders from the Solomon Islands. 467 



19. * O aster acantha mollusca, L. Kocb. 



Gasteracantha mollusca, L. Koch, Die Arachuiden Australiens, i. p. 7, 

 pi. i. fig. 4 (1871). 



This species has been recorded by Keyserling from the 

 Solomon Islands, but it does not appear from the reference 

 whether the record applies to the genuine O. mollusca or 

 to the form I have described as G. signifer ; probably to the 

 latter. 



Family Piaauridae. 

 Genus DOLOPOEUS, Thorell. 



20. *Dolopoeus {Thalassius) marginatus (Walck.). 

 Ctenua marghiatm, Walkenaer, Ins. Apt. iv. p. 402 (1847). 

 Recorded from the Solomon or Fiji Islands. 



Genus Dolomedes, Latr. 



21. Dolomedes icadius, L. Koch. 



Dolomedes tcadius, L. Koch, Die Arachuiden Austral, ii. p. 869, pi. Ixxiii. 

 fig. 6. 



A single adult female from New Georgia [H.M.S. 

 * Penguin ') agrees very closely with the description and 

 figures of D. icadius recorded by Koch from several localities 

 in Queensland. 



22. Dolomedes laticeps^ sp. n. (PI. XIX. fig, 7.) 



S . — Colour. Carapace and legs mahogany- brown, carapace 

 with wide lateral border of white hairs, the band extending 

 from the edge over about one fourth of the upper surface, 

 Tipper surface covered with whitish-brown hairs ; a narrow 

 white stripe in the middle line between the eyes; legs 

 covered with a clothing of whitish hairs intermixed with 

 longer bristles ; abdomen whitish, darker above, with two 

 blackish sinuous bands, defined by an external white line, in 

 the anterior half of the upper surface and a sinuous darker 

 stripe on each side behind. 



Carapace nearly circular, only a little longer than wide, in 

 length exceeding that of patella, tibia, and tarsus of palp, 

 about equal to that of third tibia ; eyes practically of rela- 

 tively the same size and disposition as in D. icadius^ the 

 clypeus nearly twice the diameter of the anterior medians. 

 Fang-groove of mandible armed with three teeth behind. 

 Palp short, reaching about as far as apex of first femur, its 



