688 



STUDIES ON AUSTRALIAN MOLLUSCA, Xlii., 



free and exposed at low tide, standing on their umbones, and 

 showing their brightly coloured mantle and so-called eyes* as 

 they gape. They were reported by Capt. Cook as " cockles of 

 so enormous a size that one of them was more than two men 

 could eat."t 



Kobelt has noticed that Javan specimens were infested by 

 Pinnotheres, a commensal crustacean. 



Flinders described how the valves of this giant cockle were 

 used as tanks on Half-way Island or Parima, a waterless cay in 

 Torres Strait. To each shell, the rain-water was led from Pan- 

 danus trees by guttei's, long slips of bark, so that a shower would 

 pour two or three pints into each for the use of native canoe- 

 voyagers. 



DosiNiA CROCKA Deshayes. 



Dosinia crocea Deshayes, Brit. Mus. Cat., 1853, p.8 ; Id., 

 Roemer, Monogr., 1862,p.7l,Pl. xiii., fig.4: Id., Tate, Trans. Roy. 

 Soc. S.A., ix., 1887, p.94; Id., Pritchard & Gatliff, Proc. Roy. 

 Soc. Vict., xvi., 1903, p. 133; Id., May, Proc. Roy. Soc. Tasni., 

 1915, p.80. 



This species is now added to the fauna of New South Wales 

 on the strength of specimens I dredged in 7-10 fathoms under 

 Montagu Island. 



Gafrarium quoyi Hanley. 



Cytherea scripta var. quoyi Hanley, Recent Shells, 1844, 

 p. 11 bis, PI. XV., fig. 25. Circe quoyi Sowerby, Thes. Conch., ii., 

 1853, p. 758. Circe lenticularis Deshayes, Cat. Conchif. Brit. 

 Mus., June, 1853, p.85; Id., Proc. Zool. Soc, 1853 (June 27, 

 1854), p.7; Id., Reeve, Conch. Icon., xiv., 1863, PI. ii., fig.7; Id., 

 Roemer, Monog. Venus, 1869, p.200, PI. Iv., fig.l; Id., von 

 Martens, Zool. Forsch. Semon, 1894, p. 94. Circe trigona Reeve, 

 Conch. Icon., xiv., 1863, Pi. iii., fig. 12. Circe riv2i/aris Sowerhy, 

 Thes. Conch., ii., 1853, p.652, PI. 139, figs.46-48; Id., Hanley, 



* Brock, Ann. Mag. Nat. Hist. (6), i., 1888, p. 430. 

 t Cook's First Voyage, iii., 1783, p.o66. 



