BY C. HEDLEY. 735 



Nassa cremata Hinds, Voy. Sulphur Zool., Moll., 1844, p.35, 

 PI. ix., figs.8, 9; Id., Reeve, Conch. Icon., viii., 1853, PI. iv., f.26; 

 Id., Melvill & Standen, Journ. Linn. Soc. Zool., xxvii., 1899, 

 p.l59; Id., Marrat, Proc. Liverpool Phil. Soc, xxxiii., 1879, p. 232. 

 Nassa ravida (ranida) A. Adams, Proc. Zool. Soc, 1851(1852), 

 p.97; Id., Reeve, Conch. Icon., viii., 1853, PI. xi., figs.68, 74; Id., 

 Brazier, Proc Linn. Soc N. S. Wales, i., 1876(1877;, p. 179; Id., 

 Watson, Chall. Rep. Zool., xv., 1886, p.l77. 



Brazier reported this species as N. ravida from 20 fathoms, off 

 Darnley Island, Torres Straits. As N. cremata, Melvill k Standen 

 record the species from Albany Pass. T have dredged it off 

 Mapoon in the Gulf of Carpentaria. In the British Museum are 

 two N. ravida obtained by Prof. J. B. Jukes, in 7 fathoms, mud, 

 in Port Essington, Northern Territory. On this tablet is a note 

 referring the species to the prior N. cremata Hinds. And to a 

 series, probably cotypes of N. cremata Hinds, is another note 

 directing the student to N. conoidalis Deshayes. It is curious 

 how completely this name of Deshayes has disappeared from 

 modern literature. 



Arcularia semigranosa Dunker. 

 (Plate lxxxiii.,fig.78.) 

 Buccinum semigranosum Dunker, Zeitsch. Malak., 1846, p. 170 

 Id., in Philippi, Abbild. Besch., iii., 1849, pp.45, 68, Buccinum 

 PI. i., fig.9, Pl.ii., tig.l2; Id., Schmeltz, Mus. Godeff. Cat., 1874^ 

 p. 124; Id., Marrat, Proc. Liverpool Phil. Soc, xxxiii., 1879, p.232 

 Nassa nigella Pveeve, Conch. Icon., viii., 1854, PI. xxvi., f.l73 

 Nassa optafa Gould, Proc Bost. Soc. Nat. Hist., vii., 1860, p. 331 

 Id , Report New York State Museum, xxvii., 1875, p. 12 ; Id. 

 Ten.-Woods, Proc. Linn. Soc N. S.Wales, ii., 1877(1878), p.257 

 Nassa munieriana Crosse, Journ. de Conch., xii., 1864, p. 345 

 PI. 13, fig.6; Nassa jacksoniana Angas, Proc Zool. Soc, 1867 

 p. 190, and of all Australian writers, but not of Quoy & Gaimard 

 nor of Kiener. 



In cataloguing the moUusca of Port Jackson, Angas treated a 

 common shell as Nassa jacksoniana, and for half a century his 

 guidance has been followed in Australia. The French naturalists 

 did not themselves collect the shell thus described. It was par- 



