PLATE II. 



Figure 5. Cerithium marmoratum, Quoy et Gaimard. 



"Cerithiiim, testa turrita, tuberculosa, transversitn striata, apice plicata, albido hiles- 

 cente, fusco vel subrubro marmorata; apertura ovali, albida; canali recurvo." 



Voyage de 1' Astrolabe, Zoologie, tome 3, par. 1, page 109, pi. 54, fig. 4. 



Habitat, New Holland. ? 



Remarks. — When the second edition of this catalogue appeared, I was not 

 aware that this shell had been previously figured. Having however lately re- 

 ceived a copy of the above splendid work, I immediately discovered Cerithium 

 magnum, Nobis, to be the Cerithium marmoratum of Messrs. duoy and Gaim- 

 ard, whose description I have taken the liberty to copy. Of the two specimens 

 in my Cabinet, one is exactly five inches in length. 



Figure 6, 6. Ranella pulchra, Gray. 



Sowb. Conch. Illust. Ranella, fig. 19. 

 Biplex Perca, Perry's Conch, pi. iv. (. 5. 



Habitat, East Indies. ? 



