442 



9. Cancellaria reticulata (pi. xcii. f. 17.), Lamarck, 

 E. M.f. 375. f. 3. 



C. test A, solidissima, costis undulatis transverse et longitudina- 

 liter decussata ; spira acuminata ; anfractibus rotundatis ; apertura 

 antiee subquadrata. : columella crassa, plicis tribus validissimis, 

 acute prominentibus ; labio externo costis sexdecim crenato : colore 

 fulvo, fusco irregulariter fasciato. 



A thick shell, with the spire rather prominent, reticulated by 

 obtuse ribs crossing each other. The aperture is rather wide at 

 the anterior, the folds of the columella very prominent and sharp, 

 the outer lip is strongly ribbed from within. 



West Indies. 



10. Cancellaria Candida (p. xcii. f. 8.), Sowerhy, Conch. 

 Ulustr. sp. 2. 



C. testa ovali, alba ; costis longitudinalibus, sub-noduliferis, 

 transverse striatis decussata ; spira acuminata, anfractibus subquad- 

 ratis ; columella vix incrassata ; plicis duo, una prorninente : 

 labio externo interne costato. 



Resembling C. reticulata, but white, with the longitudinal ribs 

 sharper and more defined in proportion to the crossing strise. 

 Polynesia. 



11. Cancellaria australis (pi. xcv. f. 72, 73.), Sowerby, 

 Conch. Illustr. sp. 24. 



C. testa alba, ovali, decussata inter costas minute striatis ; spira 

 acuminata, anfractibus rotundatis; apertura interne plicata; 

 columella, plicis tribus obtusis. 



This shell, which is from New South Wales, is more oval and 

 ventricose than C. Candida, with the folds of the columella more 

 obtuse, and the space between the cross ribs minutely striated. 



12. Cancellaria albida (pi. xciv. f. 43.), Hinds, Zoology 

 of Sulphur, p. 42. 



C. testa ovali sub-elongata costis, longitudinalibus, sub-nodu- 

 liferis transverse striatis decussata; spira acuminata, anfractibus 

 subquadratis ; columella vix incrassata ; plicis tribus obliquis ; 

 labio externo interne costato. 



A narrower shell than C. Candida, with the three folds of the 

 columella less prominent and more equal. 



