B. polygonatum.

B. undatum. The common Whelk, or waved Buccinum.

Species oval, slightly ventricose, and sub-carinated on the whorls of the spire; sulcated obliquely; striated transversely and longitudinally; volutions convex; aperture white or yellow; covered with a yellowish epidermis.

B. papillosum. The prickly-lip Buccinum. Pl. [29], fig. 1.

Species with the spire elevated, more or less tuberculated, the edges of the aperture separated posteriorly by a narrow, rather deep sinus; the right dentated anteriorly.

B. reticulatum. The reticulated Buccinum.

Species short, ventricose, sub-globular.

B. achatinum. The Agathine Buccinum.

Species smooth, the spire rather elevated; the aperture wider anteriorly.

10. Eburna. Five species.