392 
MOLLUSCA. 
Genus 13.— EBURNA.— Lamarck. 
Generic Character .—Shell ovate or elongated ; the outer lip 
simple; aperture longitudinal; emarginated at the base; colu¬ 
mella umbilicated above, with a canal below the umbilicus. 
Eburna Zeylanica. — The New Zealand Eeurna. 
Plate LXXXIV. fig. 13. 
Smooth, white, with irregular large purplish spots ; apex 
acute, tipped with lilac; sutures with an elevated line. Two 
and a half inches long. Inhabits the South seas. 
Genus 14.—B U C CIN U M.— Linn cc us. 
Generic Character. — Shell ovate, or ovato-conical; aperture 
longitudinal, with the base emarginate; no canal; columella not 
depressed, and turgid above. 
Buccinum undatum.—-Tim Waved Buccinum. 
Plate LXXXIV. fig. 14 
Ovato-conical, ventricose; obliquely sulcated, striated trans¬ 
versely and longitudinally; covered with a yeliow-olivaceous 
epidermis; volutions convex ; aperture white or yellow. Four 
inches long. Inhabits the European seas. 
Genus 15.—DOLIUM.— Lamarck. 
Generic Character. —Shell thin, ventricose, inflated; fre¬ 
quently subglobose, very rarely oblong; transversely ribbed; 
outer lip dentated or crenated; aperture longitudinal, emarginate 
at the base. 
Dolium perdix .— The Partridge Dolium. 
Plate LXXXIV. fig. 15. 
Ovate, oblong, thin, reddish-brown, clouded and spotted with 
white; thickly ribbed and convex. Four inches long. In¬ 
habits the Tropical seas. 
Genus 1G—HARP A.— Lamarck. 
Generic Character. —Shell ovate, more or less turgid; with 
longitudinal, parallel, compressed, inclined ribs; spire short; 
aperture longitudinal, emarginate below; without a canal; 
columella smooth, flattened, and acute at the base. 
