EBURNA. MOLLUSCA. 31 



T. granulosa, Lam. Shell conical, narrow, subturreted, longitudi- 

 nally and obliquely striated, girt with minute distant impressed 

 striae, yellowish gray or bluish; whorls convex, with a double row 

 of granules near the sutures ; the last turn smooth, striated at the 

 base. 1^ inch long. Inhabits African seas Lam. vii. 291. 



Gen. 13. EBURNA, Lam. Buccinum, Lin. 

 Shell ovate or elongated ; the outer lip toothless ; aperture lon- 

 gitudinal, emarginate at the base ; columella umbilicate above, 

 canaliculate below the umbilicus. 



This genus, although pretty much resembling the Buccina, is distinguished from 

 them by the singular position of the umbilicus, which is prolonged into a canal on 

 the left side. The Eburna are in general smooth, and are for the most part agree- 

 ably coloured. They inhabit the seas of warm climates. 



E. glabrata, Lam. Shell ovato-elongate, smooth, glossy, pale yel- 

 low, with somewhat convex turns, confluent above ; the sutures 

 obsolete. 3 inches long. Inhabits the seas of South America. 

 Lister, pi. 954, fig. 29. 



E. Zeylanica, Lam. Shell ovate, conical, acute at the apex, smooth, 

 white, with large pale red spots ; the sutures distinct, with an 

 elevated line ; the tip of the spire purple ; the canal of the spire 

 squamoso-tubercular. 2^ inches long. Inhabits the Indian seas. 

 Klein, Ostr. pi. 2, fig. 47- 



E. spirata, Lam. Shell ovate, conical, acute, smooth, white, with 

 pale red spots ; the turns forming an acute angle above, leaving 

 the sutures deeply sunk ; tip of the spire purple ; inner lip reflect- 

 ed as partly to cover the umbilicus. 2^ inches long. Inhabits 

 the Indian 'seas. Lister, pi. 983, fig. 42. C. 



E. areolata, Lam. Shell ovate, acute, conical, smooth, white, with 

 squarish deep red spots, the last turn having three rows ; the 

 turns angular above, and flattened ; the angle obtuse ; tip of the 

 spire white ; canal of the columella open. 2J inches long. In- 

 habits the Indian seas Lister, pi. 981. fig. 41. 



Gen. 14 BUCCINUM, Lam. Lin. 



Shell ovate or ovato- conical ; aperture longitudinal, emarginate 

 at the base ; no canal ; columella not depressed, turgid above. 



The Buccina are marine, littoral shells, most of them very small, although some 

 species attain a considerable size. The animal has two conical tentacula, bearing the 

 eyes at their outer base ; a foot shorter than its shell ; a protruding syphon, and a 

 cartilaginous operculum, attached to the foot. They are found in all seas. The 

 fossil species are found in Britain in the London clay, &c. 



B. undatum, Lin. Shell ovato-conical, ventricose, transversely sul- 

 cate and striated, decussated by minute longitudinal striae, whit- 

 ish or reddish epidermis, obliquely waved with large plicae; whorls 

 convex ; the aperture white. 4 inches long. Inhabits European 

 seas. -Pew. Brit. Zool. iv. pi. 76. 



This is the largest species of the genus. The shell is sometimes sinistral. This 

 species is used as food along the coasts, and is collected in quantities by the fisher- 

 men for sale in the Edinburgh market 



