HELIX. 955 



bably the same species. It is about three-quarters of an 

 inch long, and hardly one-fourth as broad, of a pale horn- 

 colour, with eight or nine rounded whirls, and remarkably 

 obtuse at the summit. 



COLUMNA. 153. Shell turreted, obtuse, with eight 

 reversed whirls, and decussated striae ; aper- 

 ture oblong, and the pillar twisted. 



Helix Columna. Chemnitz, ix. part 1. p. 112. t. 112. f. 



954 and 955, and xi. p. 309. t. 213. f. 3020 and 3021. 



Gmelin, p. 3653. Burrozcs Elements, p. 171. t. 20. 



f.4. 



Helix Pyrum. Gmelin, p. SQ65. 



Bucciuum Columna. Muller Verm. ii. p. 151. Schroeter 



Fluss. p. 29 1 . 

 Bulimus Columna. Bniguiere Enc. Meth. p. 332. 

 Lister Conch, t. 39. f. 37 b. Martini Mannig. iv. t. 2. f. 

 15 and 16. Fuvanne, t. 6l. f. H 13. 

 Junior. Shorter, and the whirls less numerous. 

 Buccinum mucronatum. Gmelin, p. 3504. 

 Bonanni Miis. Kirch. 3. f. 400. Lister Conch, t. 38. 

 f. 37. 

 Inhabits Guinea. Martini. Jamaica. Chemnitz. 

 Shell about two and a half, or sometimes three and a half 

 inches long, and hardly one-fifth as broad, with seven or 

 eight whirls, of which the three lower are remarkably long, 

 and contracted in the middle ; it is white, with the summit 

 brown or slightly spotted, or sometimes variegated through- 

 out with irregular longitudinal chestnut stripes. 



INCUMBENS. 154. Shell turreted, white, with lon- 

 gitudinal elevated striee, and remote tawny 

 stripes ; pillar sinuated and infiected. 



Buccinum striatum. Muller Verm. ii. p. 149. Schroeter 



Fluss. p. 346. 

 Strombus striatus. Gmelin, p. 3524. 



Inhabits 



Shell about two and a half inches long, and one third as broad, 

 thin, pellucid, with seven or eight whirls, which somewhat 

 overlap each other ; it is marked widi very distinct crowded 

 elevated longitudinal striae, and ornamented with tawny li- 

 near streaks ; aperture ovate-oblong. It appears from Mul- 

 ler's description to be nearly allied to //• Columna, and I 

 cannot imagine what could have hiduced Gmelin to place it 

 among the Strombi. 



