538 VOLUTA. 



the ribs give the latter somewhat of a spiuous appearance, 

 especially towards the upper end of the whirls ; the ribs are 

 somewhat oblique, and radiated from the umbilicus ; the 

 aperture is entire, but forms rather an acute angle at the 

 base, and the inside is ribbed. It bears some resemblance 

 to Buccinum Arcularia. 



nucea. 87. Shell ovate, sub-striated, glabrous ; 

 spire sub-elevated ; pillar with five plaits. 



Voluta nucea. Gronovius Zoopln p. 298. t. 18. f. 11. 

 Schroeter Mini. i. p. 301. Gmelin, p. 3449. 



Inhabits 



All other authors have copied from Gronovius, who alone has 

 noticed this species, and the following is his description : 

 " Shell ovate, rather oblong, thick, somewhat more than an 

 inch long, and one third as broad, white all over, glabrous, 

 and obsoletely striated longitudinally ; spire rather promi- 

 nent, short, obtuse, thick, consisting of five whirls tapering 

 upwards, and pressed together at the margins ; pillar with 

 five plaits, grooved and slightly reflected ; outer lip rounded, 

 very entire and thin." 



*X* w ^f '*t ; 



Fusiform. 



tringa. 88. Shell oblong, nearly entire, smooth; 

 spire prominent, decorticated ; pillar three- 

 plaited ; outer lip slightly toothed inwardly. 



Voluta Tringa. Linnceus Syst. Nat. p. 1191. Schroeter 



Einl. i. p. 220. 1. 1. f. 12. Gmelin, p. 3449- 

 Mitra Tringa. Lamarck Jinn, du Mus. xvii. p. 211. 

 Lister Conch, t. 825. f. 45. Gualter, t. 45. f. B. Enc. 

 Meth. t. 374. f. 10. 



Inhabits the Mediterranean. Linnaus. 



Shell hardly three-quarters of an inch long, and but little more 

 than one third as broad, polished, white, clouded with yel- 

 low and pale brownish purple ; the pillar has three obsolete 

 plaits, and the outer lip is slightly toothed, and thickened 

 inwardly towards its middle. 



cornicula. 89. Shell oblong, slightly emarginated, 

 smooth and horn-coloured ; spire rather long ; 

 pillar four-plaited ; outer lip equal and tooth- 

 less. 



