499 



enus xxiii. 



VOLUTA: 



SHELL UNIVALVE, SPIRAL; APERTURE WITHOUT A 

 BEAK AND SOMEWHAT EFFUSE ; PILLAR PLAITED. 



Subdivisions. if 



* With the aperture entire. 

 ** Sub-cylindrical and emarginate. 

 ### Ovate, effuse, and emarginate. 

 #*## Fusiform. 

 ##### Yentricose, and the summit of the spire pa- 

 pillary. 



* With the Aperture entire. 



auris mid^. 1. Shell oval-oblong, with a wrinkled 

 spire ; aperture ear-shaped, contracted ; pil- 

 lar with two teeth. 



Voluta Auris Midae. Lin. Syst. Nat. p. 1186. Martini, 



ii. p. 121. t. 43. f. 436 to 438. Born Mm. p. 211. 



Schroeter Einl. i. p. 196. Gmelin, p. 3435. Schreibers 



Conch, i. p. 95. 

 Helix Auris Midae. Muller Vermium, ii. p. 110. 

 Bulimus Auris Mida2. Bruguiere Enc. Meth. p. 342. 

 Auricula Midae. Lamarck Syst. des Anim. p. 92. Leach, 



Zool. Misc. i. p. 74. t. 32. 



t The following of Gmelin's species appear to be so very indistinct that I 

 have not thought them deserving of any notice : V.clathrata, p. 3455. V. mu- 

 tronata, p. 3466. V. nitens, p. 3456. V. reticulata, p. 3468. V. Syracusana, p. 3456. 

 and V. tricolor, p. 3456. 



2 K 2 



