Mollusca of Great Britain. 369 
tura oblonga, plicis 2 columellaribus conspicuis: pe- 
ristomio subincrassato, postice subreflexo. 
Long. 0.15.— Diam. 0.085. 
Voluta Bede Mont. Tests Brit. bound p. 100. 
TESO 213 931 30 
Auricula hidéntdia:' Fér. Tab. des Moll p. 103. 
From the coasts of Devon; but I have never found it 
alive. It differs from the following in colour and thick- 
ness, in the teeth or folds being more conspicuous, and not 
sunk in the interior of the aperture, and especially in the 
tumidity of the last volution. 
3. Erosa. : 
Animal 
Testa ovato-oblonga, solidior, albida, spirå rugosá, sæpè 
decorticaté. Anfractus 4—5. Apertura oblonga, in- 
tùs juxta peristomium subincrassata, plicis 2 colu- 
mellaribus parüm. obtectis munita: peristomio tenui, 
postice subreflexo. 
Long. 0.165.—Diam. 0.075. 
Not uncommon on the Plymouth coast on the under 
surfaces of stones left bare by the tide. In Mr. Dillwyn's 
cabinet I observed a specimen which had been sent him by 
the late Colonel Montagu under the name of Voluta biden- 
tata. In this the spire is more regularly produced ; and it 
has Hes eroded ee which d is y characteristig of the 
4. Aika oe cis ae, iedh 
Animal 
Testa fusiformis, acuminata, tenuis, pellucida, alba, trans- 
322 |. veiim 
