344 NATICIDiE. 



below in a blunt but projecting base that is placed far to 

 the right. The aperture is very large, rounded oval, being 

 scarcely contracted above, and rather broadly rounded 

 below, and of an uniform not much polished white hue ; it 

 merely fills three-fifths, at most, of the entire length, and 

 about one-half of the transverse diameter : the basal rece- 

 dence is very considerable. The peristome is continuous. 

 The outer lip is acute, disposed to expand, and much but 

 not symmetrically arcuated ; it projects both laterally 

 and anteriorly, but more especially at the latter place. 

 The inner lip, which is moderately curved below, is 

 rendered solid by the thickness of the enamel, yet is rather 

 laterally appressed and bevelled than, strictly speaking, 

 reflected. There is not even an umbilical crevice. 



The specimen, which measures about a quarter of an 

 inch in either direction, was picked np by our friend 

 Professor King, from the refuse of a coble that had been 

 fishing, in the coralline zone, a few miles off Oullercoats, 

 on the coast of Northumberland. 



SPURIOUS. 

 N. iNTRicATA, Donovan. 



Nerita intricahi, DoNov. Brit. Shells, vol. v. pi. 167. — Wood, Index Test. 

 Suppl. pi. 8, Ner. f. 7 (and as Natica inlricata also). 

 „ canroia, DoNov. in Rees's Encyclop. (1817), Conch, pi. 1 1, A. — Turt 

 Conch. Diction, p. 125. — Fleming, Edinb. Encyclop. pi. 203, 

 f. 17. 

 Natica Valeticien?iesii, Payraud. Cat. Moll. Corse, p. 118, pi. 5, f. 23, 24. — 

 Philippi, Moll. Sicil. vol. i. p. 1C2. — Desh. Lam. Anim. 

 s. Vert. (ed. Desh.) vol. viii. p. 649. 

 „ intricala, Fleming, Brit. Anim. p. 319. — Brit. Marine Conch, p. 150. — 

 Brown, Illust. Conch. G. B. p. 25, pi. 13, f. 13, 16.— Phil. 

 Moll. Sicil. vol. ii. p. 140. 



A common Mediterranean species, stipposed hy Donovan, who 

 introduced it into our Fauna, to have been taken at Weymouth. 



