ACM^A. 433 



anterior terminations ; at each side of each series is a broad 

 brown tooth, tricuspid at its inner summit ; outside of it 

 is the first lateral, very broad, square, and colourless ; 

 several colourless laterals follow. The jaws are tinged 

 with dusky. 



This Limpet is found all round our coasts, wherever 

 Laminarm grow. It ranges northwards to the Norwegian 

 seas, and southwards to the shores of Gallicia. 



SPURIOUS. 

 P. intorta, Donovan. 



Patella pectinata, Born (not Linnaeus), Test. Mus. Caes. p. 423, pi. 18, f. 7. — 

 Lam. Anim. s. Vert. (ed. Desh.), vol. vii. p. 539. — Blainv. 

 Man. Malac. pi. 49, f. 5. — Desh. Encycl. Method, vol. iii. 

 p. 710.' — Potiez and Michaud, Gal. Douai, Moll. vol. i. 

 pi. 37, f. 11,12. 

 „ intorta, Penn. Brit. Zool. ed. 4, vol. iv. p. 143, pi. 90, f. 148?— 

 Donov. Brit. Shells, vol. v. pi. 146. — Maton and Rack, 

 Trans. Linn. Soc. vol. viii. p. 231. — Mont. Test. Brit. 

 Suppl. p. 154. — Turt. Conch. Diction, p. 136.— Fleming, 

 Brit. Anim. p. 286. — Brit. Marine Conch, p. 130. — Dillw. 

 Recent Shells, vol. ii. p. 1037.— Wood, Index Test. pi. 37, 

 f. 46. — Sowerbv, Genera Shells, Patella, f. 5. — Krauss, 

 Sud-Afrik. Conch, p. 57. 



A South African species (Natal, dx.J; introduced by Donovan — 

 for Pennant's shell is too obscure for identification — as found on 

 the western coast by Mr. Laskey. 



ACMiEA, Eschscholtz. 



Shell ovate, conical, with a subcentral anteal apex ; 

 surface smooth or with radiating striations ; muscular im- 

 pression cresccntic or horse-shoe shaped, interrupted in 

 the region of the head. 



Animal with two subulate tentacles bearing eyes on the 

 outer sides of their swollen bases ; mantle-margins fringed ; 



VOL. II. 3 K 



