228 CONCHYLIA-^DJTHYB^. 50. 



Turton, British Fauna, p. 162. 



Dorset. Catal. p. 38, tab. 11, fig. 3. 



Dillwyn, Descript. Catal, p. 286. 



Turton, Conch. Diet. p. 2. 

 Anomia Tunica Cepse. Da Costa, p. 165, tab. ii. fig. 3. 



Lister, Conch, tab. 204, fig. 38. 

 Mus. nost. On most rocky coasts. 



Shell growing to nearly three inches in diameter, often produced 

 at one side, irregularly wrinkled and plaited ; in the full grown state 

 rough and scaly on the outside, which is dirty white and brownish : 

 beak terminal ; the inside rich perlaceous, mostly white but often 

 mixed with a greenish or dirty brown stain : operculum oval, large, 

 thick, rough. 



Young shells are very irregular and generally angular at the mar- 

 gin, with the undulations putting on the shape of ribs or scaly folds, 

 always preserving a rough surface, and of a yellowish or fine purple 

 color ; and when fixed to bivalves, especially the Pecten, partaking 

 the figure and marks, as in our fig. 1. 



Coiia. Anomia testa obovatd planiusculd, scahrd, intus rosed. 

 Shell oboval flattish rough, rosy red within. 



Tal. nost. 18, fig. 4, young. 

 Anomia Cepa. Linn Syst. Nat. p. 1151. 



Gmelin, Syst. p. 3341. 



Turton, Linn. Syst. iv. p. 281. 



Chemnitz, viii. p. 85, tab. 76, fig. 694, 695. 



Dillwyn, Descript. Catal. p. 287. 

 Mas. nost. Eocks in Torbay. 



