ARCA. 245 



Shell commonly rather more than four lines long, and five 

 broad ; white, coated with a glossy olivaceous epidermis, 

 and the inside pearly ; it is marked with a few obsolete con- 

 centric wrinkles, and minute longitudinal striae, which are 

 hardly discoverable without the help of a glass. 



rostrata. 43. Shell oblong-, with an attenuated 

 beak on the anterior side, and finely striated 

 transversely ; margin very entire. 



Area rostrata. Martini Besch. Berlin Natitrf. iii. p. 297- 



t. 7. f. 17 and 18. Gmelin, p. 3308. Bruguiere Eric. 



Meth. p. 1 10. Montagu Sum), p. 55. t. 27. f. 7. 

 Area Pernula. Muller Besch. Berlin Naturf. iv. p. 55 J. 

 Area fluviatilis. Schroeter Flussconch. p. 187- t. Q. f. 2. 

 Area Martini rostrata. Chemnitz, vii. p. 206. t. 55. f. 550 



and 551. 

 Area margaritacea. Solander's MSS. Portland Cat. p. 



187. lot 3977. 

 Area, No. 11. Schroeter Einl. iii. p. 283. 

 Favanne, t. 80. f. E. Enc. Meth. t. 309. f- 7. 

 Inhabits the Baltic and the coasts of Norway. Schroeter, 



Scotland. Montagu. 

 Shell about half an inch long, and rather more than twice as 

 broad ; rounded at one end, and the other extended into an 

 attenuated, and somewhat arcuated beak ; it is pellucid, of a 

 pale horn colour, coated with a greenish epidermis, and the 

 inside is highly polished. Both Muller and Chemnitz have 

 found it in the stomach of a fish, belonging to the Genus 

 Pleuronectes. 



minuta. 44. Shell oblong-oval, with a truncated 

 angulated beak at the anterior end, and finely 

 striated transversely; margin Aery entire. 



Area minuta. Muller Zool. Dan. Prodr. p. 247. Fabri- 

 cius Fjia. Groenl, p. 414. Gmelin, p. 3309. Mont. Test. 

 p. 140. Ma ton and Racket, in Lin. Trans, viii. p. 92. 



Area modiolus. Walkers Min. Shells, f. 81. Adams's 

 Micros, p. 643. t. 14. f. 43. 



Area caudata. Donovan British Shells, iii. t. 78. 

 Inhabits the Baltic. Muller. Coasts of Greenland. Fabricius. 



Britain, Boys, #c. 

 Shell about three eighths of an inch long, and half an inch 



broad ; whitish or yellowish, sometimes marked with paler 



transverse bands, and the inside very glossy ; it has similar 



