, PLATE CLVIII. 



FIG. I. II. 

 ARCA NOAE. 



nosh's ^rk shell. 



GENERIC CHARACTER. 



Shell bivalve, valves equal : teeth at the hinge numerous, acute, 

 and inserted between each other. 



SPECIFIC CHARACTER. 



Shell oblong, striated, at the apex emarginated : beaks very remote : 



margin gaping. 



Arca Noae : testa oblonga striata apice emarginata, natibus remo- 

 tissimis, marglne hiante. Lhin. Gviel. Sj/st. 

 Nat. T. I. p. 6. p. 3306. sp. 2. 



Musculus Matthioli. Li'sL t. 368. 



Concha rhomboides^ Rondel. 99. 2. p. 27. 



Bonanu. veer. 2. f. 32. 



Miss Pocock, whose liberal communication of British shells col- 

 lected by herself, we have had such frequent occasion to mention in 

 the progress of this publication, has obliged us with a small specimen 

 of the Arca Noae found on the shores of Cornwall ; the smallest 

 shell figured in the upper part of our Plate. 



