172 CO^CHYLIA—DITHYRA. 39. 



piiosus. Pectcnculcs testa orbiculari convexd fpquilaterali, inacnlis 

 longitudinalibus. 

 Shell orbicular convex equilateral, with the colored marks dis- 

 posed longitudinally. 



Tab.nost. 12, fig. 2. 

 Area pilosa. Linn. Syst. Nat. p. 1143. 



Gmelin, Syst. p. 3314. 



Turton, Linn. Syst, ir. p. 256, 



Pennant, p. 217, fab. 61, fig. 1. 



Montagu, p. 136, and Suppl. p. 53. 



Linn. T'rans. viii. p. 94, tab. 3, fig. 4. 



Turton, British Fauna, p. 160. 



Dorset Catal. p. 36, tab. 11, fig. 2. 



Dillwyn, Descript, Catal. p. 242. 



Turton, Conch. Diet, p, 6. 



Chemnitz, vii. p, 231, tab. 57, fig. 565, 566. 

 Area minima. Turton, Conch, Diet. p. 8. Young. 



Area Glycymeris. Donovan, British Shells, ii. tab. ,37. 

 Glycymeris orbicularis. Da Costa, p. 168, tab. 11, fig. 2. 

 Pectunculus ingens. Lister, Conch, tab. 247, fig. 82. 

 Mus. nost. Western coasts, and British Channel. 



Shell from one to three inches in diameter, thick, strong and 

 convex, quite round and exactly equilateral, white or rufous, 

 with zigzag red or purplish streaks disposed longitudinally, 

 more or less clothed with a thick dark brown silky skin. 

 • Through the kindness of Dr. Goodall we have conviction, tliat 

 the Area rainuta of our Conchological Dictionary is the very fry 



