PINNA. 329 



Shell about five inches long, and three broad, of a brownish 

 horn colour with dusky rays ; it has several longitudinal ribs, 

 of which a few towards the middle of the shell are armed 

 with vaulted scales, and is transversely wrinkled, especially 

 towards the margin. 



vexillum. 11. Shell sub-triangular-ovate, with the 

 posterior margin dilated ; anterior side longi- 

 tudinally ribbed, and the other transversely 

 wrinkled. 



Pinna Vexillum. Born Mus. p. 134. t. 7. f. 8. Chemnitz, 



viii. p. 238. t. 91. f. 783. Gmelin, p. 3366. 

 Pinna, No. 8. Schroeter Einl. iii. p. 488. 



Inhabits the East Iudian Seas. Chemnitz. 



The shell described by Chemnitz measured five inches in length, 

 and three and a half in breadth, but Born who appears to 

 have met with only an accidentally distorted Variety, de- 

 scribes his to have been three inches and eight lines long, 

 and four inches and two lines broad ; it is convex, thick, of 

 a brown colour, with a few blackish clouds, and destitute of 

 spines. 



squamosa. 12. Shell sub-triangular-ovate, with nu- 

 merous longitudinal ribs covered with small 

 imbricated membranaceous scales, be< oming 

 vaulted towards the margin. 



Pinna squamosa. Gmelin, p. 3365. 



Pinna marina. Chemnitz, viii. p. 239. t. 92. f. 784. 



Pinna muricata. Solander's MSS. 1 ? 



Pinna rotundata, Var. Schroeter Einl. iii. p. 481. 



Lister Conch, t. 374. f. 215. Gualter, t. 78. f. A. Argen- 

 ville, t. 22. f. B. Enc. Method, t. 200. f. 1. 

 Inhabits the Mediterranean. Lister, Chemnitz, §c. 

 Shell about a foot long, and half as broad, of a reddish brown 



or chestnut colour, becoming paler at the base ; the surface 



towards the hinge is smooth, but becomes scaly below, and 



the scales are more elevated as they approach the broader 



end, on the margin of which they are frequently more or 



less tubular. 



rotundata. 13. Shell oblong-spear-shaped, with 

 a few obsolete unarmed longitudinal striae, 

 and transversely wrinkled. 



