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TERTIARY FAUNA OF FLORIDA 



Pinna carnea Gmelin. 

 Pinna hand ignobilis Chemn., Conch. Cab., viii., p. 212, pi. 87, fig. 769, 1785. 

 Pinna penmla Chemn., op. cit., viii., pp. 211, 242, pi. 92, fig. 785, 1785 ; Arango, Moll. 



Cuba, p. 264, 1878; Orbigny, Moll. Cuba, ii., p. 325, 1853; not of Reeve. 

 Pinna carnea Gmelin, Syst. Nat., p. 3365, 1792; Solander, Portland Cat., 1796; Des- 



hayes, in Lam. An. s. Vert., ed. ii., vol. vii., p. 61, 1836. 

 Pinna degencra Link, Beschr. Rostock Samml., p. 159, 1807. 

 Pinna flabellum (Lam.), Reeve, Conch. Icon., Pinna., pi. x., fig. 18, 1858. 

 Pinna varicosa Lamarck, An. s. Vert., vi., p. 133, 1819 ; Orbigny, Moll. Cuba, ii., p. 



325. 1853- 

 ? Pinna biitlata (Swains.) Reeve, Conch. Icon., Pinna, pi. i.x., fig. 16, 1858. 



Po.st Pliocene of the Florida Keys ; recent in the West Indies as far 

 south as Trinidad and north to Cape Hatteras, also in the Red Sea. 



As Chemnitz was not systematically binomial in nomenclature, his acci- 

 dentally binomial name cannot be accepted, though the earliest. This 

 species seems to be distinct from P. rudis, though it is often spinose or strongly 

 ribbed ; further study on this point is desirable. The typical P. rudis is not 

 known from Florida, though said to be abundant on the Bahamas. The 

 P. carnea varies from pale salmon color to a brownish white, and may be 

 smooth, or sparsely muricate; it is always thin, straight, and obliquely trun- 

 cate. P. rudis is the only other true Pinna known from the east American 

 subtropical region; the true P. umricata (L.) Rve. is probably an Oriental 

 species, the umricata of American authors belonging to the genus Atrina. 



Pinna rudis (Linne) Dillwyn. 



Pinna rudis L., Syst. Nat., ed. xii.. No. 1159, 1766, ex parte ; Chemn. Conch. Cab., viii., 

 p. 218, pi. 88, fig. 773, 1785 ; Dillwyn, Cat., p. 322, 1817 ; Hanley, Shells of Lin., 

 p. 148, 1855 ; Reeve, Conch. Icon., Pinna, pi. x., fig. 19, 1858 ; Gabb, Journ. Acad. 

 Nat. Sci. Phila., 2d Ser., viii., p. 378, 1881. 



Pinna permila Reeve, Conch. Icon., Pinna, pi. 12, fig. 22, 1858; not of Chemnitz. 



Pliocene of Costa Rica, Gabb ; recent in the West Indies, Bahamas, 

 Bermuda, etc.. Reeve, Jones, et al. 



This species is included on the authority of Gabb; I have seen no Florida 

 specimens unless P. carnea is a degenerate form of it. It is not the P. rudis of 

 authors from the Mediterranean and vicinity ; the latter is a form of P. nobilis. 



Genus ATRINA Gray. 

 The condition of the material is such that only provisional descriptions 



