b. Heteromyaria. 



28. Familia Pinnidae. 



Genus Pinna Linne. 



T. magna trigona, aequivalvis, liaud auriculata, apice ter- 

 minali, latere postico truncata, bians ; cardo edentulus ; ligamen- 

 tum lineare, elongatum, in fovea positum, animal bysso atfixum. 

 1. Pinna nobilis Linne. T. oblonga, rufo-cornea, 

 albida vel fusca, longitudinaliter crebre sulcata, squamis sub- 

 tubulosis longis tenuibus erectis, demum recurvatis vel 

 depressis numerosissimis exasperata, tenuis, fragilis; margo car- 

 dinalis in adultis elongatus, basi sat rotundatus, concave sinua- 

 tus. - Long. ad 250 Mm. 



Piuna nobilis Linn6 ed. 12 p. UfiO. — Cliemnitz Conch, Cab. T. 89, 



F. 787. — Poli Test. Sicil. II T. 35, F. 1. 2. - Weinkanff 



Mittelm. p. 236. — Monterosato Enum. e Sin. p. 5. — Lam. VII 



p. 63. 



Pinna incurvata Born Mus. Caesar. p. 133. 



Pinna rotundata Schroeter Einl. III p. 479. — Eeeve Conch. icon. 



sp. 3 

 Pinna squamosa Lamarck VII p. 63. — Schroeter Einl. III p. 481. 



— Philippi Enum. I p. 75. 

 Pinna muricata Poli Test. Sicil. II T. 33, F. 1. — Philippi Enum. I 



p. 75. — Keeve Conch. icon. sp. 57. 

 Pinna obeliscus Chemnitz Conch. Cab. VIII T. 79, F. 784. - Mar- 



tens Ann. Mag. 1866 p. 86. 

 Pinna aculeato-squamosa Reeve Conch. ic. sp. 10. — Martens Ann. 



Mag. 1866 p 86. 

 Juv. = Pinna saccata Poli Test. Sicil. II T. 84, F. 3 (negante 



Monterosato). 

 Juv. = Pinna vitrea Gmelin ed. 13 p. 8366 ex parte. — Philippi 

 Enum, I p. 75 



Hab. mare mediterraneum. 



2. Pinna pernula Cbemnitz. T. magna, oblonga, 

 trigona, latere cardinali recto, longissimo, ventrali subsinuato, 

 sensim in posticum oblique rotundatum transiente, rufo-fulva, 

 costis longitudinalibus elevatis in junioribusS, in adultis 10-13 

 sculpta, costis squamis magnis distantibus erectis tubulosis exa- 

 speratis, costa dorsali ad ipsum marginem sita; pars ventralis 

 striis rugisque incrementi aspera. — Long. ad 300 Mm. 



27* 



