96 List of the Known Species of 



5. arcuatum Pr. Bost. Jl. VI. 364, pi. XII. f. 14-16, 1852. 

 ITab. N. Amer. (fossil). 



— australe Phil. Moll. Sicil. 1, 39, 1816, is P. casertanum Bgt. 



— Baudonianum Ces. Pisid. Cr. 4, 1855, is P. Gassiesianum Dup. 



— Bonafouxianum Ces. loc. sup. cit. 6, 1855, is P. Henslowiaiium Jen. 



— Brongniartinum Bgt. Sph. 51, 1854, is P. cuneatum Petit. 



— caliculatum Dup. extram. Gall. test. No. 229, 1849, is P. casertanum 



Bgt. 



6. Caiiariense Shutl. Diag. n. Moll. 12, 1852. 

 Hab. Canary Islds. 



7. cardiollim Oesh. Inv. Par. 525,pl.XXXIV.f. 26-29, 1857. 

 Hah. France (fossil). 



8. casertanum B^t. Cat. Saulcy. 80, 1853. 



Cardiutri casertanum Poli I. 65, pi. XVI. f. 1, 1791. 



" amnicum (Jr.) Mont. 88, 1803. 



Cyclas vitrea Risso IV. 338, 1826. 

 Pera pulchella Leach MSS. Brit. Mus. 1830. 



Pisid. pulchellum Jen. Trans. Camb. Phil. Soc. IV. 2 pt. 306, pi. 

 XXI. f. 1-5, 1832. 

 " australe Phil. Moll. Sicil. 1, 39, 1836. 

 " cinereum Aid. Siipplein. Cat. 4, 1837. 

 " Lumsternianum Forb. Ann. n. h. 225, pi. XII. f. 4, 1839. 

 Cyclas pulchella Hani. Rec. Spec. 1, 91, 1843. 

 " cinerea Hani, loc. sup. cit. 1, 91, 1843. 

 " lenticularis Norm. Cycl. 8, f. 7-8, 1844. 

 Pisid. Joannis McGil. Scot. 248, 1844. 

 " Jenynsi McGil. loc. sup. cit. 249, 1844. 

 " vitreum Pf. Verany Cat. 13, 1846. 

 ^ " nitidum Jen. Gas. Agen. 209, 1849. 



" limosum Gas. loc. sup. cit. 206, pi. 2, f. 10-11, 1849. 



" iratianum Dup. Gall, extram. test. 234, 1849. 



" thermale Dup. loc. sup. cit. 238, 1849. 



*' caliculatum Dup. loc. sup. cit. 229, 1849. 



" sinuatum Bgt. Jl. Conch. 421, 1851.— 49, pi. I. f. 6-10, 1852. 



" lenticulare Dup. Moll. Fr. 680, pi. 30, f. 2, 1852. 



" rotundum Ces. Pisid. Cr. 6, 1855. 



