152 



7. Sph. COntractum, Prime, Cat. Corb. ii, 1863. 



Smith. Inst. Misc. Coll., Prime Monog. Corb. 48, f. 46, 

 1865. Alabama, U. S. of America. 



8 Sph. Cooperiamim, Prime, in litt. California. 



9. Sph. corneum, Scopoli. 



Chama cinerea, d'Argenville, Hist. nat. Lithol. Conch. 2d 

 edit. 326, 321, pi. xxvii, f. 9, 1742. 



Tellina cornea, Linnaeus, Syst. Nat. x, edit, i, 678, 1758. 

 Tellina rivalis, Muller, Verm, ii, 202, 1774. 

 Sphcerium corneum, Scopoli, Introduct. 397, 1777. 

 Cardium nux, Dacosta, Brit. Conch. 173, pi. xiii, f. 2-2, 



1778. 



Nux nigella, Humphrey, Mus. Calonn. 59, 1797. 

 Cardium amnicum, Pultney, Cat. Dorset. 31, 1799. 

 Cyclas cornea, Draparnaud, Tabl. Moll. 195, 1801. 

 Cardium corneum, Montagu, Test. Brit. 86, 1803. 

 Cyclas rivalis, Draparnaud, Hist. Moll. 129, pi. x, f. 4, 5, 



1805. 

 Cornea communis, Megerle, Mag. Gesell. Naturf. Berlin, v, 



56, 1811. 



Cyclas alata, Leach, in litt. in Mus. Brit. 1818-19-20. 

 Cyclas stagnicola, Leach, in litt. in Mus. Brit. 18181920. 

 Cycladites corneus, Kru'ger, Gesch. Urwelt. ii, 469, 1823. 

 Cyclas fossarum, Krynicki, in litt. 183 

 Cyclas nucleus, Studer, Nouv. Mem. Soc. Helv. Sc. Nat. i, 25, 



1837. 



Cyclas tumida, Zeigler, in litt. Feruss. Cat. 20, 1837. 

 Cyclas Leachii, Zeigler, in litt. Villa. Cat. 44, 1841. 

 Cyclas plumbeus, Villa. , loc. sup. cit. 44, 1841. 

 Cyclas citrina, Brown, Illust. Conch. Gr. Brit. etc. 93, pi. 



xxxix, f. 19, 1842. 

 Cyclas flavescens, Macgillivroy, Hist. Moll. An. 208, 246, 



1843. 



Pisidium cornea, Verany, Descriz. Genova, ii, 1846. 

 Cyclas isocardioides, Normand, Dupuy, Hist. Moll. Fr. 668, 



1852. 

 Sph. corneum, Scopoli, Mem. Soc. Sc. phys. et nat. Bord. 1. 



1854. Prime, Cat. Corb. 12, 1863. Europe. 



10. Sph. Creplini, Dunker. 



Cyclas Creplini, Dunker, Zeit. Malak. 20, 1845. 



Pimm Creplini, Deshayes, Brit. Mus. Cat. Conchif. 280, 



1854. 

 Sph. Creplini, Dunker, Normand. Cycl. Dept. Nord. 3, 1854. 



