WORKS REFER EI XG TO UKIOKIDJ:. 155 



Sow. Sowerby.— T/ie Genera of Shells, 1822. Min. Conchology, 1812-1830. Trans. Geol. Soc. Zool. 



Journal, 1825. Conch. Manual, 1839, 2d ed., 1842. 

 Speng. Speugler. — Skrivter of Naturhistorie Selskabet, v. 3, 1792. 



Spin. Spinelli. — Cat. dei Moll, della Bresciana, 1851. Cat. del Moll, in Venezia, 1869. 

 Spitzi. — In Rossmdssler' 's Iconographie. 

 Spix. — Testacea Fluviatilia Braziliensia. 1827. 



Stab. Stabile.— Prospetto Sis. et Stat. Moll, Terr. e. Fl. di Lugano, 1859. 

 Stein. — Schnecken and Muschelen der umgegend Berlins, 1850. 

 Stentz. — Per Eossm. and Drouet. 

 Stimp. Stimpson. — Shells of New England. 1851. 



Strick. Strickland. Fresh Water and Land Shells of Henley on the Thames, in Mag. Nat. BFist.,vo\. v'ri. 

 Stud. Studer. — Schweizer Conchylien. 1820. 

 Swain. Swainson.— Zool. Illust. Exotic Conch., 18-11. Treatise on Malacology, 1840. 



Tap. Tappan. — Am. Joum. of Sci. and Arts, 1839. 



Tate. — On Land and Fr. Water Mollusca of Nicaragua, in Am. Jl. of Conch., vol. v., 1869. 

 Thompson. — Cat. of Irish Shells, 1841. 

 Trask. — Proc. California Acad. Nat. Sci., 1854-1855. 

 Tristram.— Proc. Zool. Soc, 1863 and 1865. 



Troschel. — Wiegmanrfs Archives, 1847. Das Geo. der Schnecken, 1858. 



Turt. Turton. — Concliylia Insularum Britannicarum, 1822, and Manual of Fresh Water and Land 

 Shells of the British Islands, new ed., 1840. 



Valen. Valenciennes. — Continuation of Humboldt'' s Zool. Obs. 1827. 

 Vera. Verneuil. — Mem. Geol. Sur la Crimes. 



Villa. — Catol. del Moll, della Lombaria, 1814. Novarum Specierium, 1841. 

 V. d. Busch. Von dem Busch. — Jl. de Conch. 



Waard. "Waardenberg. — Commentatis Moll. Belgico. 1827. 

 Wag. Wagner. — In Testacea Fluviatilia, by Spix. 1827. 

 Ward. — In Letter. 

 Williams.— Philos. Mag. 1836. 



Wood. — Index Testaceologicus, 181S-1825, and General Conchology. 1815. 

 Wood, S.— Monog. Crag. Moll., 1848. 



Woodw. Woodward. — Recent and Fossil Shells, London, 1851, 1854; 2d ed., 1868. Pro. Zool. Soc, 

 1859. 



Yoldi.- MSS., and March's Cat. of Yoldi's Cab., 1852 and 1853. 



Ziesr. Ziegler.— MSS. 



