Image ID: SIL-bca_06_00_00_795
Cite this: Martens, Eduard von. 1890. Biologia Centrali-Americana. no. [9], Land and freshwater Mollusca, [London : Pub. for the editors by R.H. Porter].
Original Caption: Shells and Mollusks
Taxonomic: Sphaerium (3 species) ; Eupera (1 species) ; Pisidium (1 species) ; Spharrium (1 species) ; Unio (1 species) ; Melampus (5 species) ; Littorina (2 species)