@article {586,
	title = {Description of a new Ampullaria from Florida},
	journal = {The Nautilus},
	volume = {12},
	year = {1898},
	pages = {75-76},
	author = {Dall, W. H.}
}
@article {589,
	title = {Two new South American shells},
	journal = {The Nautilus},
	volume = {34},
	year = {1921},
	pages = {132-133},
	author = {Dall, W. H.}
}
@article {588,
	title = {A new form of Ampullaria},
	journal = {The Nautilus},
	volume = {33},
	year = {1919},
	pages = {10-11},
	author = {Dall, W. H.}
}
