@book {575,
	title = {Catalogue of the Mollusca in the collection of the British Museum, 2},
	series = {Pteropoda},
	volume = {4},
	year = {1850},
	pages = {45},
	publisher = {British Museum, E. Newman},
	organization = {British Museum, E. Newman},
	address = {London},
	author = {J.E. Gray}
}
