@article {49,
	title = {Illustrations of Unfigured Types of shells in the collection of the United States National Museum.},
	journal = {Proceedings of the United States National Museum},
	volume = {66, Art.17},
	number = {2554},
	year = {1925},
	pages = {1-41, pls.1-36},
	author = {Dall, W.H.}
}
