@book {251,
	title = {Illustrated Catalogue of the Museum of Comparative Zoology at Harvard College. No. II. North American Acalephae},
	series = {Illustrated Catalogue of the Museum of Comparative Zoology at Harvard College},
	volume = {2},
	year = {1865},
	pages = {1-xiv, 1-234. Staurozoa on pp. 61-64.},
	publisher = {Sever and Francis [University Press]},
	organization = {Sever and Francis [University Press]},
	address = {Cambridge [Mass.]},
	url = {http://openlibrary.org/books/OL23321902M/North_American_Acalephae.},
	author = {Alexander Agassiz}
}
@book {81,
	title = {The Sea-Beach at Ebb-Tide: A Guide to the Study of the Seaweeds and the Lower Animal Life Found Between Tidemarks},
	year = {1916},
	pages = {490 pages},
	publisher = {The Century Co.},
	organization = {The Century Co.},
	edition = {Copyright 1901},
	address = {New York},
	author = {Arnold, Augusta Foote}
}
