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February 27th; Descriptions of Eighteen New Cretaceous and Tertiary Fossils, &c; Descriptions of One Tertiary and Eight New Cretaceous Fossils from Texas, in the Collection of Major Emory; Description of a New Species of Melania; Synopsis of the Pyrochroides of the United States; Notes on North American Falconidæ, with Descriptions of New Species

T. A. Conrad, John L. Le Conte and John Cassin
Proceedings of the Academy of Natural Sciences of Philadelphia
Vol. 7 (1854 - 1855), pp. 265-284
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Page Count: 20
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Notes and References

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    ASTURINA CINEREA, Vieill. Gal. des Ois.i. pl. 20