Proceedings of the Academy Natural Sciences of Philadelphia 1862 14:346-359
1951818
10.5962/bhl.part.16874

Catalogues of the reptiles obtained during the Explorations of the Parana, Paraguay, Vermejo and Uruguay Rivers, by Capt. Thos. J. Page, U.S.N.; and of those procured by Lieut. N. Michler, U.S. Top. Eng., Commander of the Expedition conducting the survey of the Atrato River

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