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7 | McIntosh, A. 1939. Description of a plagiorchid trematode, Leptophyllum tamiamiensis, n. sp., from a poisonous snake. Proceedings of the Helminthological Society of Washington 6:92–94. |
8 | Wharton, C. H. 1958. The ecology of the cottonmouth, Agkistrodon piscivorus piscivorus Lacepede, of Sea Horse Key, Florida. Dissertation, University of Florida, Gainesville, Florida, USA. 225pp. |