Click on a species or topic to find similar references, or click on BOTH to find references that contain both the species and topic keywords for that row.

Lawson, R. 1985. Molecular studies of Thamnophiine snakes. Dissertation, Louisiana State University, Baton Rouge, Louisiana, USA. 183pp.

Species	Topic	Find
Salt Marsh Snake (Nerodia clarkii ssp.)	Taxonomy	Both
Green Water Snake (Nerodia cyclopion)	Taxonomy	Both
Brown Water Snake (Nerodia taxispilota)	Fossil Record	Both
Midland Water Snake (Nerodia sipedon pleuralis)	Fossil Record	Both
Plainbelly Water Snake (Nerodia erythrogaster ssp.)	Fossil Record	Both
Southern Water Snake (Nerodia fasciata ssp.)	Fossil Record	Both
Green Water Snake (Nerodia cyclopion)	Fossil Record	Both
Salt Marsh Snake (Nerodia clarkii ssp.)	Fossil Record	Both
Salt Marsh Snake (Nerodia clarkii ssp.)	Evolution and Genetics	Both
Southern Water Snake (Nerodia fasciata ssp.)	Evolution and Genetics	Both
Plainbelly Water Snake (Nerodia erythrogaster ssp.)	Evolution and Genetics	Both
Brown Water Snake (Nerodia taxispilota)	Evolution and Genetics	Both
Midland Water Snake (Nerodia sipedon pleuralis)	Evolution and Genetics	Both
Green Water Snake (Nerodia cyclopion)	Evolution and Genetics	Both
Florida Green Water Snake (Nerodia floridana)	Taxonomy	Both
Florida Green Water Snake (Nerodia floridana)	Fossil Record	Both
Florida Green Water Snake (Nerodia floridana)	Evolution and Genetics	Both

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