Gill T. (1863). Systematic arrangement of the mollusks of the family Viviparidae and others, inhabiting the United States. Proceedings of the Academy of Natural Sciences of Philadelphia. 15(1): 33-40.
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Gill T.
1863
Systematic arrangement of the mollusks of the family Viviparidae and others, inhabiting the United States.
Proceedings of the Academy of Natural Sciences of Philadelphia