Ortmann, A. E. & Walker, B. (1922). On the nomenclature of certain North American naiades. Occasional Papers of the Museum of Zoology, University of Michigan. 112: 1-75.
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Ortmann, A. E. & Walker, B.
1922
On the nomenclature of certain North American naiades
Occasional Papers of the Museum of Zoology, University of Michigan