Baker, H. B. (1930). The Mollusca collected by the University of Michigan-Williamson Expedition in Venezuela. VI. Occasional Papers of the Museum of Zoology, University of Michigan. 210: 1-95.
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Baker, H. B.
1930
The Mollusca collected by the University of Michigan-Williamson Expedition in Venezuela. VI.
Occasional Papers of the Museum of Zoology, University of Michigan