Ortmann, A.E. 1912. Lampsilis ventricosa (Barnes) in the Upper Potomac drainage. Nautilus 26(5): 51-54. Available electronically.

Ortmann, 1912. Nautilus 26(5): 53.
(intro'd as intra-sp. of Unio ventricosus Barnes, 1823)
Type(s): LECTOTYPE CM_31.6994 (by Parodiz, 1967: 28), Potomac River, Hancock, Washington Co., Maryland.