Pilsbry, H. A. & Brown, A. P. (1917). Oligocene fossils from the neighborhood of Cartagena, Colombia, with notes on some Haitian species. Proceedings of the Academy of Natural Sciences of Philadelphia. 69: 32–41, pls. 5–6.
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Pilsbry, H. A. & Brown, A. P.
1917
Oligocene fossils from the neighborhood of Cartagena, Colombia, with notes on some Haitian species
Proceedings of the Academy of Natural Sciences of Philadelphia