Dall, W. H. (1900). Additions to the insular land-shell faunas of the Pacific coast, especially of the Galápagos and Cocos Islands. Proceedings of the Academy of the Natural Sciences of Philadelphia. 52: 88-106, plate 8.
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Dall, W. H.
1900
Additions to the insular land-shell faunas of the Pacific coast, especially of the Galápagos and Cocos Islands
Proceedings of the Academy of the Natural Sciences of Philadelphia