MolluscaBase name details
original description
Pilsbry, H. A. (1899). Descriptions of new species of Mexican land and freshwater mollusks. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 51(2): 391-402., available online at https://www.biodiversitylibrary.org/page/6389576
page(s): 395 [details]
additional source
Pilsbry, H. A. (1904). Mexican land and freshwater mollusks. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 55: 761-789, pls. 47-54 [1903]., available online at http://biodiversitylibrary.org/page/6601088
page(s): 767-768, pl. 48, figs. 6-6b [details]