original description
Pilsbry, H. A. (1940). Two new Mexican species of <i>Humboldtiana</i>. <em>The Nautilus.</em> 53(4): 140-141., available online at https://www.biodiversitylibrary.org/page/8516438 [details]
basis of record
Thompson, F. G. (2011). An annotated checklist and bibliography of the land and freshwater snails of México and Central America. <em>Florida Museum of Natural History Bulletin.</em> 50(1): 1-299. [details] Available for editors
additional source
Fullington, R. W. & Zimmerman, E. G. (1977). A new species of <i>Humboldtiana</i> (Helminthoglyptidae) from Coahuila, Mexico. <em>The Veliger.</em> 20(2): 134-136, pl. 1, text-fig. 7., available online at https://www.biodiversitylibrary.org/page/42432342
page(s): pl. 1, figs. 4-6 [details]
From editor or global species database