MolluscaBase name details
original description
(of Spiraxis subcallosa L. Pfeiffer, 1855) Pfeiffer, L. (1855). Descriptions of forty-seven new species of Helicea, from the collection of H. Cuming. <em>Proceedings of the Zoological Society of London.</em> 23 (290): 91–101, pl. 31. London [23 July]., available online at https://www.biodiversitylibrary.org/page/30747974 page(s): 99 [details] 
basis of record
Baker, H. B. (1925). The Mollusca collected by the University of Michigan-Williamson Expedition in Venezuela, Part III: Pupillidae to Oleacinidae. <em>Occasional Papers of the Museum of Zoology, University of Michigan.</em> 156: 1-56, pls. 6-11., available online at https://deepblue.lib.umich.edu/bitstream/handle/2027.42/56595/OP156.pdf?sequence=1&isAllowed=y page(s): 47 [details]
|