MolluscaBase source details
Pilsbry, H. A. & Ferriss, J. H. (1918). New land shells from California and Nevada. The Nautilus. 31(3): 93-95, pl. 7.
350058
Pilsbry, H. A. & Ferriss, J. H.
1918
New land shells from California and Nevada.
The Nautilus
31(3): 93-95, pl. 7
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Epiphragmophora callistoderma Pilsbry & Ferriss, 1918 accepted as Helminthoglypta callistoderma (Pilsbry & Ferriss, 1919) (original description)
Vallonia cyclophorella septuagentaria Pilsbry & Ferriss, 1918 accepted as Vallonia cyclophorella Sterki, 1892 (original description)
Vallonia cyclophorella septuagentaria Pilsbry & Ferriss, 1918 accepted as Vallonia cyclophorella Sterki, 1892 (original description)
