MolluscaBase note details

Nomenclature
English
eng
Helix contorta Quoy & Gaimard, 1824 is a homonoym of Helix contorta Linnaeus, 1758 and therefore invalid. This makes Solem the author of the name Cookeconcha contorta (not contortus as used by Solem)
Solem, A. (1976). Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Part I, Family Endodontidae. Fieldiana. Zoology. 508 pp. Chicago. available online at https://www.biodiversitylibrary.org/item/20377#page/7/mode/1up 
Date
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2018-07-11 23:22:36Z
created