Lymnaea truncatula var. subangulata Roffiaen 1868
Authors/Creators
- 1. Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Pohjoinen Rautatiekatu 13, 00100 Helsinki, Finland
- 2. Scientific Heritage Service, Partim Recent Invertebrates Collections, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium
- 3. Saint-Petersburg State University, University Embankment 7 / 9, 199034 Saint-Petersburg, Russia
- 4. Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Pohjoinen Rautatiekatu 13, 00100 Helsinki, Finland & Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Framstredt 41 - 42, 9019 Tromsø, Norway
Description
Lymnaea truncatula var. subangulata Roffiaen, 1868
Limnæa truncatula var. subangulata Roffiaen, 1868: 78, pl. 1, fig. 9.
Type material.
Not located.
Type locality.
Switzerland: Altdorf, in a ditch on the plains towards Seedorf. “ […] prés d’Altorf, dans un fossé de la plaine vers Seedorf (M. Colbeau) ” (Roffiaen 1868: 78).
Taxonomic status.
Junior synonym of Galba truncatula (O. F. Müller, 1774) (cf. Hubendick 1951; Vinarski 2024).
Discussion.
No specimens belonging to this taxon were found. The original description mentions a few specimens and describe them as being “ contorted and misshapen ” (“ contourné et difforme ”; Roffiaen 1868: 78) and the accompanying illustrations confirm that description. Likely, these specimens are individuals of Galba truncatula that experienced some problems during growth (e. g., shell breakage and consequent scar and irregular shell growth).
A species that has been named Lymnaea (Galba) subangulata in the Russian literature (Kruglov and Starobogatov 1993; Kruglov 2005; Vinarski and Kantor 2016) differs from Roffiaen’s Limnæa truncatula var. subangulata. The shell of the former is not “ contorted and misshapen ” and represents, possibly, an intraspecific morph of G. truncatula characterized by a rounded shell with small spire and somewhat inflated body whorl.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Roffiaen
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Architaenioglossa
- Family
- Lymnaeidae
- Genus
- Lymnaea
- Species
- subangulata
- Taxon rank
- variety
- Taxonomic concept label
- Lymnaea truncatula var. subangulata Roffiaen, 1868 sec. Salvador, d'Acoz, Vinarski, Samyn & Tomotani, 2025
References
- Roffiaen F (1868) Mollusques terrestres et fluviatiles recueillis en Suisse. Annales de la Societe malacologique de Belgique 3: 65-84.
- Roffiaen F (1868) Mollusques terrestres et fluviatiles recueillis en Suisse. Annales de la Société malacologique de Belgique 3: 65–84.
- Hubendick B (1951) Recent Lymnaeidae. Their variation, morphology, taxonomy, nomenclature and distribution. Kungliga Svenska Vetenskapsakademiens Handlingar, Fjärde Serien 3 (1): 1–223.
- Vinarski MV (2024) Nomenclator of species-group taxa of the Recent Lymnaeidae (Gastropoda: Hygrophila). Ruthenica, Russian Malacological Journal 34 (5): 191–324. https://doi.org/10.35885/ruthenica.2024.34 (5). 1
- Kruglov ND, Starobogatov YI (1993) Guide to Recent molluscs in northern Eurasia. 3. Annotated and illustrated catalogue of species of the family Lymnaeidae (Gastropoda Pulmonata Lymnaeiformes) of Palaearctic and adjacent river drainage areas. Part I. Ruthenica, Russian Malacological Journal 3: 65–92.
- Kruglov ND (2005) Lymnaeid Snails of Europe and Northern Asia. Smolensk State Pedagogical University Press, Smolensk, 508 pp.
- Vinarski MV, Kantor YuI (2016) Analytical catalogue of fresh and brackish water molluscs of Russia and adjacent countries. Severtsov Institute of Ecology and Evolution of Russian Academy of Science, Moscow, 544 pp.