Planorbarius grandis
| Planorbarius grandis | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Genus: | Planorbarius |
| Species: | P. grandis
|
| Binomial name | |
| Planorbarius grandis (Dunker, 1850)[1]
| |
| Synonyms[2] | |
| |
Planorbarius grandis is a species of freshwater gastropod in the family Planorbidae.
Taxonomy
Planorbarius grandis was originally described as Planorbis grandis by Wilhelm Dunker in 1850.[1] Dunker did not know where the specimens he described came from, so there is no type locality. Some sources do not recognize the legitimacy of this species, instead regarding it as a junior synonym of Planorbarius corneus.[3]
Description
Planorbarius grandis has a large shell with about 4 whorls, or revolutions.The whorls are convex and increase in size rapidly with each successive whorl. The shell opening, called the aperture, is shaped like a kidney.[1]
(Original description in German) The shell is large and uncommonly ventricose (or bulging), it is quite glossy, and it is finely striated (or grooved) with 4 very inflated whorls, which are separated by a deep suture and are much higher than they are wide. The shell is deeply umbilicate at the top with a hidden protoconch, [and it is] concave below, showing the entire spire right into the center.[4]
It is very similar in appearance to Planorbarius corneus, and very few differences between the two have been found.[3]
Distribution and habitat
Planorbarius grandis can be found in Europe, and has been recorded in the basin of the Danube River, as well as around Transylvania, the Black Sea and Baltic Sea.[3][5] Reports of this species extending into Southern Europe and Western Siberia also exist.[3] Its distribution may be similar to that of Planorbis corneus.[4]
References
- ^ a b c Dunker, W. (1850). "Mollusca Gasteropoda. Limnaeacea. Schlammschnecken.". Systematisches Conchylien-Cabinet von Martini und Chemnitz, Ersten Bandes, siebenzehnte Abtheilung. 1 (in German). Vol. 17A. Nürnberg: Bauer & Raspe. p. 35. doi:10.5962/bhl.title.50504. LCCN ca08000209. OCLC 3675655 – via Biodiversity Heritage Library.
- ^ Vinarski, Maxim (2021). "Planorbarius grandis (Dunker, 1850)". WoRMS. World Register of Marine Species. Retrieved 8 November 2025.
- ^ a b c d Vinarski, M. V.; Kantor, Y. I. (2016). Analytical catalogue of fresh and brackish water molluscs of Russia and adjacent countries. Moscow: Severtsov, A. N. Institute of Ecology and Evolution of Russian Academy of Sciences. p. 395. ISBN 978-5-9908840-7-6 – via ResearchGate.
- ^ a b Dunker, W. (1848). "Diagnoses specierum novarum generis Planorbis collectionis Cumingianae". Proceedings of the Zoological Society of London. 16: 40. ISSN 0370-2774. LCCN 86640225. OCLC 1779524 – via Biodiversity Heritage Library. This article incorporates text from this source, which is in the public domain.
- ^ Servain, Georges (1881). Histoire malacologique du Lac Balaton en Hongrie (in French). Paris: Librairie des sciences naturelles. p. 82. doi:10.5962/bhl.title.10458. OCLC 18075083 – via Biodiversity Heritage Library.