Pisidium hibernicum
Pisidium hibernicum is a species of freshwater bivalve from the family Sphaeriidae.
Pisidium hibernicum | |
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External view of valve of Pisidium hibernicum | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Subclass: | Heterodonta |
Order: | Sphaeriida |
Family: | Sphaeriidae |
Genus: | Pisidium |
Species: | P. hibernicum |
Binomial name | |
Pisidium hibernicum Westerlund, 1894[1] | |
Description
The 2.5-3.5mm. shell is very inflated (convex) hence the common name Globular Pea Shell. The central umbos is prominent. The periostracum (surface) is silky glossy and sculptured by fine, regular striae. In colour it is greyish to brownish white often with scattered red-brown mineral deposits.
Distribution
Its native distribution is Palearctic.
- Czech Republic – endangered (EN), endangered in Bohemia (EN), critically endangered in Moravia[2][3]
- Slovakia[4][3]
- Germany – endangered (gefährdet)[5]
- Nordic countries: Denmark, Faroes, Finland, Iceland, Norway and Sweden[6]
- Great Britain and Ireland [7]
gollark: Vaguely relatedly, I would be a bit dubious of a plan to "change the economy and political structure for a better, stronger, richer country that puts citizens first", inasmuch as presumably if there was an easy/comparatively obvious way to do that some countries would likely already try this.
gollark: I don't know. Sure, if you want?
gollark: Learning about electronics might be interesting.
gollark: Hmm. Well. It seems like you've gone through basically everything I might suggest and also a large amount of things I haven't, so no idea then.
gollark: More "potentially interesting things to do" than "challenge" but:- play some fun computer games- learn programming- read books (there are lots of authors providing books for free because of the whole situation, I find lots through reddit, and amazon's kindle unlimited is fairly cheap and has lots)- do... exercise of some sort... if you like that, I guess- learn about some other subject which interests you, there are loads of resources for stuff on the internet these days- drawing/other art stuff might be interesting for you if you're good at that- write things? There's r/writingprompts on reddit for that sort of thing- learning lockpicking is apparently quite cheap, might be fun, and is somewhat useful (and legal as long as you only do it on stuff you own, probably)
References
- Westerlund C. A. (1894). "Specilegium malacologicum. Neue Binnen-Conchylien aus der paläarktischen Region. V." Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft 26 (9/10): 163-177, 190-205. Frankfurt am Main.
- Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm
- (in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
- Šteffek J. (2005). "First record of Pisidium hibernicum (Mollusca, Bivalvia) from Slovakia". Biologia, Bratislava, 60: 136.
- Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
- Kuiper, J. G. J.; Økland, K. A.; Knudsen, J.; Koli, L.; von Proschwitz, T.; Valovirta, I. (1989), "Geographical distribution of the small mussels (Sphaeriidae) in North Europe (Denmark, Faroes, Finland, Iceland, Norway and Sweden)" (PDF), Annales Zoologici Fennici, 26 (2): 73–101
- Roy Anderson ,2005 An annotated list of the non-marine molluscs of Britain and Ireland Journal of Conchology, 38 (6): 607–637, (published 2005) .
External links
- Pisidium hibernicum at Animalbase taxonomy, biology,status (threats), images
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