Pisidium hibernicum

Pisidium hibernicum is a species of freshwater bivalve from the family Sphaeriidae.

Pisidium hibernicum and P. pulchellum in Danmarks Fauna

Pisidium hibernicum
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

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.

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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

  1. 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.
  2. Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm
  3. (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.
  4. Šteffek J. (2005). "First record of Pisidium hibernicum (Mollusca, Bivalvia) from Slovakia". Biologia, Bratislava, 60: 136.
  5. Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
  6. 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
  7. Roy Anderson ,2005 An annotated list of the non-marine molluscs of Britain and Ireland Journal of Conchology, 38 (6): 607–637, (published 2005) .


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