Pisidium pulchellum
Pisidium pulchellum , the iridescent pea mussel, is a minute species of pea clam, a freshwater bivalve in the family Sphaeriidae.
Pisidium hibernicum and P. pulchellum in Danmarks Fauna
| Pisidium pulchellum | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Subclass: | Heterodonta |
| Order: | Sphaeriida |
| Family: | Sphaeriidae |
| Genus: | Pisidium |
| Species: | P. pulchellum |
| Binomial name | |
| Pisidium pulchellum Jenyns, 1832 | |
Description
The 3.5–4 mm shell is tumid (swollen), oblique-oval shell. The umbos are broad well and well behind the midpoint. The surface (periostracum) is glossy with regular concentric ribbing. The colour is grey to cream tinged and pinkvor orange from the animal inside.
Distribution and conservation status
- Not listed in IUCN red list – not evaluated (NE)[1]
- Germany – critically endangered (vom Aussterben bedroht) [2]
- Nordic countries: Denmark, Finland, Iceland, Norway and Sweden (not in Faroes)[3]
- Great Britain and Ireland [4]
gollark: You probably could do an actual Morse code light, but I think if you can only move things around and heat them instead of actually generating light directly it would be more efficient to do the movable arms thingy.
gollark: Between ships and docks, maybe, for example? That might be useful.
gollark: Also shortish-range communication.
gollark: I mean, if they could be made small and self-powered/low-maintenence, it might be workable.
gollark: Which means accurately made lenses and stuff too, I guess?
References
- 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 30 May 2007.
- 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 pulchellum at Animalbase taxonomy,short description, biology,status (threats), images
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