Epioblasma arcaeformis


Kingdom Animalia (Animals)

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Phylum Mollusca (Molluscs)
Class Bivalvia (Bivalves)
Order Unionoida (Freshwater Mussels)
Family Unionidae
Genus Epioblasma
Species Epioblasma arcaeformis 
Authority (I. Lea, 1831)
TEW Status Extinct (EX), Year assessed: 2010
IUCN Status Extinct (EX), Year assessed: 2000
English Name Arc-form Pearly Mussel, Sugarspoon
Dutch Name Arkvorm Parelmossel
Synonyms Dysnomia arcaeformis I. Lea, 1831
Range & Habitat The Arc-form Pearly Mussel or Sugarspoon lived in the United States of America. It was found in the states Alabama, Kentucky, and Tennessee. This freshwater species occurred in the Cumberland and Tennessee River systems. The Arc-form Pearly Mussel was found in medium to large rivers in shoal and riffle areas. (Bogan, 2000)
Reproduction It was a winter breeder. (Bogan, 2000)
History & Population The habitat of this species has been severely modified or destroyed by damming. Damming along the entire river systems and also pollution had a negative impact on this species. Annual surveys are conducted throughout the whole system and the species has not been collected for over 50 years and probably went extinct in 1940. (Bogan, 2000)
Extinction Causes Habitat modification and destruction by damming. Pollution also contributed. (Bogan, 2000)
Museum Specimens Unknown. Do you know any museums that have this species in their collection? Contact this website!
Relatives Other extinct Epioblasma: Angled Riffleshell (Epioblasma biemarginata), Arcuate Pearly Mussel (Epioblasma flexuosa), Yellow-blossom Pearly Mussel (Epioblasma florentina florentina), Acorn Pearly Mussel (Epioblasma haysiana), Stone's Pearly Mussel (Epioblasma lenior), Lewis Pearly Mussel (Epioblasma lewisii), Fine-rayed Pearly Mussel (Epioblasma personata), Nearby Pearly Mussel (Epioblasma propingua), Sampson's Pearly Mussel (Epioblasma sampsonii), Steward's Pearly Mussel (Epioblasma Stewardsonii), Green-blossom Pearly Mussel (Epioblasma torulosa gubernaculum), Tubercled-blossom Pearly Mussel (Epioblasma torulosa torulosa), Turgid-blossom Pearly Mussel (Epioblasma turgidula).

Arc-form pearly mussel - Wikipedia, the free encyclopedia

Freshwater Mollusk Conservation Society



(Complete website)

Bogan, A.E. 2000. Epioblasma arcaeformis. In: IUCN 2004. 2004 IUCN Red List of Threatened Species. <www.redlist.org>. Downloaded on 21 September 2005.

Last updated: 17st January 2010.

This page is a part of The Extinction Website. 2000-2010.