Epioblasma arcaeformis (Sugarspoon)

[another specialist]

Common Name/s
ARC-FORM PEARLY MUSSEL (E)
SUGARSPOON (E)

Red List Category & Criteria EX ver 2.3 (1994)
Year Assessed 2000
Assessor/s Bogan, A.E. (Mollusc Specialist Group)
Evaluator/s Seddon. M.B. & Bogan, A.E. (Mollusc Red List Authority)

Justification The habitat of this species has been severely modified or destroyed by damming. Annual surveys are conducted throughout the whole system and the species has not been collected for over 50 years. Damming along entire river systems has had an impact on this species which is now listed as Extinct.

History 1983 - Extinct as Dysnomia arcaeformis? (Wells et al. 1983)
1990 - Extinct? as Dysnomia arcaeformis? (IUCN 1990)
1994 - Extinct? (Groombridge 1994)
1996 - Extinct (Baillie and Groombridge 1996)
1996 - Critically Endangered (Baillie and Groombridge 1996)

Country Names United States [RE] (Alabama [RE]; Kentucky [RE]; Tennessee [RE])

Range and Population Occurred in the Cumberland and Tennessee River systems.

Habitat and Ecology Medium to large rivers in shoal and riffle areas. Winter breeder.

Threats Damming along entire river systems has had an impact on this species, which probably went Extinct in 1940.

www.iucnredlist.org/search/details.php?species=7863

[another specialist]

look here for more info

home.hetnet.nl/~harrie.maas/speciesinfo/arcformpearlymussel.htm

[another specialist]

Rounded Global Status: GX - Presumed Extinct
Reasons: Extirpated along with many other members of the genus. Presumably extirpated due to loss of large river habitat due to conversion of rivers into canals and impoundments.

Global Range Comments: Was distributed in medium to large rivers in the Cumberland and Tennessee river systems (Burch 1975, Gordon and Layzer 1989). Archeological and historical records are known from the following rivers in Kentucky: the Tennessee and lower Cumberland rivers in Livingston, Lyon, and Todd counties; the Big South Fork Cumberland River in Pulaski County (Cicerello 1991).

www.natureserve.org/

[Melanie]

[Melanie]

new link

www.petermaas.nl/extinct/speciesinfo/arcformpearlymussel.htm

Kingdom Animalia



Copyright © The Extinction Website. All rights reserved.

Phylum Mollusca
Class Bivalvia
Order Unionoida
Family Unionidae
English Name Arc-form Pearly Mussel, Sugarspoon
Dutch Name Arkvorm Parelmossel
Authority (I. Lea, 1831)

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).

Links IUCN Red List of Threatened Species – Epioblasma arcaeformis.

Freshwater Mollusk Conservation Society


References

(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.

Jun 21, 2005 15:45:34 GMT another specialist said:

look here for more info

home.hetnet.nl/~harrie.maas/speciesinfo/arcformpearlymussel.htm

[Sebbe]

This species was distributed in medium to large rivers in the Cumberland and Tennessee river systems (Burch, 1975; Gordon and Layzer, 1989). Archaeological and historical records are known from the following rivers in Kentucky: the Tennessee and lower Cumberland rivers in Livingston, Lyon, and Todd counties; and the Big South Fork Cumberland River in Pulaski County (Cicerello, 1991). Parmalee and Bogan (1998) list former Tennessee distribution as the lower reaches of the Clinch, Holston, and French Broad rivers, and in the Tennessee River from Knoxville to northern Alabama. In Alabama, it was known historically from the Tennessee River downstream to Muscle Shoals (Mirarchi, 2004).

This species is considered to be extinct globally and has not been collected alive in over 60 years. It historically occurred in Alabama in the Tennessee River across northern part of the state (Williams et al., 2008).

explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.114692/Epioblasma_arcaeformis

[surroundx]

Bogan, Arthur E. and Parmalee, Paul W. (1983). Tennessee's Rare Wildlife. Volume II: The Mollusks. Tennessee Wildlife Resources Agency.

[surroundx]

Williams, James D., Bogan, Arthur E., Butler, Robert S., Cummings, Kevin S., Garner, Jeffrey T., Harris, John L., Johnson, Nathan A. and Watters, G. Thomas. (2017). A revised list of the freshwater mussels (Mollusca: Bivalvia: Unionida) of the United States and Canada. Freshwater Mollusk Biology and Conservation 20: 33-58.