Tan riffleshell (Epioblasma florentina walkeri (=e. walkeri))
Where Listed: WHEREVER FOUND
- States/US Territories in which the Tan riffleshell, Wherever found is known to or is believed to occur: Kentucky , Tennessee , Virginia
- US Counties in which the Tan riffleshell, Wherever found is known to or is believed to occur: View All
|Status||Date Listed||Lead Region||Where Listed|
|09/26/1977||Southeast Region (Region 4)||Wherever found|
» Federal Register Documents
|09/26/1975||40 FR 44392 44333||CITES: Proposed Endangered Status for 216 Species on Convention Appendix I; 40 FR 44392 44333|
|08/23/1977||42 FR 42351 42353||Determination of Endangered Status for Tan Riffle Shell; 42 FR 42351 42353 (Epioblasma walkeri)|
|09/21/2007||72 FR 54057 54059||5-Year Review of 16 Southeastern Species|
|Date||Title||Plan Action Status||Plan Status|
|10/22/1984||Tan Riffleshell Mussel||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|09/21/2007||72 FR 54057 54059||5-Year Review of 16 Southeastern Species||
|09/26/2013||Tan Riffleshell (Epioblasma florentina walkeri) 5-Year Review: Summary and Evaluation|
» Critical Habitat
No critical habitat rules have been published for the Tan riffleshell.
» Conservation Plans
No conservation plans have been created for Tan riffleshell.
» Life History
Relatively silt-free substrates of sand, gravel, and cobble in good flows of smaller streams.
Suspension feeder on plankton; deposit feeder on bacteria and organic matter in substrate.
Movement / Home Range
Separate sexes, males releasing sperm to water column, where females uptake while filter-feeding/respiring. A long-term breeder, meaning having a protracted spawning season lasting several months in the warm season. Specialized larvae termed glochidia brooded in females gills; glochidia require host fish for several week parasitic stage on gills. Darters serve as host fishes, which females attract with modified mantle tissues.
» Other Resources
NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.