Pale lilliput (Toxolasma cylindrellus)
Where Listed: WHEREVER FOUND
The pale lilliput is a small freshwater mussel usually measuring less than 44 mm (1.7 inches) in length with a moderately thin and somewhat compressed shell that is tawny to yellowish green and without rays (Williams et al. 2008). The nacre is often purple to coppery in color (Parmalee and Bogan 1998, Williams et al. 2008). The pale lilliput is elongate and elliptical, becoming somewhat cylindrical in shape (Parmalee and Bogan 1998), with the female having an outline more oval in shape than that of the male.
- States/US Territories in which the Pale lilliput, Wherever found is known to or is believed to occur: Alabama , Tennessee
- US Counties in which the Pale lilliput, Wherever found is known to or is believed to occur: View All
|Status||Date Listed||Lead Region||Where Listed|
|06/14/1976||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|
|04/09/2010||75 FR 18233 18234||5-Year Status Reviews of 10 Southeastern Species; Notice of initiation of reviews; request for information|
|06/14/1976||41 FR 24062 24067||Endangered Status for 159 Taxa of Animals; 41 FR 24062 24067|
|Date||Title||Plan Action Status||Plan Status|
|08/22/1984||Pale Lilliput Pearly Mussel||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|04/09/2010||75 FR 18233 18234||5-Year Status Reviews of 10 Southeastern Species; Notice of initiation of reviews; request for information||
|08/31/2011||Pale Lilliput (Toxolasma cylindrellus) 5-Year Review: Summary and Evaluation|
» Critical Habitat
No critical habitat rules have been published for the Pale lilliput.
» Conservation Plans
No conservation plans have been created for Pale lilliput.
» Life History
It historically occurred in small creeks to large rivers; however, it currently seems to persist in only small to moderate sized streams in areas of slow to moderate current, usually in less than three feet of water, within sand and gravel substrates (Parmalee and Bogan 1998, Williams et al. 2008).
This species is a long-term brooder and is gravid from late summer or autumn into the following summer (Williams et al. 2008). The Alabama Biological Diversity Center has had success transforming juvenile pale lilliputs on blackspotted topminnow (Fundulus olivaceus) (P. Johnson unpublished data).
» 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.