Triangular Kidneyshell (Ptychobranchus greenii)
Taxonomy:
View taxonomy in ITISListing Status: Endangered
Where Listed: WHEREVER FOUND
General Information
The triangular kidneyshell is oval to elliptical in outline, and can reach 85 mm in length (Williams et al. 2008). The shell is moderately compressed, and may be flattened ventral to the umbos. The posterior ridge is high, rounded and the posterior slope is moderately steep. The pseudocardinal teeth are heavy, and the laterals are heavy, straight to slightely curved and short. The periostracum is tawny to brown, usually without rays, but when present are thin, sparse, and usually confined to the posterior slope (Williams et al. 2008).The species historical range included Alabama, Georgia, Tennessee. See below for information about where the species is known or believed to occur.
» Range Information
Current Range
Current range maps are only shown within the jurisdictional boundaries of the United States of America. The species may also occur outside this region.
Wherever found
Listing status: Endangered
- States/US Territories in which this population is known to or is believed to occur: Alabama, Georgia, Tennessee
- US Counties in which this population is known to or is believed to occur: View All
- USFWS Refuges in which this population is known to occur: Cahaba River National Wildlife Refuge
» Candidate Information
No Candidate information available for this species.
No Candidate Assessments available for this species.
No Candidate Notice of Review Documents currently available for this species.
No Uplisting Documents currently available for this species.
» Federal Register Documents
» Species Status Assessments (SSAs)
No Species Status Assessments (SSA's) are currently available for this species.
No Special Rule Publications currently available for this species.
» Recovery
- Species with Recovery Documents Data Explorer
- Recovery Priority Number: 8
No Delisting Documents currently available for this species.
» Critical Habitat
To learn more about critical habitat please see https://ecos.fws.gov/crithab
» Conservation Plans
No Conservation Plans currently available for this species.
» Petitions
No Petitions currently available for this species.
» Biological Opinions
To see all FWS Issued Biological Opinions please visit the BO Report.
» Life History
Reproductive Strategy
The triangular kidneyshell occurs in shoal habitats in small creeks to large rivers, usually in sand and gravel substrates (Williams et al. 2008). It is a long-term brooder gravid from autumn to the following spring or summer (Hagg and Warren 1997). Glochidia are packaged into conglutinates that mimic small aquatic fly larvae (Hartfield and Hartfield 1996) or fish eggs (Haag and Warren 1997). Suitable fish hosts have been identified as Warrior darter (Etheostoma bellator), Tuskaloosa darter, blackbanded darter and logperch (Haag and Warren 1997).
» 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." +
