Round rocksnail (Leptoxis ampla)

Federal Register | Recovery | Critical Habitat | Conservation Plans | Petitions | Life History

Listing Status:   

Where Listed: WHEREVER FOUND

General Information

The round rocksnail is a member of the Pleuroceridae family and has a subglobose shell, with an ovately rounded aperture and grows to about 20mm (0.8 inches) in length. The color may be yellow to dark brown or olive, and usually has four solid or broken bands.

  • States/US Territories in which the Round rocksnail, Entire is known to or is believed to occur:  Alabama
  • US Counties in which the Round rocksnail, Entire is known to or is believed to occur:  View All
  • USFWS Refuges in which the Round rocksnail, Entire is known to occur:  Cahaba River National Wildlife Refuge
 
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
10/28/1998 Southeast Region (Region 4) Entire

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
02/28/1996 61 FR 7597 7613 ETWP; Review of Plant and Animal Taxa That Are Candidates for Listing as Endangered or Threatened Species
10/17/1997 62 FR 54020 54028 ETWP; Proposed Rule to List Three Aquatic Snails as Endangered, and Three Aquatic Snails as Threatened in the Mobile River Basin of Alabama
01/18/2005 70 FR 2879 2880 Notice of Availability of a Technical Agency Draft Recovery Plan for Six Mobile Basin Aquatic Snails for Review and Comment
06/14/2005 70 FR 34492 34494 Initiation of 5-Year Reviews of 25 Southeastern Species
11/21/1991 56 FR 58804 58836 ETWP; Animal Candidate Review for Listing as Endangered or Threatened Species; 56 FR 58804 58836
10/28/1998 63 FR 57610 57620 ETWP; Endangered Status for Three Aquatic Snails, and Threatened Status for Three Aquatic Snails in the Mobile River Basin of Alabama
09/19/1997 62 FR 49398 49397 Review of Plant and Animal Taxa
03/25/2014 79 FR 16366 16368 Endangered and Threatened Wildlife and Plants; 5-Year Status Reviews of 33 Southeastern Species
12/02/2005 70 FR 72307 72308 Notice of Availability of a Final Recovery Plan for Six Mobile Basin Aquatic Snails
11/15/1994 59 FR 58982 59028 ETWP; Animal Candidate Review for Listing as Endangered or Threatened Species.

» Recovery

Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
12/02/2005 Final Recovery Plan for Six Mobile Basin Aquatic Snails View Implementation Progress Final
Other Recovery Documents
Date Citation Page Title Document Type
01/18/2005 70 FR 2879 2880 Notice of Availability of a Technical Agency Draft Recovery Plan for Six Mobile Basin Aquatic Snails for Review and Comment
  • Notice Draft Recovery Plan Availability
12/02/2005 70 FR 72307 72308 Notice of Availability of a Final Recovery Plan for Six Mobile Basin Aquatic Snails
  • Notice Final Recovery Plan Availability
06/14/2005 70 FR 34492 34494 Initiation of 5-Year Reviews of 25 Southeastern Species
  • Notice 5-year Review, Initiation
03/25/2014 79 FR 16366 16368 Endangered and Threatened Wildlife and Plants; 5-Year Status Reviews of 33 Southeastern Species
  • Notice 5-year Review, Initiation
Five Year Review
Date Title
07/08/2016 Cylindrical Lioplax (Lioplax cyclostomaformis); Flat Pebblesnail (Lepyrium showalteri); Plicate Rocksnail (Leptoxis plicata); Painted Rocksnail (Leptoxis taeniata); Round Rocksnail (Leptoxis ampla); Lacy Elimia (Elimia crenatella) 5-Year Review: Summary and Evaluation
08/29/2006 Six Mobile River Basin Aquatic Snails 5-Year Reviews

» Critical Habitat

No critical habitat rules have been published for the Round rocksnail.

» Conservation Plans

No conservation plans have been created for Round rocksnail.

» Petitions

» Life History

Habitat Requirements

Round rocksnails are gill breathing snails that are found attached to cobble, gravel, or other hard substrates in the strong currents of riffles and shoals. Since this snail is not very mobile and is not thought to migrate within the stream, it is thought that females live and attach their eggs to the same habitat (Goodrich 1922).

Reproductive Strategy

Similar to the painted rocksnail, round rocksnails will lay their eggs in concentric rings, usually with one or two central eggs, at temperatures between 14-27 degrees C (Whelan et al. 2015).

» 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.