Cylindrical lioplax

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Cylindrical lioplax
Lioplax cyclostomaformis shell.jpg
An 1870 drawing of the shell of Lioplax cyclostomaformis
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
informal group Architaenioglossa
Superfamily:
Viviparoidea
Family:
Viviparidae
Subfamily:
Lioplacinae
Genus:
Lioplax
Species:
L. cyclostomaformis
Binomial name
Lioplax cyclostomaformis
I. Lea, 1841

The cylindrical lioplax, scientific name Lioplax cyclostomaformis, is a species of freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae.

Contents

This species is endemic to the United States.

Description

The shell is elongate, reaching about 28 millimeters (mm) (1.1 inches (in)) in length. Shell color is light to dark olivaceous-green externally, and bluish inside of the aperture (shell opening).

The cylindrical lioplax is distinguished from other viviparid (eggs hatch internally and the young are born as juveniles) snails in the Mobile River Basin by the number of whorls, and differences in size, sculpture, microsculpture, and spire angle.

Distribution

This species is endemic to the United States.

No other species of lioplax snails are known to occur in the Mobile River Basin (see Clench and Turner, 1955 [4] for a more detailed description).

Collection records for the cylindrical lioplax exist from the Alabama River (Dallas County, Alabama), Black Warrior River (Jefferson County, Alabama) and tributaries (Prairie Creek, Marengo County, Alabama; Valley Creek, Jefferson County, Alabama); Coosa River (Shelby, Elmore counties, Alabama) and tributaries (Oothcalooga Creek, Bartow County, Georgia; CoahuIla Creek, Whitfield County, Georgia; Annuchee Creek, Floyd County, Georgia; Little Wills Creek, Etowah County, Alabama; Choccolocco Creek, Talladega County, Alabama; Yellowleaf Creek, Shelby County, Alabama); and the Cahaba River (Bibb, Shelby counties, Alabama) and its tributary, Little Cahaba River (Jefferson County, Alabama). [4]

A single collection of this species has also been reported from the Tensas River, Madison Parish, Louisiana; [5] however, there are no previous or subsequent records outside of the Alabama-Coosa system, and searches of the Tensas River in Louisiana by Service biologists (1995) and others [6] (Vidrine, 1996) have found no evidence of the species or its typical habitat.

The cylindrical lioplax is currently known only from approximately 24 kilometers (km) (15 miles (mi)) of the Cahaba River above the Fall Line in Shelby and Bibb counties, Alabama. [7] Survey efforts by Davis [8] failed to locate this snail in the Coosa or Alabama rivers, and more recent survey efforts have also failed to relocate the species at historic localities in the Alabama, Black Warrior, Little Cahaba, and Coosa rivers and their tributaries. [7] [9] [10] [11]

It is listed as endangered in the United States Fish and Wildlife Service list of endangered species since October 28, 1998 (according to report 63FR57619). [2]

Ecology

Little is known of the biology or life history of the cylindrical lioplax.

Habitat

Habitat for the cylindrical lioplax is unusual for the genus, as well as for other genera of viviparid snails. It lives in isolated mud deposits found under large rocks in the rapid flowing sections of stream and river shoals. Other lioplax species are usually found along the margins of rivers in exposed muddy substrates.

Feeding habits

It is believed to brood its young and filter-feed, as do other members of the Viviparidae.

Life cycle

Life spans have been reported from 3 to 11 years in various species of Viviparidae. [12]

Related Research Articles

<span class="mw-page-title-main">Cahaba River</span> River in Alabama, United States

The Cahaba River is the longest substantially free-flowing river in Alabama and is among the most scenic and biologically diverse rivers in the United States. It is a major tributary of the Alabama River and part of the larger Mobile River basin. With headwaters near Birmingham, the Cahaba flows southwest, then at Heiberger turns southeast and joins the Alabama River at the ghost town and former Alabama capital of Cahaba in Dallas County. Entirely within central Alabama, the Cahaba River is 194 miles (312 km) long and drains an area of 1,870 square miles (4,800 km2). The name Cahaba is derived from the Choctaw words oka meaning "water" and aba meaning "above"

<span class="mw-page-title-main">Coosa River</span> River in the United States of America

The Coosa River is a tributary of the Alabama River in the U.S. states of Alabama and Georgia. The river is about 280 miles (450 km) long.

Cahaba may refer to:

<span class="mw-page-title-main">Cahaba River National Wildlife Refuge</span>

The Cahaba River National Wildlife Refuge is a 3,689.63 acres (15 km2) National Wildlife Refuge located in central Alabama, along the Cahaba River downstream from Birmingham, Alabama. The refuge was established on September 25, 2002. Additional purchases were approved that will potentially increase the size of the refuge to 7,300 acres (29.5 km²). Additional negotiations propose an expansion to a potential 280,000 acres (1,100 km2), most of which currently belongs to private landowners. The facility is unstaffed, but is administered by the Mountain Longleaf National Wildlife Refuge in Anniston, Alabama.

<span class="mw-page-title-main">Blue shiner</span> Species of fish

The blue shiner is a species of fish in the carp family. It is native to the southeastern United States, where it is endemic to the Cahaba and Coosa River systems of the Mobile River Basin. This is a federally listed threatened species under the Endangered Species Act of the United States.

<span class="mw-page-title-main">Tumbling Creek cavesnail</span> Species of gastropod

The Tumbling Creek cavesnail is a species of freshwater cave snail with gills and an operculum, an aquatic gastropod mollusk in the family Amnicolidae.

The slender campeloma, scientific name Campeloma decampi, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Viviparidae.

<span class="mw-page-title-main">Cahaba pebblesnail</span> Species of gastropod

The Cahaba pebblesnail, scientific name Clappia cahabensis, is a species of very small freshwater snail, aquatic gastropod mollusks in the family Lithoglyphidae.

The lacy elimia also known as the lacey elimia, scientific name Elimia crenatella, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

<i>Leptoxis ampla</i> Species of gastropod

Leptoxis ampla, common name the round rocksnail, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pleuroceridae.

<i>Leptoxis compacta</i> Species of gastropod

Leptoxis compacta, the oblong rocksnail, is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

Leptoxis foremani, the interrupted rocksnail, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

<span class="mw-page-title-main">Plicate rocksnail</span> Species of gastropod

The plicate rocksnail, scientific name Leptoxis plicata, is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

<span class="mw-page-title-main">Painted rocksnail</span> Species of gastropod

The painted rocksnail is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

<span class="mw-page-title-main">Flat pebblesnail</span> Species of gastropod

The flat pebblesnail is a species of freshwater snail, an aquatic gastropod mollusk in the family Lithoglyphidae.

The rough hornsnail, scientific name Pleurocera foremani, is a rare species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pleuroceridae.

The triangular kidneyshell is a species of freshwater mussel, in the family Unionidae, the river mussels. It is endemic to Alabama in the United States, where it is known from several rivers and streams in the Mobile River Basin. It is a federally listed endangered species of the United States.

<i>Tulotoma</i> Genus of gastropods

Tulotoma magnifica, common name the Alabama live-bearing snail or tulotoma, is an endangered species of large freshwater snail, an aquatic gastropod mollusk in the family Viviparidae.

<span class="mw-page-title-main">Rainbow shiner</span> Species of fish

The rainbow shiner is a North American species of ray-finned fish in the genus Notropis.

The Canoe Creek clubshell, also known as the Canoe Creek pigtoe, is an endangered species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.

References

This article incorporates public domain text (a public domain work of the United States Government) from the reference. [13]

  1. ↑ Bogan, A.E. (1996). "Lioplax cyclostomaformis". IUCN Red List of Threatened Species . 1996: e.T12101A3321753. doi: 10.2305/IUCN.UK.1996.RLTS.T12101A3321753.en . Retrieved 14 November 2021.
  2. 1 2 "Cylindrical lioplax (snail) (Lioplax cyclostomaformis)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 19 April 2023.
  3. ↑ 63 FR 57610
  4. 1 2 Clench, W.J. and R.D. Turner. 1955. The North American genus Lioplax in the Family Viviparidae. Occasional Papers on Mollusks. 2(19):1-20.
  5. ↑ Clench, W.J. 1962. New records of the genus Lioplax. Occasional Papers on Mollusks. 2(27):288.
  6. ↑ Vidrine, M.F. 1996. River survey of freshwater mollusks of Tensas River system in northeastern Louisiana. Report to Natural Heritage Program, Louisiana Department of Wildlife and Fisheries, Baton Rouge, LA. 135 pp.
  7. 1 2 Bogan, A.E. and J.M. Pierson. 1993b. Survey of the aquatic gastropods of the Cahaba River Basin, Alabama: 1992. Alabama Natural Heritage Program. Contract Number 1922.
  8. ↑ Davis, G.M. 1974. Report on the rare and endangered status of a selected number of freshwater Gastropoda from southeastern U.S.A. Report to the U.S. Department of Interior, Fish and Wildlife Service, Washington, D.C. 51 pp. 25 maps.
  9. ↑ Bogan, A.E. and J.M. Pierson. 1993a. Survey of the aquatic gastropods of the Coosa River Basin, Alabama: 1992. Alabama Natural Heritage Program. Contract Number 1923.
  10. ↑ U.S. Fish and Wildlife Service. 1993. Endangered and threatened wildlife and plants; endangered status for three aquatic snails, and threatened status for three aquatic snails in the Mobile River basin of Alabama. Federal Register 63:57610-57620.
  11. ↑ M. Pierson, in litt., 1993, 1994
  12. ↑ Heller, J. 1990. Longevity in molluscs. Malacologia 31(2):259-295.
  13. ↑ U.S. Fish and Wildlife Service. 2005. Recovery Plan for 6 Mobile River Basin Aquatic Snails. U.S. Fish and Wildlife Service, Jackson, Mississippi. 46 pp., page 3-4.
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