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Ramshorn Snails - Family Planorbidae

Ramshorn Snails in Alabama
Order Basommatophora

Shoal Sprite Amphigyra alabamensis. Extinct. Endemic to the Alabama portion of the Coosa River. Not reported since the river was impounded. Was restricted to shoal habitats. EXTINCT.

Fragile Ancylid Ferrissia fragilis. Common.

Hood Ancylid Ferrissia mcneili. Threatened.

Creeping Ancylid Ferrissia rivularis. Common.

Ash Gyro Gyraulus parvus. Common. Presumably occurs throughout Alabama. Found in streams and rivers, often on woody debris and submerged clumps of bryophytes and tree roots. Lowest Conservation Concern.

Excentric Ancylid Hebetancylus excentricus. Common.

Two-ridge Ramshorn Helisoma anceps. Common. Presumably found throughout Alabama. Usually occurs in sluggish water. Lowest Conservation Concern.

Dusky Acylid Laevapex fuscus. Common.

Marsh Sprite Micromenetus alabamensis. Unknown.

Disc Sprite Micromenetus brogniartianus. Poorly known. Reported only from Jackson County. Moderate Conservation Concern.

Bugle Sprite Micromenetus dilatatus. Common. Presumably occurs throughout Alabama. Found in streams and rivers, often on woody debris and submerged clumps of bryophytes and tree roots. Lowest Conservation Concern.

Carinate Flat-top Snail Neoplanorbis carinatus. Extinct. Endemic to Coosa River. Not reported since the river was impounded. Was restricted to shoal habitats. EXTINCT.

Angled Flat-top Snail Neoplanorbis smithi. Extinct. Endemic to Coosa River. Not reported since the river was impounded. Was restricted to shoal habitats. EXTINCT.

Little Flat-top Snail Neoplanorbis tantillus. Extinct. Endemic to Coosa River. Not reported since the river was impounded. Was restricted to shoal habitats. EXTINCT.

Umbilicate Flat-top Snail Neoplanorbis umbilicatus. Extinct. Endemic to Coosa River. Not reported since the river was impounded. Was restricted to shoal habitats. EXTINCT.

Marsh Ramshorn Planorbella trivolvis. Common. Apparently restricted to Tennessee River system. Usually found in sluggish water. Lowest Conservation Concern.

Thicklip Ramshorn Planorbula armigera. Poorly known. Presumably found throughout Alabama. Usually found in sluggish water. Moderate Conservation Concern.

Domed Ancylid Rhodacme elatior. Endangered.

Wicker Ancylid Rhodacme filosa. Unkown.

Knobby Ancylid Rhodacme hinkleyi. Unkown.

Note: In Alabama, it is illegal to release or stock or move any fish, mussel, snail or crayfish to any public waters without a permit


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