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The Freshwater Gastropods of Georgia

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Georgia Atlantic drainages

Viviparidae

Viviparus intertextus
23.7 mm

Campeloma decisum
24.5 mm

Viviparus georgianus
25.0 mm

Ampullariidae

Pomacea insularum
69.7 mm

Pomacea paludosa
46.8 mm

Pleuroceridae

Goniobasis catenaria catenaria 17.4 mm	Goniobasis catenaria dislocata 17.1 mm	Goniobasis proxima 17.7 mm
	Goniobasis floridensis timidus 16.2 mm

Hydrobiidae

Amnicola limosa 3.8 mm	Lyogyrus granum 2.6 mm	Lyogyrus latus 1.9 mm
Marstonia agarhecta 2.7 mm	Marstonia gaddisorum 3.4 mm	Marstonia halcyon 2.5 mm
Somatogyrus virginicus 3.6 mm	Spilochlamys turgida 4.0 mm	Notogillia sathon 5.5 mm
Floridobia floridana 2.9 mm	Littoridinops tenuipes 3.4 mm	Floridobia sp. A 3.2 mm

Valvatidae

Valvata bicarinata
3.7 mm

Lymnaeidae

Lymnaea cubensis
7.4 mm

Lymnaea columella
10.4 mm

Lymnaea humilis
5.9 mm

Physidae

Physa acuta 8.3 mm	Physa pomilia 6.7 mm	Physa species A 12.0 mm
	Physa gyrina 11.5 mm

Planorbidae

Helisoma trivolvis 13.9 mm	Helisoma anceps 8.4 mm	Biomphalaria obstructa 7.6 mm
Gyraulus parvus 2.9 mm	Menetus dilatatus 2.4 mm	Promenetus exacuous 3.5 mm

Ancylidae

Ferrissia rivularis
4.6 mm

Hebetancylus excentricus

Hebetancylus excentricus
7.2 mm

Laevapex fuscus
5.9 mm

Robert T. Dillon, Jr.
Department of Biology, College of Charleston
Charleston, SC 29424
P: 843.953.8087
F: 843.953.5453