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Table 23.6--The rare aquatic snails evaluated included 123 species, of which 11 are Federally listed as threatened or endangered (NatureServe 2000a)

Scientific name	Common name	Federal status a	ABI global rank	Primary habitat b	Secondary habitat b	Subclass
Amnicola cora	Foushee Cavesnail		G1	Groundwater	Groundwater	Prosobranchia
Antroselatus spiralis	Shaggy Cavesnail		G2G3	Groundwater	Groundwater	Prosobranchia
Aphaostracon asthenes	Blue Spring Hydrobe		G1	Groundwater	Groundwater	Prosobranchia
Aphaostracon chalarogyrus	Freemouth Hydrobe		G1	Groundwater	Groundwater	Prosobranchia
Aphaostracon monas	Wekiwa Hydrobe		G1	Groundwater	Rivers	Prosobranchia
Aphaostracon pycnus	Dense Hydrobe		G1	Groundwater	Groundwater	Prosobranchia
Aphaostracon theiocrenetus	Clifton Spring Hydrobe		G1	Groundwater	Groundwater	Prosobranchia
Aphaostracon xynoelictus	Fenney Spring Hydrobe		G1	Groundwater	Groundwater	Prosobranchia
Campeloma decampi	Slender Campeloma	LE	G1	Streams	Streams	Prosobranchia
Cincinnatia helicogyra	Crystal Siltsnail		G1	Groundwater	Groundwater	Prosobranchia
Cincinnatia integra	Midland Siltsnail		G3	Rivers	Rivers	Prosobranchia
Cincinnatia mica	Ichetucknee Siltsnail		G1	Groundwater	Groundwater	Prosobranchia
Cincinnatia monroensis	Enterprise Siltsnail		G1	Groundwater	Streams	Prosobranchia
Cincinnatia parva	Pygmy Siltsnail		GX	Groundwater	Groundwater	Prosobranchia
Cincinnatia ponderosa	Ponderous Siltsnail		G1	Groundwater	Groundwater	Prosobranchia
Cincinnatia vanhyningi	Seminole Siltsnail		G1	Groundwater	Groundwater	Prosobranchia
Cincinnatia wekiwae	Wekiwa Siltsnail		G1	Groundwater	Groundwater	Prosobranchia
Clappia cahabensis	Cahaba Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Clappia umbilicata	Umbilicate Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Dasyscias franzi	Shaggy Ghostsnail		G1	Groundwater	Groundwater	Prosobranchia
Elimia acuta	Acute Elimia		G1	Rivers	Rivers	Prosobranchia
Elimia alabamensis	Mud Elimia		G1	Rivers	Streams	Prosobranchia
Elimia ampla	Ample Elimia		G1	Rivers	Rivers	Prosobranchia
Elimia aterina	Coal Elimia		G1	Streams	Streams	Prosobranchia
Elimia bellacrenata	Princess Elimia		G1	Groundwater	Streams	Prosobranchia
Elimia bellula	Walnut Elimia		G1	Rivers	Streams	Prosobranchia
Elimia bentoniensis	Rusty Elimia		G1	Streams	Streams	Prosobranchia
Elimia brevis	Short-Spire Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia cahawbensis	Cahaba Elimia		G3	Streams	Streams	Prosobranchia
Elimia capillaris	Spindle Elimia		G1	Rivers	Rivers	Prosobranchia
Elimia chiltonensis	Prune Elimia		G1	Streams	Streams	Prosobranchia
Elimia clara	Riffle Elimia		G3	Rivers	Rivers	Prosobranchia
Elimia clausa	Closed Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia clenchi	Slackwater Elimia		G1G2	Rivers	Rivers	Prosobranchia
Elimia cochilaris	Cockle Elimia		G1	Groundwater	Streams	Prosobranchia
Elimia crenatella	Lacey Elimia	LT	G1	Rivers	Streams	Prosobranchia
Elimia cylindracea	Cylinder Elimia		G1	Rivers	Rivers	Prosobranchia
Elimia fusiformis	Fusiform Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia gibbera			GH	Rivers	Rivers	Prosobranchia
Elimia hartmaniana	High-Spired Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia haysiana	Silt Elimia		G1	Rivers	Rivers	Prosobranchia
Elimia hydei	Gladiator Elimia		G2	Rivers	Rivers	Prosobranchia
Elimia impressa	Constricted Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia jonesi	Hearty Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia lachryma	Nodulose Coosa River Snail (Al)		GH	Rivers	Rivers	Prosobranchia
Elimia laeta	Ribbed Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia macglameriana	Macglamery's Coosa River Snail (Al)		GH	Rivers	Rivers	Prosobranchia
Elimia pilsbryi	Rough-Lined Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia pupaeformis	Pupa Elimia		GH	Rivers	Rivers	Prosobranchia
Elimia vanuxemiana	Cobble Elimia		GH	Rivers	Rivers	Prosobranchia
Fontigens orolibas	Blue Ridge Springsnail		G2G3	Groundwater	Groundwater	Prosobranchia
Gyrotoma excisa	Excised Slitshell		GX	Rivers	Rivers	Prosobranchia
Gyrotoma lewisii	Striate Slitshell		GX	Rivers	Rivers	Prosobranchia
Gyrotoma pagoda	Pagoda Slitshell		GX	Rivers	Rivers	Prosobranchia
Gyrotoma pumila	Ribbed Slitshell		GX	Rivers	Rivers	Prosobranchia
Gyrotoma pyramidata	Pyramid Slitshell		GX	Rivers	Rivers	Prosobranchia
Gyrotoma walkeri	Round Slitshell		GX	Rivers	Rivers	Prosobranchia
Io fluvialis	Spiny Riversnail		G2	Rivers	Rivers	Prosobranchia
Leptoxis ampla	Round Rocksnail	LT	G1G2	Rivers	Rivers	Prosobranchia
Leptoxis clipeata	Agate Rocksnail		GH	Rivers	Rivers	Prosobranchia
Leptoxis compacta	Oblong Rocksnail		GH	Rivers	Streams	Prosobranchia
Leptoxis crassa	Boulder Snail		GH	Rivers	Rivers	Prosobranchia
Leptoxis crassa anthonyi	Anthony's River Snail	LE	G1T1	Rivers	Rivers	Prosobranchia
Leptoxis formanii	Interrupted Rocksnail		G1	Rivers	Rivers	Prosobranchia
Leptoxis formosa	Maiden Rocksnail		GH	Streams	Streams	Prosobranchia
Leptoxis ligata	Rotund Rocksnail		GH	Rivers	Rivers	Prosobranchia
Leptoxis lirata	Lirate Rocksnail		GH	Rivers	Rivers	Prosobranchia
Leptoxis melanoidus	Black Mudalia		G2	Rivers	Rivers	Prosobranchia
Leptoxis occultata	Bigmouth Rocksnail		GH	Rivers	Rivers	Prosobranchia
Leptoxis picta	Spotted Rocksnail		G1	Rivers	Rivers	Prosobranchia
Leptoxis plicata	Plicate Rocksnail	LE	G1	Streams	Rivers	Prosobranchia
Leptoxis showalterii	Coosa Rocksnail		GH	Rivers	Rivers	Prosobranchia
Leptoxis taeniata	Painted Rocksnail	LT	G1	Rivers	Rivers	Prosobranchia
Leptoxis umbilicata	Umbilicate Rocksnail		G1	Rivers	Rivers	Prosobranchia
Leptoxis virgata	Smooth Mudalia		G2	Rivers	Rivers	Prosobranchia
Leptoxis vittata	Striped Rocksnail		GH	Rivers	Rivers	Prosobranchia
Lepyrium showalteri	Flat Pebblesnail	LE	G1	Rivers	Rivers	Prosobranchia
Lioplax cyclostomaformis	Cylindrical Lioplax	LE	G1	Rivers	Rivers	Prosobranchia
Lithasia duttoniana	Helmet Rocksnail		G2	Rivers	Streams	Prosobranchia
Lithasia jayana	Rugose Rocksnail		G2	Rivers	Rivers	Prosobranchia
Lithasia lima	Warty Rocksnail		G2	Rivers	Rivers	Prosobranchia
Phreatodrobia imitata	Mimic Cavesnail		G1	Groundwater	Groundwater	Prosobranchia
Pleurocera annulifera	Ringed Hornsnail		G1	Rivers	Streams	Prosobranchia
Pleurocera brumbyi	Spiral Hornsnail		G1	Groundwater	Streams	Prosobranchia
Pleurocera corpulenta	Corpulent Hornsnail		G1	Rivers	Rivers	Prosobranchia
Pleurocera curta	Shortspire Hornsnail		G2	Rivers	Rivers	Prosobranchia
Pleurocera postelli	Broken Hornsnail		G2	Streams	Streams	Prosobranchia
Pleurocera pyrenella	Skirted Hornsnail		G2	Rivers	Rivers	Prosobranchia
Pleurocera trochiformis	Sulcate Hornsnail		G2	Rivers	Rivers	Prosobranchia
Pyrgulopsis agarhecta	Ocmulgee Marstonia		G1	Streams	Streams	Prosobranchia
Pyrgulopsis castor	Beaverpond Marstonia		G1	Streams	Streams	Prosobranchia
Pyrgulopsis davisi	Limpia Creek Springsnail		G1	Groundwater	Streams	Prosobranchia
Pyrgulopsis metcalfi	Naegele Springsnail		G1	Groundwater	Groundwater	Prosobranchia
Pyrgulopsis ogmorhaphe	Royal Marstonia	LE	G1	Groundwater	Streams	Prosobranchia
Pyrgulopsis olivacea	Olive Marstonia		GH	Streams	Groundwater	Prosobranchia
Pyrgulopsis ozarkensis	Ozark Pyrg		G1	Rivers	Rivers	Prosobranchia
Pyrgulopsis pachyta	Armored Marstonia	LE	G1	Streams	Streams	Prosobranchia
Pyrgulopsis scalariformis	Moss Pyrg		G1	Rivers	Rivers	Prosobranchia
Somatogyrus amnicoloides	Ouachita Pebblesnail		GX	Rivers	Rivers	Prosobranchia
Somatogyrus biangulatus	Angular Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus crassilabris	Thicklipped Pebblesnail		GX	Rivers	Rivers	Prosobranchia
Somatogyrus currierianus	Tennessee Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus excavatus	Ovate Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus humerosus	Atlas Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus quadratus	Quadrate Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus strengi	Rolling Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus substriatus	Choctaw Pebblesnail		GH	Rivers	Rivers	Prosobranchia
Somatogyrus tenax	Savannah Pebblesnail		G2G3	Rivers	Rivers	Prosobranchia
Somatogyrus tennesseensis	Opaque Pebblesnail		G1	Rivers	Rivers	Prosobranchia
Somatogyrus virginicus	Panhandle Pebblesnail		G1G2	Rivers	Rivers	Prosobranchia
Somatogyrus wheeleri	Channelled Pebblesnail		GX	Rivers	Rivers	Prosobranchia
Stiobia nana	Sculpin Snail		G3	Groundwater	Streams	Prosobranchia
Tryonia adamantina	Diamond Y Spring Snail	C	G1	Groundwater	Streams	Prosobranchia
Tryonia brunei	Brune Spring Snail		G1	Groundwater	Streams	Prosobranchia
Tryonia cheatumi	Phantom Lake Tryonia		G1	Streams	Streams	Prosobranchia
Tulotoma magnifica	Tulotoma	LE	G1	Rivers	Rivers	Prosobranchia
Amphigyra alabamensis	Shoal Sprite		GH	Rivers	Rivers	Pulmonata
Neoplanorbis smithi	Classification Uncertain		GX	Rivers	Rivers	Pulmonata
Neoplanorbis tantillus	Classification Uncertain		GX	Rivers	Rivers	Pulmonata
Neoplanorbis umbilicatus	Classification Uncertain		GX	Rivers	Rivers	Pulmonata
Planorbella magnifica	Magnificent Rams-Horn		G1	Ponds	Ponds	Pulmonata
Rhodacme elatior	Domed Ancylid		G1	Rivers	Rivers	Pulmonata
Stagnicola neopalustris	Piedmont Pondsnail		GX	Ponds	Ponds	Pulmonata

^aFederal status: LE = Listed as endangered; LT = Listed as threatened; PE = Proposed for listing as endangered; PT = Proposed for listing as threatened; C = Candidate for listing.

^bPrimary and secondary habitat do not necessarily imply a constistant order or ranking of importance to the taxonomic group.

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