3.9 Snails
3.9.1.2 Land Snails Not all land (terrestrial) snails are completely terrestrial. Some move between land and freshwater or saltwater habitats. A majority of land snails have a lung for respiration and are pulmonates, but there are some that live in moist habitats that have a gill and use an operculum to seal the shell. Due to extremely limited data and a scarcity of biologists who work on the taxa, little is known about the 200+ species of native terrestrial gastropods known to exist in the state or the 30+ introduced species of land snails or slugs. Numerous land snails were identi- fed as SGCN and are listed in Table 3.26. Taxa Team evaluation results can be found in Appendix G and some habitat associations for these species can be found in Appendix H.
T ABLE 3.26 Land snail SGCN
Federal/ State Listing*
Family
Scientifc Name
Common Name (Population)
ORDER: Basommatophora Carychiidae
Carychium clappi Carychium exiguum Carychium nannodes
Appalachian Torn
— — —
Obese Torn
File Torn
ORDER: Stylommatophora Helicodiscidae
Helicodiscus bonamicus Helicodiscus fmbriatus Helicodiscus triodus Euchemotrema fasciatum
Spiral Coil Fringed Coil
—/SC —/SC
Talus Coil
— — — —
Polygyridae
Mountain Pillsnail
Fumonelix archeri
Ocoee Covert Roan Covert
Fumonelix cherohalaensis
Fumonelix jonesiana Fumonelix langdoni Fumonelix orestes Fumonelix roanensis Fumonelix wheatleyi
Big-tooth Covert
—/T
Talus Covert
—
Engraved Covert Rock-loving Covert Cinnamon Covert Clingman Covert
—/T
— — — —
Fumonelix wheatleyi clingmanicus
Infectarius downieanus
Dwarf Globelet
Infectarius ferrissi
Smoky Mountain Covert
—/T
Infectarius subpalliatus
Velvet Covert a covert snail
—/SC
Infectarius verus Mesodon altivagus
— — — —
Wandering Globe Balsam Globe Sealed Globelet Dwarf Proud Globe
Mesodon andrewsae Mesodon mitchellianus
Patera clarki clarki
—/SC
Patera clarki nantahala
Noonday Globe
T/T
142
2015 NC Wildlife Action Plan
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