Limax maximus

(Linnaeus, 1758)

Giant Gardenslug

G5Secure Found in 70 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.119813
Element CodeIMGAS88030
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryInvertebrate Animal
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumMollusca
ClassGastropoda
OrderStylommatophora
FamilyLimacidae
GenusLimax
Other Common Names
La grand limace cendrée (FR)
Concept Reference
Turgeon, D. D., J. F. Quinn, Jr., A. E. Bogan, E. V. Coan, F. G. Hochberg, W. G. Lyons, P. M. Mikkelsen, R. J. Neves, C. F. E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F. G. Thompson, M. Vecchione, and J. D. Williams. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. 2nd Edition. American Fisheries Society Special Publication 26, Bethesda, Maryland. 526 pp.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2009-03-03
Change Date2002-10-08
Edition Date2009-03-03
Edition AuthorsCordeiro, J. (2009)
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
This species is fairly cosmopolitan globally but probably has a European origin in Europe, North Africa, and Asia Minor. It has been introduced widely around the world including Asia Minor, Australia, Canada, Europe, Mexico, New Zealand, the United States (including Hawaii and Alaska), Africa, and South America.
Range Extent Comments
This species is fairly cosmopolitan globally but probably has a European origin in Europe, North Africa, and Asia Minor. It has been introduced widely around the world including Asia Minor, Australia, Canada, Europe, Mexico, New Zealand, the United States (including Hawaii and Alaska), Africa, and South America.
Occurrences Comments
This species was first recorded in Hawaii either in 1931 or 1949 (Cowie, 1997) and has become established on Hawaii. In a recent survey, it was found in the Pua Akala region, southern part of Hakalua Forest National Wildlife Refuge, on the windward slopes of Mauna Kea, elevation 5150-6240 feet, Hawaii, Hawaiian Islands (Howarth et al., 2003). It had been documented historically in Colorado (Cockerell, 1927) but recent (2008) specimens exist in the University of Colorado Museum. In California, it occurs in 13 counties: Alameda, Calaveras, Humboldt, Kern, Los Angeles, Marin, Orange, Sacramento, San Bernardino, San Diego, San Francisco, Santa Barbara (incl. Santa Cruz Island), and Santa Clara (McDonnell et al., 2009). In New York, Hotopp and Pearce (2007) report it from 9 counties in the eastern, southeastern and far western parts of the state as an exotic. Forsyth (2005) documented it in the Upper Fraser Basin of central British Columbia in a single area in Quesnel but it is now widespread in southern British Columbia. Most recently, it was discovered in the Ktunaxa Traditional Territory in southeastern British Columbia (which extends from near Canada - U.S. border north to about 50 km north of Cranbrook) (Ovaska and Sopuck, 2009).
Ecology & Habitat

Habitat

This species is common in gardens and buildings, and margins of native forests, but does not seem to penetrate far into undisturbed forests, although it can be abundant in modified forest remnants and secondary forests (Barker 1999).
Terrestrial Habitats
Forest EdgeGrassland/herbaceousOld fieldCropland/hedgerowSuburban/orchardUrban/edificarian
Other Nations (2)
United StatesNNA
ProvinceRankNative
South DakotaSNANo
MarylandSNANo
Rhode IslandSNANo
VirginiaSNANo
New JerseySNANo
WashingtonSNANo
IdahoSNANo
KentuckySNANo
PennsylvaniaSNANo
North CarolinaSNANo
MichiganSNANo
MaineSNANo
TennesseeSNANo
ColoradoSNANo
MontanaSNANo
MassachusettsSNANo
AlaskaSNANo
WisconsinSNANo
UtahSNANo
OregonSNANo
New YorkSNANo
CaliforniaSNANo
HawaiiSNANo
CanadaNNA
ProvinceRankNative
New BrunswickSNANo
Island of NewfoundlandSNANo
Prince Edward IslandSNANo
Nova ScotiaSNANo
OntarioSNANo
British ColumbiaSNANo
Roadless Areas (70)
Alaska (10)
AreaForestAcres
Chugach-12Chugach National Forest8,116
Chugach-13Chugach National Forest13,337
Copper River WetlandsChugach National Forest85,972
Douglas IslandTongass National Forest28,065
Fidalgo-GravinaChugach National Forest257,968
GravinaTongass National Forest37,381
HyderTongass National Forest121,723
Juneau UrbanTongass National Forest101,581
KartaTongass National Forest52,117
Sheridan GlacierChugach National Forest224,683
Colorado (1)
AreaForestAcres
Long ParkRoutt NF42,100
Idaho (3)
AreaForestAcres
Bighorn - WeitasNez Perce-Clearwater National Forest254,845
HoodooNez Perce-Clearwater National Forest153,868
North Lochsa SlopeNez Perce-Clearwater National Forest117,662
Montana (5)
AreaForestAcres
Bmss Ra 1485Flathead National Forest334,275
Buckhorn Ridge (MT)Kootenai National Forest34,716
Cabinet Face East #671Kootenai National Forest50,326
Patricks Knob - North CutoffLolo National Forest16,970
Willard Estelle #173Kootenai National Forest3,714
North Carolina (2)
AreaForestAcres
Bald MountainPisgah National Forest11,085
Cheoah BaldNantahala National Forest7,795
Oregon (9)
AreaForestAcres
EagleMt. Hood National Forest16,841
HellholeUmatilla National Forest65,679
Imnaha FaceWallowa-Whitman National Forest29,575
Mill Creek Watershed (OR)Umatilla National Forest7,820
Salmon - HuckleberryMt. Hood National Forest17,570
Sheep DivideWallowa-Whitman National Forest16,201
Texas ButteUmatilla National Forest6,871
Walla Walla RiverUmatilla National Forest34,416
WoahinkSiuslaw National Forest5,309
Tennessee (1)
AreaForestAcres
Bald MountainCherokee National Forest11,743
Utah (19)
AreaForestAcres
418016Uinta National Forest35,240
418024Uinta National Forest51,699
418025Uinta National Forest32,698
418026Uinta National Forest14,038
418027Uinta National Forest13,884
418040Uinta National Forest1,702
Burch CreekWasatch-Cache National Forest6,938
Lewis PeakWasatch-Cache National Forest11,616
Lone Peak ContiguousWasatch-Cache National Forest874
Middle FrancisWasatch-Cache National Forest3,296
Mt. AireWasatch-Cache National Forest9,681
Mt. Logan NorthWasatch-Cache National Forest18,930
Mt. NaomiWasatch-Cache National Forest41,922
Mt. OlympusWasatch-Cache National Forest9,982
North FrancisWasatch-Cache National Forest8,148
South FrancisWasatch-Cache National Forest3,374
Twin PeaksWasatch-Cache National Forest6,157
WellsvilleWasatch-Cache National Forest1,717
White PineWasatch-Cache National Forest1,942
Virginia (5)
AreaForestAcres
Bear CreekJefferson National Forest18,274
Beartown Addition BJefferson National Forest2,985
Brush Mountain EastJefferson National Forest4,916
Mountain Lake Addition AJefferson National Forest1,469
New London Bridge BranchJefferson National Forest844
Washington (14)
AreaForestAcres
Abercrombie - HooknoseColville National Forest33,862
Bear CreekGifford Pinchot National Forest7,980
Eagle RockMt Baker-Snoqualmie National Forest34,064
EntiatWenatchee National Forest72,617
Glacier Peak KMt Baker-Snoqualmie National Forest47,269
Grassy TopIdaho Panhandle National Forests13,485
Grassy TopColville National Forest10,302
Jefferson RidgeOlympic National Forest6,512
LightningOlympic National Forest7,179
Mill Creek Watershed (WA)Umatilla National Forest16,747
Mt. Baker MaMt Baker-Snoqualmie National Forest24,847
Mt. Baker Noisy - DiobsudMt Baker-Snoqualmie National Forest56,039
Pasayten RimOkanogan National Forest17,074
South QuinaultOlympic National Forest11,081
West Virginia (1)
AreaForestAcres
Seneca CreekMonongahela National Forest22,287
References (13)
  1. Barker, G.M. 1999. Naturalised terrestrial Stylommatophora (Mollusca: Gastropoda). Fauna of New Zealand, 38: 1-253.
  2. Cockerell, T.D.A. 1927. Zoology of Colorado. Welch-Haffner Printing: Denver, Colorado. 262 pp.
  3. Cowie, R.H. 1997. Catalog and bibliography of the nonindigenous nonmarine snails and slugs of the Hawaiian Islands. Bishop Museum Occasional Papers, 50: 1-66.
  4. Dourson, D.C. 2010. Kentucky's land snails and their ecological communities. Goatslug Publications, Bakersville, NC. 298 pp.
  5. Dourson, D.C. 2013. Land snails of the Great Smoky Mountains National Park and southern Appalachians. Goatslug Publications, Bakersville, NC. 336 pp.
  6. Dourson, D C. and West Virginia DNR. 2015. Land snails of West Virginia. Goatslug Publications, Bakersville, North Carolina. 412 pp.
  7. Forsyth, R.G. 2005a. Terrestrial gastropods of the Upper Fraser Basin of British Columbia. Living Landscapes, Royal British Columbia Museum: Victoria, British Columbia. 26 pp.
  8. Grimm, F.W., R.G. Forsyth, F.W. Schueler, and A. Karstad. 2009. Identifying Land Snails and Slugs in Canada: Introduced Species and Native Genera. Canadian Food Inspection Agency, Ottawa, iv + 1-168.
  9. Hotopp, K. and T.A. Pearce. 2007. Land snails in New York: statewide distribution and talus site faunas. Final Report for contract #NYHER 041129 submitted to New York State Biodiversity Research Institute, New York State Museum, Albany, New York. 91 pp.
  10. Howarth, F.G., D. Preston, F. Moretzsohn, and M. McShane. 2003. Invertebrate survey of Hakalau Forest National Wildlife Refuge, Hawaii. Final Report No. 2003-21 to the Hawaii Biological Survey, Honolulu, Hawaii. 49 pp.
  11. McDonnell, R.J., T.D. Paine, and M.J. Gormally. 2009. Slugs. A guide to the invasive and native fauna of California. University of California Division of Agriculture and Natural Resources, Publication 8336. 21 pp.
  12. Ovaska, K. and L. Sopuck. 2009. Surveys for terrestrial gastropods at risk within Ktunaxa Traditional Territory. Report prepared for British Columbia Ministry of Environment, Victoria, British Columbia. 27 pp.
  13. Turgeon, D. D., J. F. Quinn, Jr., A. E. Bogan, E. V. Coan, F. G. Hochberg, W. G. Lyons, P. M. Mikkelsen, R. J. Neves, C. F. E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F. G. Thompson, M. Vecchione, and J. D. Williams. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. 2nd Edition. American Fisheries Society Special Publication 26, Bethesda, Maryland. 526 pp.