CZ EN
SEARCH  

Taxon profile

species

Great Grey Slug
Limax maxima Linnaeus, 1758

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Pulmonata - pulmonates »  family Limacidae - keelback slugs »  genus Limax - Slugs

Scientific synonyms

Limax maximus Linnaeus, 1758 (misspelling) m
Limax (Heynemannia) maximus (misspelling) m

Other names

= Giant Garden Slug
= Giant Gardenslug
= Great Slug
= Grey Slug
= Leopard Slug
= Spotted Garden Slug
= Tiger Slug

Least Concern LC  as Limax maximus

Images

Limax maxima - Great Grey Slug

Author: Michal Maňas

Limax maxima - Great Grey Slug

Author: Ondřej Zicha

Limax maxima - Great Grey Slug

Author: Ondřej Zicha

Limax maxima - Great Grey Slug

Author: Michal Maňas

Limax maxima - Great Grey Slug

Author: Milan Fink

Limax maxima - Great Grey Slug

Author: Leoš Ondra

Limax maxima - Great Grey Slug

Author: Petr Kalina

Limax maxima - Great Grey Slug

Author: Petr Kalina

egg

Limax maxima - Great Grey Slug

Author: Milan Fink

Taxon in country check-lists*

* List of countries might not be complete

Description

This large slug is yellowish-gray, generally spotted with black; on the shield the spots are scattered, or concrescent into irregular blotches or marbling; behind the shield the spots are usually arranged in three bands of black spots lengthwise on each side, or one or two bands may be continuous. Rarely it is uniformly pale, without markings, or sometimes suffused with blackish throughout. The neck, sole and foot fringe are pale. Mucus colorless, not very tenacious. The internal shell is oblong, thin, nearly flat, covered with a thin, yellowish epidermis above and projecting at the edges, the lower face white.
Length when extended about 100 mm., or more. Length of shell 10 to 12 mm.
The rectum is without a caecal diverticulum.
The large penis has terminal retractor and vas deferens. Internally the cavity contains throughout its length a broad lamellar fold, the penis wall internally being thin and smooth on one side of the fold, thick and transversely wrinkled on the other. The longitudinal fold is rather abruptly reduced to a low ridge in the contracted anterior neck of the penis. The lower part of the prostate gland is free from the oviduct.
L. maximus is a common slug of city and suburban gardens, cellars, spring-houses, litter in shady places and the like, which afford shelter by day. Its nightly forages, marked by a glistening trail, may often be traced for long distances, and back to its chosen lair. It is not found in woods or anywhere far from habitations.
Pilsbry H A - 1946 - Land Mollusca of North America (north of Mexico) Vol. II Part 2a

Distribution

Distribution: Europe, Asia Minor, Algeria; introduced in North and South America, South Africa, Australia, Hawaii and elsewhere. Type locality: Sweden.
NEWFOUNDLAND: St. Johns and Bay Bulls. CANADA: Ottawa (LaRocque); Toronto. Many localities in the UNITED STATES, in Massachusetts, Rhode Island, New York, New Jersey, Pennsylvania, Maryland, Ohio; Livingston Co., Michigan; Chicago, Illinois; St. Louis, Missouri; New Braunfels, Texas; Boulder, Colorado; Mill Creek near Salt Lake City, Utah (1929); California in the following counties: San Diego, Los Angeles, San Bernardino, Santa Clara, San Francisco and Calaveras; Salem, Oregon.
Pilsbry H A - 1946 - Land Mollusca of North America (north of Mexico) Vol. II Part 2a
Author: Jan Delsing

Links and literature

EN Fauna Europaea 2.4 [429453]

de Jong, Y.S.D.M. (ed.): Fauna Europaea [http://www.faunaeur.org] [as Limax maximus Linnaeus, 1758]
Data retrieved on: 9 March 2012
EN Australian Faunal Directory [f91dd495-844b-4511-9255-93f3c228fb2b]

ABRS (2009-2019): Australian Faunal Directory [https://biodiversity.org.au/afd/home], Australian Biological Resources Study, Canberra [as Limax maximus Linnaeus, 1758]
Data retrieved on: 22 July 2015
EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Limax maximus Grossu & Lupu, 1960]
Data retrieved on: 21 July 2015
CZ Pfleger V. (1999): České názvy živočichů III. Měkkýši (Mollusca), Národní muzeum, (zoologické odd.), Praha, 108 pp. [as Limax maximus LINNÉ, 1758]
Data retrieved on: 11 November 2013
CZ Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010): Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky, Malacologica Bohemoslovaca, Suppl. 1: 1–37. [as Limax maximus Linné, 1758]
EN Dvořák L. (2005): Gastropods in subterranean shelters of the Czech Republic., Malacologica Bohemoslovaca, 4: 10-16 [as Limax maximus Linnaeus, 1758]
EN Irikov A., Eröss Z. (2008): An Updated and Annotated Checklist of Bulgarian Terrestrial Gastropods (Mollusca: Gastropoda), Folia Malacologica, Vol. 16(4) [as Limax maximus Linnaeus, 1758]
Data retrieved on: 22 February 2009

Contributions to BioLib

Help us to expand this encyclopedia! If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon.

Comments


Explanations

m misspelling