Yellow slug

Limax flavus

''Limax flavus'' , known commonly as the yellow slug or tawny garden slug, is a medium to large species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Limacidae.
Golden Slug/ Tawny slug  Geotagged,Limax flavus,United States,Yellow slug

Appearance

This slug has a yellow body with grey mottling, and pale blue tentacles. When extended, the body length can be 7.5 to 10 cm .
Yellow slug/Tawny slug Limax flavus 
Gardeners despise them. However they do enrich the soil and a source of food for many mammals.  Limax flavus

Distribution

The yellow slug is common in Scotland, England, Wales and Ireland as well as most of southern and western Europe. It has been accidentally introduced in many other parts of the world.
⤷  Great Britain
⤷  Ireland
⤷  Ukraine
⤷  China
⤷  and other areas
Underside of Limax flavus  Geotagged,Limax flavus,United States,Yellow slug

Behavior

Yellow slugs, like the majority of other land slugs, use two pairs of tentacles on their heads to sense their environment. The upper pair, called ''optical tentacles'', is used to sense light. The lower pair, ''oral tentacles'', provide the slug's sense of smell. Both pairs can retract and extend themselves to avoid hazards, and, if lost to an accident or predation, can be regrown.

Like all slugs, the yellow slug moves relatively slowly, gliding along using a series of muscular contractions on the underside of its foot, which is lubricated with mucus, such that it leaves a slime trail behind it.
Sluggish Limax flavus  Geotagged,Limax flavus,United States,Yellow slug

Habitat

This species feeds mostly on fungi, decaying matter, and vegetables.This species is strongly associated with human habitation, and is usually found in damp areas such as cellars, kitchens, and gardens. Generally speaking it is only seen at night, because it is nocturnal. Thus often it goes unnoticed and people are unaware of how common the species is.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomAnimalia
DivisionMollusca
ClassGastropoda
OrderStylommatophora
FamilyLimacidae
GenusLimax
SpeciesL. flavus