Where’s Wildlife · Snail & Slug Field Guide

Carolina Mantleslug

Philomycus carolinianus

Pronounced (approx.): fil-oh-MY-kus kair-oh-lin-ee-AY-nus

A mottled woodland slug whose mantle extends from just behind the head to the tail.

Carolina Mantleslug. Select the photo to browse the gallery. Photographs © Where’s Wildlife.

NATIVE TO NORTH AMERICA

At a Glance

Family
Philomycidae · mantleslugs
Adult size
About 5–10 cm when extended
Habitat
Moist deciduous woods, floodplains and decaying logs
Food
Fungi and lichens
Field note
Mantle covers the whole back

Slug lengths refer to extended animals; snail measurements refer to the shell.

Three Identification Clues

01

Mantle covers the entire back

02

Gray or tan surface with darker mottling

03

Often two lengthwise rows of dark spots

Field Photographs

Compare views, markings and body shapes in the photographs below.

Identification & Look-alikes

What to Look For

Compare the complete mantle with the shorter saddle of many garden slugs. Examine the whole back and both sides; color varies.

A Closer Look

Other mantleslugs can look very similar. The existing Carolina Mantleslug label is retained here, but these photos alone do not independently confirm the species. The quiz uses the broader answer Mantleslug.

Habitat & Life History

Food & Habitat

Moist deciduous woods, floodplains and decaying logs. Adults feed on fungi and lichens. Night and damp weather.

Behavior & Young

Sheltered logs provide refuges when the surface dries. This egg-laying slug feeds on fungi and lichens and helps cycle nutrients through woodland food webs.

Did You Know?

A complete mantle

The covering over its back gives mantleslugs their name.

Woodland grazer

Fungi and lichens are important foods.

A damp refuge

Loose bark and rotting wood provide shelter.

Range & Sightings

Where It Lives

Native to eastern North America, from southern Canada into the southeastern United States and west to eastern Texas. Some older records may involve similar mantleslugs. Observation maps show reported sightings, not the full range.

Recorded Observations

Explore reported sightings on iNaturalist. Observation records are not a complete range map.

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