Slug (Stripted Greenhouse slug) Ambigolimax valentianus
(unranked): clade Heterobranchia
(unranked): clade Euthyneura
(unranked): clade Panpulmonata
(unranked): clade Eupulmonata
(unranked): clade Stylommatophora
(unranked): informal group Sigmurethra
(unranked): clade limacoid
Species: A. valentiana
Binomial name: Ambigolimax valentianus
Synonyms: Lehmannia valentiana, Limax valentianus, Limax valentiana, Limax poirieri, Limax marginatus.
Common name: Stripted greenhouse slug, Three band garden slug, Greenhouse slug, Spanish slug, Hothouse alien, Striped Field Slug
Ambigolimax valentianus is a species of air-breathing nocturnal land slug that is native to Spain and Portugal.
It is a synanthropic slug that has been introduced to disturbed habitats worldwide. This introduced species of air-breathing land slug is found throughout New Zealand.
It is a translucent brownish slug with darker mantle bands. Two bands are usually prominent; one on either side of the body’s midline, but the lower third pair of bands may be faint. The mantle has multiple fingerprint like pattern ridges. The sole is pale and unicolorous in this species. The breathing pore (pneumostome) is located on the right, in the posterior third of the mantle. Mature adults can grow to a length of about >75 mm.
This slug produces copious amounts of slime as a defence mechanism. The oval eggs produced by this species are yellow and measures 2.25 mm wide. There may be as many as 60 eggs per clutch.
They live moist habitats and consume decaying organic mater and living plant material. It is a serious pest in greenhouses. It is also found in plant nurseries, allotments, under dead wood and in compost bins.
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