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Stylommatophora is an order [3] of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon includes most land snails and slugs . Stylommatophorans lack an operculum , but some close their shell apertures with temporary "operculum" ( epiphragm ) made of calcified mucus.
Arion fasciatus is in many ways similar to most other stylommatophoran slugs. They are hermaphroditic.They have a head, mantle, and foot.There are two sets of retractable tentacles on their heads: the upper pair have light-sensing organs, and the lower two are used to smell.
Prophysaon coeruleum is a small, narrow slug which is notable for its typical blue-grey colour. [4] It varies in length, adults ranging from 20 to 40 mm (0.8 to 1.6 in), with nearly one-third of that length being the mantle. [4]
Molluscicides (/ m ə ˈ l ʌ s k ɪ ˌ s aɪ d s,-ˈ l ʌ s-/) [1] [2] – also known as snail baits, snail pellets, or slug pellets – are pesticides against molluscs, which are usually used in agriculture or gardening, in order to control gastropod pests specifically slugs and snails which damage crops or other valued plants by feeding on them.
Arion fuscus, also known as the "dusky arion", is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs. Arion subfuscus (Draparnaud, 1805) is considered by some authors to be a partial synonym for Arion fuscus .
It is an opening in the right side of the mantle of a stylommatophoran snail or slug. Air enters through the pneumostome into the animal's single lung , the air-filled mantle cavity. [ 1 ] Inside the mantle cavity the animal has a highly vascularized area of tissue that functions as a lung.
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 ...
Ambigolimax valentianus (also known as Lehmannia valentiana) is a species of terrestrial slug, a pulmonate gastropod mollusc in the family Limacidae. [6]It has spread very widely around the world, especially in greenhouses, where it can be a pest; in warmer climates it has often then spread outdoors.