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Encyclopedia > Pneumostome
Diagram describing the different parts of a slug
Diagram describing the different parts of a slug
A black slug, Arion ater L., on a rock, with its pneumostome clearly visible.
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A black slug, Arion ater L., on a rock, with its pneumostome clearly visible.

A pneumostome is an opening in the right side of the mantle of a Pulmonata ordered or subclassed slug (suborder Stylommatophora) or snail, through which its single lung is connected. The frequency of pneumostome closing and opening is typically less than 0.5 closures per minute in fully hydrated slugs and snails. The rate of closures per second increases the more dehydrated the slug is. Parts of a slug File links The following pages link to this file: Slug Categories: GFDL images ... Parts of a slug File links The following pages link to this file: Slug Categories: GFDL images ... Binomial name Arion ater (Linnaeus, 1758) The black slug (sometimes black arion, European black slug, or large black slug) is a terrestrial slug species found in northern Europe (including Britain) and the Pacific Northwest. ... The mantle is an organ found in mollusks. ... Suborders Systellommatophora Basommatophora Eupulmonata Stylommatophora The Pulmonata are an order (sometimes subclass) of snails and slugs that have developed lungs. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... In object-oriented programming, subclass is a class that is derived from another class or classes. ... Anatomy of a slug A slug from North Bend, WA Slugs are gastropod molluscs without shells or with very small internal shells, in contrast to snails, which have a prominent coiled shell. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... The name snail applies to most members of the molluscan class Gastropoda that have coiled shells. ... The lungs flank the heart and great vessels in the chest cavity. ...


External links

  • Pneumostome's response to dehydration

 
 

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