Английская Википедия:Caudal mucous pit

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Файл:Ovachlamys fulgens 3.jpg
Ovachlamys fulgens (family Helicarionidae) with caudal horn on the tail end of the foot.
Файл:Geomalacus maculosus 5.jpg
Drawing of the tail end of the body of Geomalacus maculosus showing supra-pedal grooves and triangular caudal mucous pit.
Файл:Ariophanta interrupta.jpg
Drawing of Ariophanta interrupta shows the large caudal mucous pit on its tail end.
Файл:Arion lusitanicus, Adultform.jpg
Dorsal view of Arion vulgaris shows caudal mucous pit on its tail end.
Файл:Rød skogsnegl.JPG
Arion rufus shows caudal mucous pit on its tail end.

The caudal mucous pit, or caudal mucous horn, is an anatomical structure on the tail end of the foot of various land snails and slugs, terrestrial pulmonate gastropod mollusks.

The function of this pit is the resorption of mucus when the gastropod is moving[1] (see also Muratov 1999).

An incorrect and yet often-used term for this structure is the "caudal gland".[1] This area also used to be referred to by the term "caudal pore".

Families

Families of snails and slug where a caudal mucous pit exists in every species included:[1]

Families/subfamilies where is caudal mucous pit exists only on some species included:[1]

References

Шаблон:Reflist

Further reading

  • Muratov I. V. (1999) "Analysis of the phylogenetic relationships and their systematic implications in the Limacoinei (=Zonitinia) infraorder (Gastropoda, Pulmonata, Geophila)". Ruthenica 9: 5-26.

External links

Шаблон:Gastropod anatomy

  1. 1,0 1,1 1,2 1,3 Barker G. M. (2001) "Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology." in Barker G. M. (ed.): "The biology of terrestrial molluscs". CABI Publishing, Oxon, UK, Шаблон:ISBN. 1-146, cited pages: page 90 and pages 140-143.