Umbraculum umbraculum

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Umbraculum umbraculum

From Wikipedia, the free encyclopedia

Umbraculum umbraculum

Umbraculum umbraculum showing rhinophores and eyes
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Euopisthobranchia clade Umbraculida
Superfamily:	Umbraculoidea
Family:	Umbraculidae
Genus:	Umbraculum
Species:	U. umbraculum
Binomial name
*Umbraculum umbraculum* (Lightfoot, 1786)
Synonyms^[1]
List Patella ombracula Blainville, 1819 Umbraculum bermudense (Mörch, 1875) Umbraculum botanicum Hedley, 1923 Umbraculum indicum (Lamarck, 1819) Umbraculum mediterraneum (Lamarck, 1819) Umbraculum ovalis (Carpenter, 1856) Umbraculum plicatulum (Martens, 1881) Umbraculum pulchrum Lin, 1981 Umbraculum sinicum (Gmelin, 1791) Umbrella indica Lamarck, 1819 Umbrella mediterranea Lamarck, 1819

Umbraculum umbraculum, common name the umbrella slug, is a species of large sea snail or limpet, a marine gastropod mollusc in the family Umbraculidae.^[2] It is found in tropical to warm temperate parts of the Indo-Pacific and Atlantic Oceans, where it feeds on sponges.

Description

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Umbraculum umbraculum is a large mollusc growing to a length of up to 20 cm (8 in), with a relatively small external shell on the dorsal surface. This shell is a flattish cone and is usually encrusted with epiphytic organisms, both plant and animal. The mantle is roughly circular in outline, and is covered with pustules; the ground colour of the mantle varies, usually being orange or brownish, and the pustules are usually white. The mollusc does not elongate when crawling and the location of the head is revealed when it thrusts out its rolled rhinophores from beneath the shell. At the base of the rhinophores are a pair of eyes, and beneath is a cleft which contains the mouth. The radula is broad and is armed with many small teeth.^[3]^[4] The sole of the foot is smooth and flat; the gills are bipinnate and are located in the right side of the body.^[5]

Distribution and habitat

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Umbraculum umbraculum is found in the Pacific Ocean in both the tropics and in warm temperate regions. Its range includes Indonesia, Australia, New Zealand, Hawaii, Mexico and Panama.^[4] It also occurs in the Red Sea, the Mediterranean Sea and the warmer parts of the Atlantic Ocean. In 2016, researchers reported that it had been observed for the first time in the Bay of Biscay in surveys undertaken between 2011 and 2014, in what seemed to be a northward shift in its range; this "tropicalisation" was attributed to a rise in sea temperature.^[5] It occurs in both shallow water and at depths down to about 275 m (900 ft).^[4]

Ecology

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Umbraculum umbraculum feeds on sponges and its colouring often makes it well camouflaged. It rasps the surface of the sponge with its radula, opening the cleft on its base wide so that it can press its mouth against the surface of the sponge. This slug has been found on Tethya spp., Aaptos aaptos, Ancorina alata and Plakina trilopha.^[3] The eggs are laid in a long, coiled ribbon and the larvae are planktonic.^[5]

Gallery

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References

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^ Rosenberg, G.; Gofas, S. (2010). Umbraculum umbraculum (Lightfoot, 1786). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141879 on 23 July 2020
^ Goemans, Bob. "Umbraculum umbraculum: Umbrella slug". SaltCorner. Retrieved 24 July 2020.
^ ^a ^b Rudman, W.B. (7 March 1999). "Umbraculum umbraculum (Lightfoot, 1786)". Sea Slug Forum. Retrieved 23 July 2020.
^ ^a ^b ^c Miller, Michael D. (2004). "Umbraculum umbraculum". Opisthobranch of the week. The Slug Site. Retrieved 23 July 2020.
^ ^a ^b ^c Arias, A. & Crocetta, F. (2016). "Umbraculum umbraculum (Gastropoda: Heterobranchia) spreading northwards: additional evidence to the "tropicalization" of the Bay of Biscay". Cahiers de Biologie Marine. 57: 285–286.

External links

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Wikimedia Commons has media related to Umbraculum umbraculum.

Wikispecies has information related to Umbraculum umbraculum.

Scheda Umbraculum mediterraneum – Acquarioitalia.it

Taxon identifiers
Umbraculum umbraculum	Wikidata: Q1056697 Wikispecies: Umbraculum umbraculum ADW: Umbraculum_umbraculum AFD: Umbraculum_umbraculum BOLD: 676091 CoL: 7DGK7 EUNIS: 61879 GBIF: 5193004 iNaturalist: 49896 IRMNG: 10242260 ITIS: 78122 NCBI: 219656 NZOR: bb9d0659-7d28-4fa2-8fe2-85d1c1929a73 OBIS: 141879 Open Tree of Life: 823228 SeaLifeBase: 8468 WoRMS: 141879

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