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White Tortoiseshell Limpet

Tectura virginea (O. F. Müller 1776)

Tectura virginea

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Tectura virginea is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae, one of the families of true limpets.[2] It is commonly known as the white tortoiseshell limpet.[3]

The limpets Testudinalia testudinalis and Tectura virginea, infralittoral zone, Bodø, Norway.

Description

T. virginea is rather smaller than Testudinalia testudinalis, the tortoiseshell limpet, growing to 15mm in length with a height of 6mm. The shell is white with purplish bands radiating from the apex.[3] which is tilted forward and about a third of the way along the shell. The flesh is creamy coloured or pale pink. The broad foot is oval and the head bears a pair of long tentacles with tiny black eyes located near their base.[4]

Distribution and habitat

The white tortoiseshell limpet is found on the north west coasts of Europe from Norway south to the Mediterranean Sea including the North Sea. It lives in the neritic zone below low water mark down to a depth of about one hundred metres. It favours rock pools and smooth rock covered with encrusting red algae such as Lithothamnion on which it feeds.[3]

References

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Tectura virginea: Brief Summary

provided by wikipedia EN

Tectura virginea is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae, one of the families of true limpets. It is commonly known as the white tortoiseshell limpet.

The limpets Testudinalia testudinalis and Tectura virginea, infralittoral zone, Bodø, Norway.
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Biology

provided by World Register of Marine Species
Type of larval development: short planktonic, non-planktotrophic
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Diagnosis

provided by World Register of Marine Species
Shell 10-12 mm long, with apex situated at 1/4 from anterior end but not overhanging and not curled up. Outer surface smooth except for growth lines. Colour pink with blurry darker ray and indistinct whitish blotches. Shells of this species may easily be confused with the pulmonate Williamia gussonii (Costa, 1829), which differs in having a more curved profile, with the apex commonly curled up towards the anterior edge and displaying a small spiral protoconch which is never conserved in adult Tectura. The colour is also different, more brownish in Williamia with more distinct rays and no whitish blotches. The animals are markedly different, Tectura with slender cephalic tentacles and Williamia with broad, fringe-like lappets instead.
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Distribution

provided by World Register of Marine Species
Eastern Atlantic, from Svalbard and Norway to Morocco, and the Mediterranean; also Canary Is., Madeira and the Azores, (from shore to ca. 50 m). Gorringe, Ampère and Seine seamounts (moderately common in 70-325 m), Josephine seamount (rare in 200-222 m, probably subfossil)
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Habitat

provided by World Register of Marine Species
Known from seamounts and knolls

Reference

Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.

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