|MOLLUSCA : ARCHAEOGASTROPODA : Trochidae||SNAILS, SLUGS, ETC.|
Description: This topshell has a straight-sided conical shell, usually with markings in pink and red. A white form lyonsii is common at some localities, especially in strong tidal streams.
Habitat: Predominantly a sublittoral species, almost ubiquitous on rocky substrata where it feeds on a variety of sessile invertebrates, especially hydroids.
Distribution: Widely distributed all round the British Isles.
Similar Species: Juveniles could be confused with other topshells such as Clelandella clelandi.
Key Identification Features:
Distribution Map from BioMar data for Ireland - Google Earth map: download this placemark (not got Google Earth installed?)
Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.
|Picton, B.E. & Morrow, C.C., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland |
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