Lacuna crassior
Species
Photographer / copyright holder
Steve Wilkinson
Length = 12mm. Collected from Sandwich Bay, Kent on 04/04/1982.
Lacuna crassior
<em>Lacuna crassior</em> (Montagu, 1803)
Lacuna crassior
Species
Photographer / copyright holder
Steve Wilkinson
Length = 12mm. Collected from Sandwich Bay, Kent on 04/04/1982.
Lacuna crassior
Distribution and status
Uncommon.
Generally an Arctic species that reaches it southern limit around Britain. It has been recorded from the Channel Isles and Roscoff.
Ecology and behaviour
Generally an offshore species but can occur very low on the shore. Relatively little is known about its ecology but there are records of it feeding on the bryozoan Alcyonium gelatinosum.
Similar species
- Lacuna vincta has less pronounced whorls and usually four spiral bands on the last whorl
Key identification features
- Very pronounced whorls
- Plain shell lacking spiral bands on the last shell
- Thick periostracum
Taxon version key
[NBNSYS0000175974]
Sort order
1180
Taxonomic group
Marine snail
Relatively solid shell up to about 14mm high. It has about 6 or 7 whorls that appear very stepped (pronounced) in profile.