Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Distribution map
Links to other Web sites

(Montagu, 1803)

Description (shell):
Shell strong, with six to seven turreted whorls. Fine spiral striae and vertical costae mostly obscured by thick periostracum, forming a series of irregular folds on last whorl. Umbilicus occasionally closed and umbilical groove reduced; aperture drawn out and angulate at base of columella (L. crassior-drawing).

Size:
Up to 14 x 10 mm.

Colour:
Yellow.

Animal:
Body as in Lacuna vincta : snout long, broad, with slender cephalic tentacles arising from base, foot elongate, with double edged anterior margin; two short metapodial tentacles project from below operculum. Metapodial tentacles white and less flattened than in L. vincta.

Habitat:
Uncommon. Occurs on mud/gravel at LWST and sublittorally to 90 m.

Distribution:
A circumboreal species, extending south into British waters (Distr. L. crassior).

Lacuna crassior