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

(Risso, 1826)

Description (shell):
Shell glossy, globose, with 6-7 slightly tumid whorls; last whorl accounts for most of shell height; sutures shallow, spire almost flat-sided. Sculpture of numerous, fine, prosocline growth lines; smooth to naked eye. Periostracum often retained within umbilicus. Aperture large, almost semicircular, with a thickened peristome; outer lip arises tangential to last whorl; inner lip partially occludes rather elongate umbilicus, and swells to fill angle between outer lip and last whorl (E. pulchella-drawing).

Size:
Up to 16 x 14 mm.

Colour:
Buff or light horn-coloured, columella and base pale; five spiral rows of brown marks on body whorl, one row on whorls of spire.

Animal:
Snout short, broad, with extensible proboscis; cephalic tentacles long, rather flat. Eyes are insunk and usually invisible. Foot large, with expanded propodial and opercular lobes; in active animals propodium forms a ploughshare, covering anterior of shell, opercular lobes being drawn up around posterior part of the shell.

Habitat:
On sand and gravel; usually sublittoral from 10 to 50 m (recorded from 2000 m), but occasionally at LWST.

Distribution:
Distributed from Mediterranean to Norway (Distr. E. pulchella).

Euspira pulchella