Angulus squalidus

CLICK ON IMAGES FOR CAPTIONS AND TO ENLARGE

Submitted by Steve Wilkinson on Sat, 05/12/2009 22:14

The accepted name for this species is now, Bosemprella incarnata (Linnaeus, 1758).

Solid shell up to 4.5cm in length. Light yellow, orange, pink or fawn - sometimes banded. The inside of the shell is orange, tending to be lighter towards the edges. The shell surface is sculptured with concentric ridges with the left valve smoother than right. Cruciform muscle scars sometimes distinct.

Key identification features

Marked ridge (keel) running from the beaks to the posterior of the shell
Lower margin of pallial sinus confluent with pallial line
Solid shell

Similar species

Angulus tenuis is brittle and ridge from the beaks is less obvious

Ecology and behaviour

Found sublittorally in muddy sand. Lies on left valve (causing this to be smoother).

Distribution and status

Scarce. From the the south of Norway to the Iberian Peninsula.

The map provided here shows the distribution of the species based on Conchological Society data.