Solid shell up to 6.5 cm long. Plump shell that can be as wide as it is long. Pallial sinus small and triangular. Sculpture strong concentric ridges which are warty especially towards the front margin and the sides. Yellow-brown occasionally with three or four red-brown or purple rays; sometimes broken or zigzag. Inside white but may be stained purple or brown.

Solid shell up to about 5cm in length. Cream, grey, light brown or yellowish in colour sometimes with rays, streaks or blotches of brown or purple. Sculpture of numerous concentric rings with fine radiating lines. Concentric ribs generally stronger on the posterior area of the shell. Each valve has three cardinal teeth; the centre tooth on the left valve and centre and posterior on the right valve bifid.

Fragile brown shell but quite plump. Sculpture of fine concentric rings. Muscle scars and pallial line weak.

Solid shell up to 1.5cm in length. The shell is white but obscured by brown periostracum. The surface of the shell is sculptured with concentric ridges.

Solid shell up to 3cm in length. It is white in colour obscured by dark brown periostracum. The surface of the shell is sculptured with concentric ridges and finer lines.

Solid shell up to 4cm in length. The shell is white but obscured by dark brown to black periostracum. The surface of the shell is sculptutred with concentric lines.

Solid shell up to 2cm in length. Broadly oval in outline. Dirty white, light yellow or fawn in colour. Sculpture of up to 50 radiating ribs raised into small tubercles by concentric ridges. Periostracum fibrous and slight.

Fragile shell up to 1cm in length. Shell white but often obscured by a rust coloured deposit. Inside may have a light purple tinge. The surface of the shell is sculptured with concentric lines and a few faint radiating lines.

Tectura virginea. White Tortoiseshell Limpet. Taxon version key: NHMSYS0021056385. Common. Occurs throughout Europe on Atlantic and Med coasts. Conical shell up to 10mm in length. The surface of the shell is smooth. It is white or cream in colour with pink lines which are often broken giving a chequered pattern. Occasionally a pure white specimen may be found.

Solid shell up to about 6cm in length. Colour cream or yellow often with rays or streaks of brown or red brown. Inside of shell white, often tinged with pink. Sculpture of flattened ribs but radial lines are absent. Pallial sinus dies not extend to the midpoint of the shell. Lunule not bounded by a clearly marked groove. Inside glossy sometimes with purple, yellow or orange tinge towards the beaks. Each valve has three cardinal teeth; the centre tooth on the left valve and centre and posterior on the right valve bifid.