07 Patella pellucida. Growth Stage 3 (GS3). Littoral. Aberdeen, Scotland, 1971, except 5 from Llŷn, N. Wales, April 1969.

Juveniles with low, streamlined profiles and apex cut away from anterior of shell. The shallow saucer-like shell is very thin and fragile.

1: height (0.9mm) 28% of length (3.2mm).

2: height (1.1mm) 33% of length (3.3mm).

3: height (1.2mm) 31% of length (3.9mm).

4: height (1.7mm) 29% of length (6.1mm).

5: height (1.6mm) 24% of length (6.7mm).

6: apex cut away from anterior of shell.

Mean H/L 27% in Graham & Fretter (1947).

Concise Key id. features: 1Pp flic.kr/p/Z4FxDe

Part 1, SHELL FORMS: 2Pp flic.kr/p/Z4FxAi

Part 2, BODY & ANATOMY: 3Pp flic.kr/p/Z4FxtK

Part, 3 HABITS & ECOLOGY: 4Pp flic.kr/p/Z4Fx9M

Sets of OTHER SPECIES: www.flickr.com/photos/56388191@N08/collections/

Done