Shells T Travel 08 of 12
Common
periwinkle
Littorina littorea
Our reference shell. Six turns, a modest spire, a round opening.
- W widening
- 2.05
- D distance
- 0
- T travel
- 2.35
- S shape
- round
- turns
- 6.0
The settings our model uses to draw it, tuned by eye against photographs.
The real shell · 16–38 mm
Grey-brown with dark spiral bands; chocolate brown inside.
It lives five to ten years; some reach 20.
- Lives
- Rocky shores of the north-east Atlantic, the Tay included
- In the exhibition
- Room 2, Four numbers: one of three shells for T, how far it slides.