Shells S Shape 12 of 12
Common
whelk
Buccinum undatum
Give the opening a notch at the bottom and the shell grows a siphonal canal.
- W widening
- 1.8
- D distance
- 0
- T travel
- 2.9
- S shape
- oval, canal
- turns
- 7.3
The settings our model uses to draw it, tuned by eye against photographs.
The real shell · up to 10 cm
Undatum means wavy, for the folds across its whorls.
Seven or eight convex whorls end in a large oval opening.
- Lives
- North Atlantic, on the shores of the UK
- In the exhibition
- Room 2, Four numbers: one of three shells for S, the shape of the opening.