1 - Porthmadog to Abersoch
Thin Tellin Shells - Minffordd Beach
Thin Tellin (Tellina Tenuis) brightly coloured shells, found in the sands at the previous location.
The shell, up to 19 mm wide, is thin and brittle, rounded triangular in shape overall and somewhat flattened.
Tellina tenuis burrows in clean sand and has a large foot and two long siphons which it extends to the surface of the sediment.
Water and food particles are drawn down to the mollusc through one siphon while water is expelled through the other.
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Around the Thin Tellin are Common Razor Shells , Dog Whelk and Snail Shells , Auger Shells
Ref: NW 4854
Date: 15/10/2025
Location: SH 599 376
