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Identification of the Irish Chiton Species

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1a.
The girdle is dotted with intersegmental tufts of spicules.

Intermediate valves have a diamond-shaped area of tegmentum. (If valves are separate from the girdle, wide insertion plates are visible.)

1b.
Girdle without isolated tufts of spicules.

Individual intermediate valves with a generally rounded rectangular shape to the tegmentum.

   
Acanthochitonidae: Acanthochitona
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