Seanet Mid Intertidal

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Katharina tunicata (Wood, 1815)
Phylum Mollusca, Class Polyplacophora, Order Chitonida, Family Mopaliidae

Large distinctive chiton to 120 mm long; wide shiny black leathery girdle covers most of shell valves. 

Common, mid- to low intertidal zones on exposed outer coast where wave action is strong; browses on benthic diatoms & a variety of brown & red algae.

Geo Range: Aleutian Is., Alaska to Pt. Conception
Similar species: no other intertidal chitons are black.

Image: limpet (top left) probably
Lottia pelta? (too large for L. paradigitalis).