Feeding Structures, Behavior, and Microhabitat of Echinocyamus pusillus (Echinoidea: Clypeasteroida)

In the Firth of Lorne, Scotland, Echinocyamus pusillus was found most abundantly in highly variable, poorly sorted substrates at depths of 10-20 m. It was common in areas exposed to extensive wave and tidal current activity, but absent in fine sediments in sheltered areas. In size, feeding mechanism...

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