Assertion: mollusk | /r/CapableOf | feed on leathery or coralline algae
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Source sentences:
text: The rhipidoglossan (see below) and, to a lesser extent, the taenigloissan radular types are suited to less strenuous modes of feeding, brushing up smaller algae or feeding on soft forms; molluscs with such radulae are rarely able to feed on leathery or coralline algae.