Abstract
Osteopeltidae n. fam. is proposed for Osteopelta mirabilis n. gen. and sp., a limpet from whale skulls trawled on the Chatham Rise and off the Chatham Islands, New Zealand. Osteopelta mirabilis combines a pseudococculinid-like shell and radula with an addisoniid-like animal. Apparent homologies in lepeteloidean and cocculinoidean radulae are discussed.
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