Morphometrics of teratological specimens from two species of Plaxiphora (Mollusca, Polyplacophora) from the South Pacific Ocean

Teratology is a congenital abnormality commonly observed in the shells of mollusks. A new case of teratology in polyplacophorans is documented. This corresponds to a new case of coalescence in the species Plaxiphora aurata , an extant marine mollusk from Punta Arenas (53°S), in southern Chile. In th...

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