CLASS MONOPLACOPHORA (mono, one + plak, plate + phoros, bear)

CLASS MONOPLACOPHORA (mono, one + plak, plate + phoros, bear)

The members of the class Monoplacophora have an undivided, arched shell. They have a broad flat foot. They have serially repeated pairs of gills and foot-retractor muscles. They are dioecious. Nothing is known of their embryology. This group of molluscs was known only from fossils. But limpet like its member Neopilina was discovered in 1952. It was renovated from a depth of 3,520 meter off the Pacific coast of Costa Rica.


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