SINCE 1828
Amphineura
plural noun
Am·phi·neu·ra
| \ -ˈn(y)u̇rə\
Definition of Amphineura
: a class of bilaterally symmetrical marine mollusks sometimes considered an order of Gastropoda, comprising the chitons and their related forms, having two lateral and two ventral nerve cords, and being commonly divided into the Polyplacophora and the Aplacophora
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