Myacea
plural noun
My·a·cea
mīˈāshēə
: a suborder of Eulamellibranchia that comprises bivalve mollusks with well-developed siphons, gaping valves, and a pallial sinus and includes various economically important edible mollusks (as of the genus Mya) see myacidae
Word History
Etymology
New Latin, from Mya + -acea