- American smelt, rainbow smelt - common smelt of eastern North America and Alaska
--1 is a kind of smelt
--1 is a part of rainbow smelt, Osmerus mordax - rainbow smelt, Osmerus mordax - important marine and landlocked food fish of eastern North America and Alaska
--2 is a kind of smelt
--2 is a member of Osmerus, genus Osmerus
--2 has parts: American smelt, rainbow smelt