Bivalves rhymes with:
absolves, bookshelves, delves, dissolves, elves, evolves, involves, ourselves, resolves, revolves, selves, shelves, solves, theirselves, themselves, valves, wolves, yourselves
Bivalves sounds like:
baalbek, baalbeq, bailiffs, balbach, beilfuss, beliefs, believes, bellhops, bilbao's, billips, billups, blips, blobs, blowfish, blowpipes, blubaugh, bluffs, bolivia's, bouillabaise, bulbous, bulbs