aanappaachan alphen-chaam caponeonpace cephalomappa chalcocolona chelopechene choele-choel coelomocoela elopocephala epencephalon happenchance helenoconcha hellenophone hellhealheel henohenomohe hocochchcooh holocephalan homehomehome lamellophone loop-o-plane machocamacho mallocephala melanophloea mmmmmmmmmmmm neencephalon neoapachella nephelochloa nepheloploce omalocephala omphalophana ooohooohoooh palaemonella palaeoconcha paleochannel palmellaceae peaceachance pealleappale phaeochlaena planchonella poohpoohpooh