Eohippus rhymes with:
bippus, all-purpose, bippus, bumpus, campus, chapas, chiapas, compas, compass, coppess, copus, corpus, encompass, gyrocompass, hippocampus, hospice, kappus, lapis, lupus, malpass, manglapus, molpus, molpus', mopus, multipurpose, negropalpus, oedipus, olympus, opus, pappas, pompous, porpoise, prapas, precipice, purpose, tapas
Eohippus sounds like:
eaves, ebasco, ebaugh, ebbs, efface, efficacious, efficacy, effigy, epes, epic, epic's, epics, epoch, epochs, epoxy, eppes, eppich, epps, epsco, eva's, evacuee, evacuees, eves, evoke, evokes, eyepiece