[mudling]

obviously glockons and oktigi (sketo), slog and slegs and to some peoples annoyence fagus and steef. gabbits and mudokons have a resemblence as do vykers and interns. of course bats, birds and bees come in more than one form in oddworld. and maybe,just maybe, grubbs and outlaws. sligs look a little bit like parrimites.
i think grubbs a just a way of getting away from abe and therefore making a new speacies which resemble mudokons. the glocktigi are supposed to be the "bad guys" of the oddworld games but i hope this changes and maybe we even end up with a gluckon hero!
hope that helps!