In biology terms the difference between hapantotype and lectotype

is that hapantotype is any of two or more type specimens of protistans, where the type consists of two or more specimens of directly related individuals representing distinct stages in the life cycle, and collectively treated as a single entity. Lectotypes cannot be designated from among them while lectotype is a biological specimen or illustration later selected to serve as definitive type example of a species or subspecies when the original author of the name did not designate a holotype.