<Does "congeneric" mean with identical DNA?> No, the root here is "generic", not "genetic". Congeneric means "belonging to the same genus". If two species in a given genus show marked differences, taxonomists might question whether they are truly congeneric, or whether they should be assigned to separate genera. The same question might be asked of two very similar species currently assigned to separate genera. Should the two be so classified, or are they actually congeneric? Similarly, conspecific means "belonging to the same species". One might ask whether two very similar forms are conspecific. In other words, should they be classified as two distinct species, or considered forms of one species (conspecific)? Obviously, any two forms or individuals that are conspecific are also congeneric. Paul M.