"Ambystoma nothagenes" is a unisexual, triploid hybrid of "Ambystoma laterale", "Ambystoma texanum" and "Ambystoma tigrinum", while hybrids of "Ambystoma platineum" and "Ambystoma texanum" have been found to be tetraploid.Most "Ambystoma" hybrids are described by how many haploid sets of chromosomes they contain from each of their parent species, reflecting their level of ploidy.