The Silvery Salamander (Ambystoma platineum or JJL) is a species of mole salamander from the United States of America and Canada. It is usually between 5.5 – 7.75 in (12 – 19.9 cm) long and is slender with many small silvery-blue spots on its back and sides. It is brownish grey and the area around its vent is grey. The silvery salamander is a unisexual Ambystoma hybrid species, taking genetic material from both the Jefferson salamander (A. jeffersonianum) and the blue-spotted salamander (A. laterale), having two sets of chromosomes from the Jefferson salamander and one set from the blue-spotted. A similar unisexual Ambystomid, Tremblay's Salamander (Ambystoma tremblayi or JLL), also exists, having two sets from the blue-spotted and one from the Jefferson's.