The silvery salamander ("Ambystoma platineum" or LJJ) was once considered a distinct 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. This unisexual "Ambystoma" hybrid species, has been grouped with other unisexual ambystomatids that takes genetic material from Jefferson salamander ("A. jeffersonianum"), streamside salamander ("A. barbouri"), small-mouthed salamander ("A. texanum"), tiger salamander ("A. tigrinum") and the blue-spotted salamander ("A. laterale").