that is not an ajolote.
an ajolote or "axolotl" is the common american salamander but in the valley of central mexico, due to the lack of iodine in the water it retains its gills through adulthood.Salamanders like other amphibians have gills in their larval phase like tadpoles.but loose them when they reach adulthood. another intresting fact about axolotls is that they can regrow full limbs if severed.
cheers from mexico city