Yes, from the research I have conducted recently, that is a tiger salamander larva. I have one myself and he is losing his gills( I think. Either that or they are shortening) But I havent had him for long, not even a whole month. Love and care are the directions I follow when taking care of my animals. Mine looks almost exactly like those you have that you posted on the 18th of June. But his gills were not as thick as the ones in that picture. Hope this info helped a bit!