Newt Larva
We've given this a separate entry just in case you find one and don't know what it is.
Newt larvae are baby newts, just like tadpoles are baby frogs. The female newt lays 150-300 eggs per season and she wraps each egg in the leaf of an aquatic plant for camouflage and protection. The larvae hatch out after four weeks. They have gills (the frilly bits behind its head) which mean they can breathe under the water (just like fish). Over the next 6-9 weeks, the larvae transform into juvenile newts. They develop front legs and then back legs (which is the opposite of frogs and toads). They are amphibians so during this time they lose their gills and develop lungs to breathe instead.