Kings River Slender Salamander is an amphibian. It begins with the letter k.
none there is no amphibian starting with n
anything that starts as a tadpole or is slimy... is an amphibian!
salamander
Plains Leopard Frog is an amphibian. It begins with the letter p.
Urocordylus is an extinct amphibian. It begins with the letter u.
Toad.
bullfrog
salamander
Here's one: Japenese giant salamander
Frog.
newt
There's the American Toad , American Bullfrog and the Alligator Newt .