none there is no amphibian starting with n
· Marbled Salamander
newt
salamander
Urocordylus is an extinct amphibian. It begins with the letter u.
Quasicaecilia is an extinct amphibian. It begins with the letter Q.
Some three letter words starting with "s" are:sacsadsagsapsatsawsayseaseesetsewsexsheshysinsipsirsitsixslysobsodsonsopsotsowsoyspaspystysuesumsun
newt
Plains Leopard Frog is an amphibian. It begins with the letter p.
Sincere is an adjective. It begins with the letter s.
frog.
Seta is a 4-letter word for hair or bristle starting with S.