1) Amphibian family 2) Family ambystomatidae 3) New world salamanders 
(from the article `Caudata`) ...with prearticular bone in lower jaw; 2 pairs of limbs; external gills in a few species that remain permanently aquatic; aquatic, semiaquatic, and ... ...Members of the family Salamandridae extend south to extreme northern Africa, the southern foothills of the Himalayas, northern Vietnam, and the ... [2...
A family of the class urodela which includes 4 living genera, about 33 species, and occurs only in north america. Adults are usually terrestrial, but the larval forms are aquatic. ... (12 Dec 1998) ... 
[n] - New World salamanders
family Ambystomatidae noun New World salamanders