A salamander has the torso of a man atop the body of a great snake. Salamanders are generated with a spear (6/7 chance) or a trident (2/21 chance) or a stiletto (1/21 chance). These are not the salamanders from real life but rather are based on the monsters from D&D. They are one of the few monsters that cannot be genocided.
Salamanders appear in large numbers on the Plane of Fire.
When #chat-ted to, the salamander will mumble incomprehensibly.
For hundreds of years, many people believed that salamanders
were magical. In England in the Middle Ages, people thought
that fire created salamanders. When they set fire to damp
logs, dozens of the slimy creatures scurried out. The word
salamander, in fact, comes from a Greek word meaning "fire
This page is based on a spoiler by J. Ali Harlow, available at http://www.juiblex.co.uk/nethack/VernonSpoilers/MonsterManual/contents.html