Two headed creatures in Myth, Legend, and D&D

[Olgar Shiverstone]

So I'm looking for names of creatures with two heads (the exact number of the counting, not more nor less) in myth, legend, and D&D. I've got only the short list below so far ... what am I missing?

Amphisbaena - two headed snake
Demogorgon - two headed demon
Ettin - two-headed giant
Janus - two-headed god

There's got to be a ton more. Isn't there a named two-headed dragon?

 

[Dioltach]

Wasn't Janus more a two-faced god than two-headed? As in, he had one face on the front of his head (to look forward to the future) and one face on the back (to look back into the past).

 

[Voadam]

I believe there was a two headed troll in the 1e Fiend Folio.

Devil Dogs too.

 

[Voadam]

In the 3e Fiend Folio the two-headed dog is called a death dog.

Klurchir demons from there have a giant second mouth in their abdomen, so almost a second head.

Ghostly Visage is an undead parasite that can manifest as a transparent face over its host's.

 

[Voadam]

I remember a two headed lich in the Great Kingdom from the AD&D module Fate of Istus.

 

[Voadam]

In the 3e Monster Manual II there is the two-headed Dread Linnorm.

 

[Voadam]

By D&D do you mean just TSR/WotC or do you include things like Castle and Crusades' Goblin Hound Amung or the two-headed ogre mages which I believe are in the d20 Manual of Monsters for Warcraft?

 

[Dannyalcatraz]

Hydras, even the Learnean ones, could have as few as 2 heads.

The 3Ed Savage Species multi headed template starts with 2.

 

[Hriston]

In some accounts, Cerberus, the hound of Hades, has only two heads. (He usually has three.) Also, his brother, Orthrus is a monstrous dog with two heads who was slain by Heracles.

 

[Dioltach]

Dr Doolittle features the Pushmi-Pullyu, which has heads at either end of its body.