Agathodaemon vs Coiled Serpent/Snake

[OldMoney]

I have seen coins with this reverse type, such as the one
illustrated, alternately described as being a) Agathodaemon,
but also simply as b) Coiled Serpent or Snake (sometimes also
depicted Wreathed, Radiate, or Nimbate).

What is the difference between these two characters, if in fact
there is any, and what is the best description to use a) or b)?
It seems to be Thracian cities where the two descriptions are
used, as opposed to Egyptian Alexandria, where it appears
that a) is used more consistently.

What do you think?

Walter
{dealer's image}

[gordian_guy]

https://www.forumancientcoins.com/moonmoth/snake_coins.html

c.rhodes

[iwaniw]

Walter:

Agathodaemon comes from the inscription on Nero's Alexandrian tetradrachms with this male serpent.

There is also Alexandrian types with the head of Sarapis on a serpent (standing alone or on the back of a horse). There are also facing serpents types (male and female) usually on hemdrachms but sometimes on drachms and tetradrachms.

Iwaniw

[OldMoney]

Thanks Charlie and Iwaniw,

Another suggestion kindly put forward by Prof. Dr. Weisser is Glycon:
https://en.wikipedia.org/wiki/Glycon

From a quick glance, it may be that Agathodaemon was portrayed on
Egyptian coinage, and that the Serpent or Glycon (and associated cult)
was more typical of Thracian mints, and a few others in Asia Minor.

Interesting stuff. More work to be done!

Walter