The "Froglok Shin Warrior" in Firiona Vie appears, in fact, to be spawning as a shaman.
The following links seem to suggest that it should be a warrior:
http://216.49.224.132/eq/ak/zone.php?name=firiona
http://mqemulator.net/zone.php?name=firiona&order=name
However, given the above sources, I'm a bit skeptical.
Magelo seems to think it could be both:
http://eq.magelo.com/npc/1626
Still, given the number of shaman frogs running around in the same zone, it's likely been mislabeled.