Argus
Briareus
Cerberus
Charybdis
Cyclops
Echidna
Gorgon
Harpy
Hydra
Loch Ness monster
Medusa
Minotaur
Pegasus
Python
Scylla
Sphinx
Talos
Typhon
Xanthippe
amazon
blackmailer
bloodsucker
centaur
chimera
cockatrice
dragon
drake
extortionist
fishwife
griffin
hippocampus
leech
mermaid
merman
nixie
ogre
ogress
predator
profiteer
racketeer
raptor
roc
salamander
satyr
scold
sea horse
sea serpent
shakedown artist
shark
shrew