Classes:

0     - Humanoids (Human, Half-elf, Half-orc)
BFGA  - Birds (Bat, Glider, Bee)
CMa   - Carnivorous mammals (Bear, Cat, Mustelid)
CMo   - Composite monsters (Abraxas, Al-mi'raj, Caustic slime)
DFC   - Dragons/Fell creatures (lesser drake, wyvern, basilisk)
DP    - Dangerous plants (Animal tree, Emitter plant, Sentient)
EAB   - Elementals/Artificial beings (Construct, Golem, Guardian)
EFOP  - Entities from other planes 
        (Demon of the pale, Demon of the void, Genii)
FWC   - Fish/Water creatures (Dolphin, Eel, Octopus)
FM    - Flying monsters (Androsphinx, Banshee, Gargoyle)
FR    - Fairy races (Elf, Fey folk, House spirit)
GR    - Giant races (Cyclop, Lesser giant, Greater giant)
HNUA  - Herbivores/Normally unaggressive animals (Rodent, Armadillo, Anteater)
IAC   - Insects/Arachnids/Crustaceans (Ant, Beetle, Crab)
PA    - Prehistoric animals (Dinosaur, Pterosaur, Elothere)
PDA   - Potential dangerous animals (Primate, Kangaroo, Boar)
RA    - Reptiles/Amphibians (Alligator, Frog, Lizard)
S     - Shapechangers (Lycanthrope, Changeling, Doppleganger)
RDA   - Riding/Draft animals (Camel, Dog, Elephant)
U     - Undead (Standard created undead, Apparition, Barrow-wight)
UndR  - Underground races (Dwarf, Gnoll, Gnome)
UnuR  - Unusual races (Centaur, Gark, Hira'razhir)
WBSDB - Water beasts/Serpents/Dangerous beasts 
        (Great spiders, Great serpents, Unique arthropods)
