Contains all monsters with the following ASCII glyphs:
a (ants)
b (batty monsters)
h (hounds and hogs)
j (slugs)
k (killer bees)
l (lizards) but not drakes (also l)
r (rodents)
s (spiders and insects)
w (worms)
y (flying insects)
B (beetles)
F (frogs)
S (snakes)
U (bears)
Y (yaks, sheep and elephants)
; (water monsters) and jellyfish (J)

See mon-data.h.
