1e MM version:
Lamprey, Giant
Freq: Rore
# App: 1-4
AC: 6
Move: 9"
HD: 5
% in lair: Nil
Treasure: Nil
Att: 1
Dmg: I-6
SA: Drain blood
SD: Nil
MR: Standard
Int: Non-
Alignment: Neutral
Size: M
Lompreys are leech-like eels which inhabit both fresh ond salt water: They
do not inhabit shallow bodies of water. They feed by biting their victims,
fastening themselves to the hapless creatures with sphincter-like mouths
ringed with cruel teeth. Once attached the lamprey will begin to drain
blood on the next and each successive melee round. The rate of blood
drain is equivalent to 2 hit points of damage per hit die the lamprey has.
Thus, o giant specimen will drain blood causing 10 hit points of damage
per melee round.
2e Monstrous Manual version:
Fish #AP AC MV HD THAC0 # of Att Dmg/Att Morale XP Value
Lamprey, Giant 1-4 6 Sw 9 5 15 1 1-6 Average (9) 270
The lamprey feeds by biting its victims, and fastening itself by its sphincter-like mouth. Once attached, the lamprey drains 2 hit points per Hit Die of blood on the next and successive rounds. Sea lampreys are especially susceptible to fire, making their saving throws against fire-based attacks with a -2 penalty.