<check if that is a greater seawolf>

FREQUENCY: Very rare ([Cold Saltwater Surface], [Cold Saltwater Depths])

FREQUENCY: Very rare ([Temperate Saltwater Surface], [Temperate Saltwater Depths])

FREQUENCY: Very rare ([Tropical Saltwater Surface])

NO. APPEARING: 4-16
ARMOR CLASS: 5
MOVE: 9" // 27"
HIT DICE: 9+2
% IN LAIR: Nil
TREASURE TYPE: Nil
NO. OF ATTACKS: 1 or 2
DAMAGE/ATTACK: 3-12 or 1-2 and by weapon type
SPECIAL ATTACKS: Nil
SPECIAL DEFENSES: Hit only by iron, silver, or +1 or better magic weapons
INTELLIGENCE: Low to high
ALIGNMENT: Chaotic evil
SIZE: L (12' to 15' long) or M
LEVEL/X.P. VALUE: VI | 900 + 12

SAVES: 8.9.10.9.11

Seawolves are lycanthropes afflicted with a most evil malady. <-1 Morality? : GHA.117>
They roam the waters in packs,
hunting and seeking vessels so as to attack and inflict others with their hateful curse. <clarify: remove curse> <hunting skill?>
Most seawolves were formerly fishermen or sailors. <secondary skill>
Upon sighting a vessel they will follow,
slip aboard in human form,
and attack.
Typically,
1 or 2 deckhands will be bitten to death by the seawolves and their weapons taken.
Then the lycanthropes will begin a general assault.
Note that iron weapons (as well as silver and magical ones) harm seawolves.
Bites of non-fatal sort cause seawolf lycanthropy in 2-5 days. <note: perhaps this does not require 50% damage, as normal>
The afflicted individual will then hurl himself or herself overboard in the night,
change to the seawolf form,
and swim away in SEARCH of a pack of fellow seawolves.

Seawolves are air breathers.
Although able to stay submerged for 17-24 <(16+d8)> minutes,
they must surface to gain oxygen.
In human form a seawolf has a lupine visage,
tiny ears,
and is covered with thick fur.
The hair of the head streams down the neck and shoulders in a mane.
In seawolf form the creature appears much as if it were a huge,
wolf-headed seal which has fangs filling its mouth.