Shade
Monster Junkie
Here's a "giant goanna", so it seems like a good time to convert it. 
Megalania (giant plains lizard)
CLIMATE/TERRAIN: Savannah
FREQUENCY: Rare
ORGANIZATION: Solitary
DIET: Carnivore
NO. APPEARING: 1-4
ARMOR CLASS: 5
MOVEMENT: 15
HIT DICE: 7
THAC0: 13
NO. OF ATTACKS: 1
DAMAGE/ATTACKS: 2-16 or 2-5
SIZE: G (26'long)
MORALE: Average (8-10)
XP VALUE: 650
Megalania was not a mammal, but a giant lizard that hunted on the Pleistocene plains of Australia. It looked much like modern monitor lizards and the Komodo dragon, having long, serrated teeth.
Combat: The giant plains lizard attacks with its bite. Like other giant lizards, the bite does double damage on an attack roll of 20. Anyone behind the lizard can be attacked by a slash of its tail, doing 2-5 hp damage and being knocked down if a dexterity check on 4d6 is failed.
Habitat/Society: Megalania is a solitary hunter, inactive at night and during the hottest hours of the day. It ambushes its prey from concealing grass and shrubs. As with most reptiles, the young are left to fend for themselves, receiving no care from the parents. The giant plains lizard is at the top of the food chain, having no natural enemies.
Originally appeared in Dragon Magazine #167 (1991).
Here's the Wikipedia entry that calls it a "giant goanna".
It has even achieved cryptid status: http://www.cryptozoology.com/cryptids/megalania.php
Megalania (giant plains lizard)
CLIMATE/TERRAIN: Savannah
FREQUENCY: Rare
ORGANIZATION: Solitary
DIET: Carnivore
NO. APPEARING: 1-4
ARMOR CLASS: 5
MOVEMENT: 15
HIT DICE: 7
THAC0: 13
NO. OF ATTACKS: 1
DAMAGE/ATTACKS: 2-16 or 2-5
SIZE: G (26'long)
MORALE: Average (8-10)
XP VALUE: 650
Megalania was not a mammal, but a giant lizard that hunted on the Pleistocene plains of Australia. It looked much like modern monitor lizards and the Komodo dragon, having long, serrated teeth.
Combat: The giant plains lizard attacks with its bite. Like other giant lizards, the bite does double damage on an attack roll of 20. Anyone behind the lizard can be attacked by a slash of its tail, doing 2-5 hp damage and being knocked down if a dexterity check on 4d6 is failed.
Habitat/Society: Megalania is a solitary hunter, inactive at night and during the hottest hours of the day. It ambushes its prey from concealing grass and shrubs. As with most reptiles, the young are left to fend for themselves, receiving no care from the parents. The giant plains lizard is at the top of the food chain, having no natural enemies.
Originally appeared in Dragon Magazine #167 (1991).
Here's the Wikipedia entry that calls it a "giant goanna".
It has even achieved cryptid status: http://www.cryptozoology.com/cryptids/megalania.php
