From Krakiipedia, the unofficial free GemStone IV encyclopedia.

A giant stuffed lizard

This lizard hangs in the South Exhibit Room of the River's Rest Museum.

A closer look

The massive, stuffed lizard hangs from the ceiling by nearly invisible wires. Although the tag attached to the creature identifies it as a 'saltwater corkindrill' it is very clearly a crocodile, although one of extraordinary size.