Glappid

"The Glappid is a scavenger that feats on the remains of dead fish. It has formed a symbiotic bond with the Seram Beetle with extracts and feeds upon any toxins ingested by the Glappid."

Glappids can be greater than 40 KGs.

An effective farming method:
 * 1) Get Twilight Bait.
 * 2) Head to the coast on the lower right corner of the map
 * 3) Wait till about 15 minutes before dawn and then use your bait.

You'll find plenty of Murkrays doing this as well