Merrow

Merrow haunted coastal waters, preying on fisherfolk, merfolk, and any other edible creature that crosses their path. These savage monsters snatch and devour unwary prey, hauling drowned corpses back to their underwater grottoes to feed.

Androsphinx

 * Senses: Darkvision.
 * Languages: Abyssal and Aquan.
 * Amphibious:  The merrow can breathe air and water.
 * Attacks:
 * Multiattack: The sphinx can make two attack, one with it claw and one with its bite.
 * Claw: The merrow can make a claw attack.
 * Bite: The merrow can make a bite attack.
 * Harpoon: The merrow can attack with its harpoon and can pull a creature 20 feet toward its self.

Known Merrows
The Mighty Nein encountered merrows in their lair in the Labenda Swamp and defeated a handful of them.