Items, NPCs, quests, objects and spells of patch 1.12.1, read live from the realm itself.

Rough Crocolisk Scale

NPC	Level	Zone	Chance
Deviate Crocolisk	18 - 19	Wailing Caverns	74.9%
Large Loch Crocolisk Rare	22	Loch Modan	40.0%
Loch Crocolisk	14 - 15	Loch Modan	32.0%