Murtlap

The Murtlap is a ratlike creature found along Britain’s coasts, best known for the unusual growth on its back: prepared as a pickle and eaten, it can promote resistance to curses and jinxes, with an overdose bringing an emphatically less welcome side effect. The creature’s entry turns a small coastal animal into a practical, if unpredictable, resource in the wizarding world.

Identity and Habitat

The Murtlap is described as ratlike and associated specifically with coastal areas of Britain. Its defining physical feature is a growth resembling a sea anemone, set on its back. The catalogue identifies the creature through this combination of familiar animal form and marine-looking appendage rather than through elaborate description.

Uses and Risks

When pickled and eaten, the Murtlap’s back growth promotes resistance to curses and jinxes. The benefit is qualified by a clear warning: an overdose may cause unsightly purple hair to grow from the ears. The entry thus presents the Murtlap as both a source of magical protection and a substance whose use requires restraint; its practical value comes with a bodily consequence rather than an unreserved cure.

Place in the Catalogue

The Murtlap appears as one of the creatures documented in Fantastic Beasts and Where to Find Them, whose catalogue form places magical beings within a framework of description and practical knowledge. Its compact entry makes the creature’s habitat, identifying feature, use, and risk legible together: even an animal encountered on Britain’s coasts may yield a useful defence, but not without limits.