Mermaid reports from the 1790s
1 case, best-documented first. Page 1 of 1.
We map claims, not creatures. A case is what some source says someone saw or heard, with the link to that source. It is not proof that anything was there, and a retelling counts once, not as a second sighting.

Mermaid · Thurso, Alba / Scotland · 1798
[name] reports seeing a naked woman combing her hair on a rock before she dived into the water and vanished.