Mermaid reports from the 1730s
2 cases, 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 · Worcester, Massachusetts · 1737
A ship's crew reports partaking of a mermaid in Mauritius that weighed three or four hundred weight.

Mermaid · Spain · 1737
Fishermen in Vigo report catching a five-and-a-half-foot tall merman with a goat-like head and webbed toes.