We no longer ascribe the term 'mermaid' to those we deem sexually or economically threatening; we do not ubiquitously use the mermaid's image in political propaganda or feature her within our houses of worship; perhaps most notably, we do not entertain the possibility of the mermaid's existence. This, author Tara Pedersen argues, makes it difficult for contemporary scholars to consider the mermaid as a figure who wields much social significance. During the early modern period, however, this was not the case, and Pedersen illustrates the complicated category distinctions that the mermaid...