what other forms are there of mermaids
~ Captain Ahab on Mermaid Wenches. Mermaids are super-cool species that is half-fish, half-woman. Males, which are much rarer, are called mermen. They are commonly seen in the sea or, more and more frequently, in fresh water lakes.ome people believe there are two types of mermaid-those with the top half of a woman and the bottom half of a fish, and those with the top half of a fish and the bottom half of a woman. But science has shown the alternate type to be biologically impossible.