《太平广记·卷四百六十四·水族一》
阴部的形状和男人女人的一样，靠海的鳏夫寡妇大多都捉海人鱼，放在池沼中养育。
阴形与丈夫女子无异，临海鳏寡多取得，养之于池沼。
The shape of their genitals is the same as that of men and women. Widowers and widows living by the sea generally capture mermaids and raise them in ponds.