sentences:  A "ningyo" might be counted as a "yōkai" since it is included in Toriyama Sekien's "Hyakki Yagyō" series.A particular gender is not clear here, as it is only given as a being with "a human face, a fish body", and Sekien equates the "nigyo" to the Di peiople or , which are described in the "Classic of Mountains and Seas" and translated as the "Low People".A famous "ningyo" legend concerns the who is said to have partaken of the flesh of a merfolk and attained miraculous longevity and lived for centuries.