The viviparous eelpout (Zoarces viviparus), also known as the, viviparous blenny and European eelpout is an eelpout in the family Zoarcidae. It is notable for giving birth to live larvae (hence the description "mother of eels"). It is a common soup ingredient in Mediterranean countries. The bones are of greenish colour, due to a harmless pigment. Their skin is slimy and the color is variable.