Phorcids
In Greek mythology, the Phorcids are the children of Ceto, daughter of the Earth mother Gaea, by Phorcys a wise man of the sea. Strangely fair and foul, they include the serpentine Ladon, the monstrous Echidna and the sisterhoods of the gorgons and the Graeae.
John and Caitlin Matthews, The Element Encyclopaedia of Magical Creatures, 2013, Phorcids, p 472
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