Reference

Sally V.T. Young (1993): A Neurocranium of the Eel Genus Echelus Rafinesque, (Ophichthidae, Anguilliformes) from the Eocene of the Hampshire and London Basins, and a Review of the Genera Echelus RAFINESQUE, Rhynchorhinus WOODWARD, Eomyrus STORMS and Goslinophis BLOT – Kaupia - Darmstädter Beiträge zur Naturgeschichte – 2: 163 - 194.