The most prominent Minoan goddess held these creatures in both hands. Alongside a baby, seeing one of these creatures made Herse, Pandrosos, and Aglauros go mad after Athena gave Erichthonius to them in a basket. Before death, Cadmus becomes one of these creatures, and another killed of the newlywed Eurydice after she tripped. Athens's king Cecrops has the lower half of these creatures, and Tiresias switched genders upon 
The most prominent Minoan goddess held these creatures in both hands. Alongside a baby, seeing one of these creatures made Herse, Pandrosos, and Aglauros go mad after Athena gave Erichthonius to them in a basket. Before death, Cadmus becomes one of these creatures, and another killed of the newlywed Eurydice after she tripped. Athens's king Cecrops has the lower half of these creatures, and Tiresias switched genders upon hitting a pair of them. As an infant, Heracles strangles two with his baby hands, and two others surround the caduceus staff borne by Hermes. The Chimera's tail is one of, for 10 points, what creatures which make up the Gorgon Medusa's hair?
The most prominent Minoan goddess held these creatures in both hands.
snakes [or serpents; do not accept "dragons" since these are all unambiguously common snakes]