According to Pindar, a goddess attempted to imitate the sound of two of these beings (-5[1])crying by inventing the aulos flute. (-5[1])Two drops of blood from these beings (10[1])were gifted to either Erichthonius (10[1])or (-5[1])Asclepius (10[2])for use (10[1])as (-5[1])a (10[1])panacea. (10[2]-5[3])The death of one of these (10[3]-5[1])beings spilled blood (10[1]-5[2])that mixed (10[1])with (-5[1])sand (10[1])to create (-5[1])the viper that killed (10[1])the (10[2]-5[2])Argonaut (10[1]-5[1])Mopsus (10[5]-5[3])and created (10[1])a warrior (10[1]-5[1])named (10[1])for being (10[1])born with a golden sword. (10[9]-5[1])Ceto (10[4]-5[1])mothered (10[4]-5[1])two (10[1])immortal (10[1])examples (10[3]-5[3])of these beings named (10[1])Stheno (10[6])and (10[4])Euryale. (10[10]-5[1])The head (10[2])of the (10[4])only mortal (10[3])one of (10[1])these (10[1])sisters (10[4])is placed (10[2])on the (10[1])aegis (10[5])by (10[1])Athena (10[4])after (10[1])Chrysaor (10[6])and Pegasus are born from her beheading (10[1]-5[1])by Perseus. (10[1])For 10 points, (10[1])what (10[1])snake-haired sisters from Greek myth (10[1])include (10[1])Medusa? (10[3])■END■ (10[13])