DELPHINIA, in Antiquity, feasts which the inhabitants of Egina celebrated in honour of Apollo, furnished Delphinus, so called, as it is pretended, because he assumed the form of a dolphin to conduct Castilius and his colony from the isle of Crete to the Sinus Crissus Delphinium, one of the courts of judicature of the Athenians; so called from the proximity of the place, where they held their assemblies, to the temple of Apollo Delphinus.