Harpocrates on the frog-goddess Heqat appears on two terracottas in the Fouquet collection, cf. P. Perdrizet, Les Terres Cuites Grecques d'Égypte de la Collection Fouquet, Nancy-Paris-Strasbourg, 1921, pl. XXIX, p. 35, no. 107, and p. 135, no. 360. Heqat presided at the birth of the world and at the birth of each child. The large phallus and the reproductive feats of frogs suggest this was a fertility ex-voto. Cf. H. Philipp, Terrakotten aus Ägypten, Berlin, 1972, no. 24, pl. 22, where he is called Ptaichos and see bibliography for other images of frogs in Egyptian mythology.