Fictitious and Symbolic Creatures in Art, by John Vinycomb, , at sacred-texts.com
Two other varieties of the griffin family, the "Hippogriff" and the "Simoorgh" appear in the highly wrought imaginings of the poets, and may here be very briefly alluded to. They do not, however, appear in British Heraldry.
Hippogryph, or Hippogrif, the winged horse whose father was a griffin and mother a filly (Greek, hippos, a horse, and gryps, a griffin)—a symbol of love. *
Simoorgh, a sort of griffin or hippogryph, which took some of its breast feathers for Tahmura's helmet. This creature forms a very striking figure in the epic poems of Saadi and Ferdusi, the Persian poets.
Milton also makes allusion to this mythical creature:
161:* "Orlando Furioso," iv. 18, 19.