Non-Realmsian sphinxes, and a false sphinx.
- Crocosphinx (crocodile-headed) and Threskisphinx (ibis-headed) - Sandstorm
- Loquasphinx - Tome of Magic 3.5
- Astrosphinx - Monstrous Compendium 9 (Spelljammer Appendix II); according to Dragon #244's Ecology article (page 87, in the footnotes), this is not actually a sphinx at all.
None of these have any known Realms connection at this time. --SilverTiger12 (talk) 21:01, 1 May 2021 (UTC)