GrayLinnorm
Explorer
After seeing threads I got inspired:
Androsphinx (Monster Manual)
Astrosphinx (MC9)
Canisphinx (Sandstorm)
Criosphinx (MM)
Crocospinx (Sandstorm)
Dracosphinx (Creature Catalog)
Gynosphinx (MM)
Hieracosphinx (MM)
Loquasphinx (Tome of Magic)
Luposphinx (Creature Catalog)
Rock Sphinx (Dangerous Denizens)
Saurosphinx (Sandstorm)
Threskisphinx (Sandstorm)
Did I get them all?
Androsphinx (Monster Manual)
Astrosphinx (MC9)
Canisphinx (Sandstorm)
Criosphinx (MM)
Crocospinx (Sandstorm)
Dracosphinx (Creature Catalog)
Gynosphinx (MM)
Hieracosphinx (MM)
Loquasphinx (Tome of Magic)
Luposphinx (Creature Catalog)
Rock Sphinx (Dangerous Denizens)
Saurosphinx (Sandstorm)
Threskisphinx (Sandstorm)
Did I get them all?