Tethyida is an order of sea sponges in the subclass Heteroscleromorpha.

Tethyida. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Tethyida.

Tethyidae is a family of sea sponges belonging to the order Tethyida.

Tethyidae. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Tethyidae.