''Acanthotetilla celebensis'' is a species of sea sponge belonging to the family

Tetillidae Tetillidae is a family of marine sponges. Tetillids are more or less spherical sponges (sometimes referred to as golf ball sponges) which are found commonly in all marine habitats at all depths throughout the world. They are especially common in ...

. It is only known from a single specimen collected at a depth of 14 m off Bunaken Island, north

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

, Indonesia. This firm yellow sponge] is roughly hemispherical and around 12 cm across. Like other species of the genus ''

Acanthotetilla ''Acanthotetilla'' is a genus of demosponges belonging to the family Tetillidae Tetillidae is a family of marine sponges. Tetillids are more or less spherical sponges (sometimes referred to as golf ball sponges) which are found commonly in all ...

'', it is characterized by the presence of distinctive spiny spicules called "megacanthoxeas". This sponge, however, differs from the other described species in that the megacanthoxeas exist in two distinctly different sizes as opposed to being uniform in size.

References

* Animals described in 2007 Spirophorida {{demosponge-stub