> [!summary]- Classification **Kingdom**:: Animals **Phylum**:: Porifera **Subphylum**:: **Superclass**:: **Class**:: Demospongiae **Subclass**:: **Superorder**:: **Order**:: Chondrillida **Suborder**:: **Superfamily**:: **Family**:: Chondrosiidae **Subfamily**:: **Genus**:: Chondrosia **Species**:: C. reniformis **Vernacular**:: Kidney sponge ## Photos ![https://res.cloudinary.com/dt3d6t2ay/image/upload/v1693166753/obsidian/Mediterran%C3%A9e/2023-04-29%20-%20Sec%20d%27Alon%20et%20Grottes%20fauconi%C3%A8res/P4290606_okaa0d.jpg](https://res.cloudinary.com/dt3d6t2ay/image/upload/v1693166753/obsidian/Mediterran%C3%A9e/2023-04-29%20-%20Sec%20d%27Alon%20et%20Grottes%20fauconi%C3%A8res/P4290606_okaa0d.jpg) *[118 - 2023-04-29 - Grottes fauconières - Saint Cyr - France](118%20-%202023-04-29%20-%20Grottes%20fauconières%20-%20Saint%20Cyr%20-%20France.md) - This isn't the most common color. It usualy appear mostly like leather color, but in caves, it's usualy white. I don't know if the presence/absence of light trigger this, but it may not be a too silly hypothesis.* ## Notes ## References - https://doris.ffessm.fr/Especes/Chondrosia-reniformis-Eponge-rognon-314/(rOffset)/0 - [Découvrir la vie sous-marine - Méditerranée - Steven Weinberg](Découvrir%20la%20vie%20sous-marine%20-%20Méditerranée%20-%20Steven%20Weinberg.md) p134