> [!summary]- Classification **Kingdom**:: [Animalia](Animalia.md) **Phylum**:: [Porifera](Porifera) **Subphylum**:: **Superclass**:: **Class**:: Demospongiae **Subclass**:: **Superorder**:: **Order**:: Chondrillida **Suborder**:: **Superfamily**:: **Family**:: Halisarcidae **Subfamily**:: **Genus**:: Halisarca **Species**:: H. caerulea **Vernacular**:: Star encrusting sponge ## Photos  *[113 - 2023-02-28 - La Perle - Saint Pierre - Martinique](113%20-%202023-02-28%20-%20La%20Perle%20-%20Saint%20Pierre%20-%20Martinique.md)*  *[113 - 2023-02-28 - La Perle - Saint Pierre - Martinique](113%20-%202023-02-28%20-%20La%20Perle%20-%20Saint%20Pierre%20-%20Martinique.md) - In duo with [Orbicella annularis - Boulder star coral](Orbicella%20annularis%20-%20Boulder%20star%20coral.md)* ## Notes I first thought about a coral, but it's not. We can see the osculums at the center of the cross, but they're about 3mm in diameter. ## References - https://en.wikipedia.org/wiki/Halisarca_caerulea - https://bioobs.fr/blog/fiche-espece/?id_espece=2708 (fr) - https://doris.ffessm.fr/Especes/Eponge-etoilee-bleue3/(rOffset)/0 (uncomplete, fr)