| Class | Order | Family | Genus species | Images | Notes | Author | Char |
|---|---|---|---|---|---|---|---|
| Demospongiae | Homosclerophorida | Plakinidae | Plakinastrella onkodes | 2 | Cream-gray to yellow lobes with a top oscule, to high, thick-walled tubes. It may also be cushion-shaped with scattered, slightly elevated oscules. Consistency tough. There is geographic variation in megasclere spicule calthrops size, being larger and stouter in the Southern Caribbean. | (Uliczka, 1929) | cream,gray,yellow,tube,lobate,tough |
