Black and green sponge with sprawling or upright, thick, ramose branches with a conulose surface. Small encrusting specimens often wholly or partly smooth.

- Brown tube sponge Agelas conifera

Size: Length of the branches up to 50 cm, diameter 1-5 cm. 
Colour: Black, mottled with longitudinal light green patches. Occasionally entirely greenish-yellow.
Shape: Usually has upright or sprawling cylindrical branches that occasionally divide. 
Consistency: Compressible but tough.

Inhabits coral reefs. Known from reefs, undersides of stones in shallow bays and from deeper water beyond the reefs. Frequently covered with winding chains of Golden zoanthids (Parazoanthus swiftii ).

 BES-eilanden: Bonaire, St. Eustatius.

[Marion Haarsma, march 2016]

- Humann, P., & DeLoach, N. (2002). Reef Creature Identification: Florida, Caribbean, Bahamas (p. 420). Jacksonville (FL): New World Publications.
-  Interactive Guide to Caribbean Diving. M. De Kluijver, G. Gijswijt, R. de Leon & I. da Cunda.
- The Sponge Guide. S. Zea, Henkel, T.P., and Pawlik, J.R. 2014.

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