Ascidiacea (ascidians and sessile tunicates)
- Phallusia nigra
Indo-Pacific, Atlantic, Mediterranean Sea
Habitat :
tropical
Max. size :
7.0 cm
Behavior and biology :
Solitary ascidia with black, thick and smooth tunic. The siphons are close to each other and the atrial slightly lateral. The oral tentacles are simple.
Usually associated with sheltered environments, and has a reduce number of predators.