Doliolula equus

Author: unknown


General: Individual zooids link together in a chain. Common stolon links individual zooids together. Zooids ovate, almost spherical, in shape with five girdling muscle bands and a thick tunic. Gut is U-shaped. Buccal siphon often hosts hydroids of Bythotiara dolioeques in mutualistic symbiosis.

Size: Individual zooids to 22 mm. Total colony length to 4.5 m.

Reproduction: Hermaphroditic.

Geographic Information

Habitat description: Mesopelagic.

Published depth range: 80 - 550 m, most common 300 - 400 m.

Additional Information

Color: Tunic and body wall typically transparent, with some zooids exhibiting small, irregularly shaped patches of bright orange pigment.

Looks like: Salp chain.


Encyclopedia of Life

Tree of Life

World Register of Marine Species

National Center for Biotechnology Information

Robison, B.H., K.A. Raskoff, and R.E. Sherlock (2005). Ecological substrate in midwater: Doliolula equus, a new mesopelagic tunicate. Journal of the Marine Biological Association of the United Kingdom, 85: 655-663.

Martini, S. and S.H.D. Haddock (2017). Quantification of bioluminescence from the surface to the deep sea demonstrates its predominance as an ecological trait. Scientific Reports, 7: 45750.

Citation: Doliolula equus (unknown) Deep-Sea Guide (DSG) at http://dsg/ Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2022-08-10.
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