Bythotiara dolioeques

Author: Raskoff and Robison, 2005

Description

General: Medusa contains four simple, unbranched radial canals that connect to the ring canal. Bell has a wide velum. Manubrium is half to two-thirds bell height with a cross-shaped mouth. Four highly contractile tentacles are swollen and pigmented at base where they attach to the bell. Exhibits mutualistic symbiosis with pelagic tunicate Doliolula equus with hydroid polyps occurring on the doliolid's buccal siphon. Hydroid polyps are singular and unbranched with root-like hydrorhiza. Autonomous tentacles may also adhere to doliolid host.

Size: Hydroid polyps to 12 mm in height. Medusae to 4.6 mm diameter.

Reproduction: Hydroid polyps bud one to three medusae at a time. Medusae are released when approximately 2 mm in diameter.

Geographic Information

Habitat description: Mesopelagic, occurring on the pelagic tunicate Doliolula equus.

Published depth range: 78 - 2,843 m

Additional Information

References

Encyclopedia of Life

Tree of Life

World Register of Marine Species

National Center for Biotechnology Information

Raskoff, K.A. and B.H. Robison (2005). A novel mutualistic relationship between a doliolid and a cnidarian, Bythotiara dolioeques sp. Journal of the Marine Biological Association of the United Kingdom, 85: 583-593. http://dx.doi.org/10.1017/S0025315405011513

Media

Phylogenetic Image Gallery

Data Products

Annotated Images

Citation: Bythotiara dolioeques (Raskoff and Robison, 2005) Deep-Sea Guide (DSG) at http://dsg/mbari.org/dsg/view/concept/Bythotiara%20dolioeques. Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2024-11-22.

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Bythotiara dolioeques Author: Raskoff and Robison, 2005 MBARI 2014: D666-10 Click here for a larger image. MBARI 2007: T1087-07 Click here for a larger image. MBARI 2014: D666-10 Click here for a larger image. Taxonomy: Eukaryota (superkingdom) Animalia (kingdom) Cnidaria (phylum) Hydrozoa (superclass) Hydroidolina (subclass) Anthoathecata (order) Filifera (suborder) Bythotiaridae (family) Bythotiara (genus) Bythotiara dolioeques (species) Description General: Medusa contains four simple, unbranched radial canals that connect to the ring canal. Bell has a wide velum. Manubrium is half to two-thirds bell height with a cross-shaped mouth. Four highly contractile tentacles are swollen and pigmented at base where they attach to the bell. Exhibits mutualistic symbiosis with pelagic tunicate Doliolula equus with hydroid polyps occurring on the doliolid's buccal siphon. Hydroid polyps are singular and unbranched with root-like hydrorhiza. Autonomous tentacles may also adhere to doliolid host. Size: Hydroid polyps to 12 mm in height. Medusae to 4.6 mm diameter. Reproduction: Hydroid polyps bud one to three medusae at a time. Medusae are released when approximately 2 mm in diameter. Geographic Information Habitat description: Mesopelagic, occurring on the pelagic tunicate Doliolula equus. Published depth range: 78 - 2,843 m Additional Information References Encyclopedia of Life Tree of Life World Register of Marine Species National Center for Biotechnology Information Raskoff, K.A. and B.H. Robison (2005). A novel mutualistic relationship between a doliolid and a cnidarian, Bythotiara dolioeques sp. Journal of the Marine Biological Association of the United Kingdom, 85: 583-593. http://dx.doi.org/10.1017/S0025315405011513 Media Phylogenetic Image Gallery Data Products Annotated Images Citation: Bythotiara dolioeques (Raskoff and Robison, 2005) Deep-Sea Guide (DSG) at http://dsg/mbari.org/dsg/view/concept/Bythotiara%20dolioeques. Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2024-11-22.
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