Metacrinus rotundus
Metacrinus rotundus | |
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Scientific classification | |
Kingdom: | |
Phylum: | Echinodermata |
Class: | Crinoidea |
Subclass: | |
Family: | |
Genus: | |
Species: | M. rotundus
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Binomial name | |
Metacrinus rotundus Carpenter, 1885 [1]
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Metacrinus rotundus, the Japanese sea lily, is a
. It is a species found off the west coast of Japan, and is living near the edge of the continental shelf, around 100–150m deep. This is the shallowest species among the extant stalked crinoids.Description
In appearance, the Japanese sea lily resembles a
Distribution and habitat
The Japanese sea lily occurs off the western coast of Japan. It is usually found within the depth range 100 to 150 metres (330 to 490 ft).[4] Abundant collection records are available from Sagami Bay and Suruga Bay. It is found attached by its stem to rocks, shells and other hard surfaces, using its cirri to anchor itself into position. It can move across the seabed using its arms but seldom does so.[2]
Biology
The Japanese sea lily is a filter feeder. It extends its arms towards the current, spreads its pinnules and gathers plankton and other particles floating past. These are transferred into the groove by its tube feet, wrapped in mucus and moved along the groove by the cilia that line it.[2]
If the Japanese sea lily is damaged, it can regenerate its arms and even the whole crown can be regenerated above the stalk.[5] In favorable locations, there may be a dense bed of sea lilies and it may form part of a rich micro-habitat with bivalve mollusks and brittle stars.[2]
Like other sea lilies,
References
- ^ Messing, Charles (2012). "Metacrinus rotundus Linnaeus, 11758". WoRMS. World Register of Marine Species. Retrieved 2012-11-16.
- ^ a b c d Hunter, Aaron. "Metacrinus rotundus (Japanese sea lily)". Natural History Museum. Retrieved 2012-11-16.
- ISBN 0-03-056747-5.
- ^ Oji, T. and Kitazawa, K., 2006. Distribution of stalked crinoids (Echinodermata) from waters off the southern coasts of Japan. Memoir of the National Science Museum, Tokyo 41: 217-222.
- ^ Amemiya, S. and Oji, T.: Regeneration in sea lilies. Nature 357 (1992) 546-547.
- ^ Amemiya, S., Omori, A., Tsurugaya, T., Hibino, T., Yamaguchi, M., Kuraishi, R., Kiyomoto, M. and Minokawa, T. 2016. Early stalked stages in ontogeny of the living isocrinid sea lily Metacrinus rotundus. Acta Zoologica, 97: 102-116. DOI: 10.1111/azo.12109