Urechis unicinctus

Urechis unicinctus
Echiura in Korea1.jpg
Urechis unicinctus at a market in Korea.
Scientific classification
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U. unicinctus
Binomial name
Urechis unicinctus

Urechis unicinctus, known as the fat innkeeper worm or (Chinese) penis fish,[2][3] is a species of marine spoon worm in East Asia. It is found in Bohai Gulf of China and off the Korean and Japanese coasts.[3] It is not to be confused with a closely related species, Urechis caupo, which occurs on the western coast of North America and shares common names.[4] The body is about 10–30 cm long, cylindrical in shape and yellowish-brown in color. On the surface of the body there are many small papillae.

  1. ^ van der Land, Jacob; Murina, Galina Vansetti (2012). "Urechis unicinctus (von Drasche, 1881)". WoRMS. World Register of Marine Species. Retrieved 2012-11-12.
  2. ^ "UFE - Fibrinolytic enzyme - Urechis unicinctus (Fat innkeeper worm) - UFE gene & protein". www.uniprot.org. Retrieved 2019-12-16.
  3. ^ a b Gong, J.; Zhao, R.; Deng, J.; Zhao, Y.; Zuo, J.; Huang, L.; Jing, M. (2018). "Genetic diversity and population structure of penis fish (Urechis unicinctus) based on mitochondrial and nuclear gene markers". Mitochondrial Dna. Part A, DNA Mapping, Sequencing, and Analysis. 29 (8): 1261–1268. doi:10.1080/24701394.2018.1444039. PMID 29482423.
  4. ^ Cowles, Dave (2010). "Urechis caupo Fisher and MacGinitie, 1928". Invertebrates of the Salish Sea. Rosario Beach Marine Laboratory (a campus of Walla Walla University, Washington). Retrieved 25 January 2019.