Idiosepius paradoxus
Idiosepius paradoxus, also known as the northern pygmy squid, is a species of bobtail squid native to the western Pacific Ocean, including the waters off South Korea, northern Australia, as well as the Japanese islands of Honshu, Kyushu, and southern Hokkaidō. It inhabits shallow, inshore waters.[2]
| Idiosepius paradoxus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Family: | Idiosepiidae |
| Genus: | Idiosepius |
| Species: | I. paradoxus |
| Binomial name | |
| Idiosepius paradoxus (Ortmann, 1888) | |
| Synonyms | |
| |
Description
I. paradoxus grows to 16 mm (0.63 in) in mantle length.[2]
The type specimen was collected off Kadsiyama in Tokyo Bay. It is deposited at the Musee Zoologique in Strasbourg.[3]
Distribution and habitat
The squid is found in the demersal zone in subtropical climates. It resides in algae,[2] seagrass, and seaweed.[4]
References
- Barratt, I.; Allcock, L. (2012). "Idiosepius paradoxus". IUCN Red List of Threatened Species. 2012: e.T162657A937941. doi:10.2305/IUCN.UK.2012-1.RLTS.T162657A937941.en. Retrieved 19 November 2021.
- Reid, A. 2005. Family Idiosepiidae. In: P. Jereb & C.F.E. Roper, eds. Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 208–210.
- Current Classification of Recent Cephalopoda
- Palomares ML, Pauly D, eds. (2022). "Idiosepius paradoxus" in SeaLifeBase. April 2022 version.
Further reading
- Kasugai, T. 2001. "Feeding behaviour of the Japanese pygmy cuttlefish Idiosepius paradoxus (Cephalopoda: Idiosepiidae) in captivity: evidence for external digestion" (PDF). Archived from the original (PDF) on 2005-12-14. (400 KiB) J. Mar. Biol. Assoc. U. K. 81: 979–981.
- Kasugai, T. & Y. Ikeda 2003. "Description of the egg mass of the pygmy cuttlefish, Idiosepius paradoxus (Cephalopoda: Idiosepiidae), with special reference to its multiple gelatinous layers" (PDF). Archived from the original (PDF) on 2004-03-28. (1.47 MiB) Veliger (Calif. Malacozoological Soc. Inc., Santa Barbara) 46(2): 105–110.
- (in Japanese) Natsukari, Y. 1970. Egg-laying behavior, embryonic development and hatched larva of the pygmy cuttlefish Idiosepius pygmaeus paradoxus Ortmann. Bulletin of the Faculty of Fisheries, Nagasaki University 30: 15–29.
- Shigeno, S. & M. Yamamoto 2002. "Organization of the nervous system in the Pygmy Cuttlefish, Idiosepius paradoxus Ortmann (Idiosepiidae, Cephalopoda)" (PDF). Archived from the original (PDF) on 2005-12-16. (3.87 MiB) Journal of Morphology 254: 65–80.
- Yamamoto, M. 1988. Normal embryonic stages of the pygmy cuttlefish, Idiosepius pygmaeus paradoxus Ortmann. Zoological Science 5(5): 989–998.
- Yamamoto, M., Y. Shimazaki & S. Shigeno 2003. "Atlas of the embryonic brain in the pygmy squid, Idiosepius paradoxus" (PDF). Archived from the original (PDF) on 2004-03-28. (1.92 MiB) Zoological Science (Zoological Society of Japan) 20: 163–179.
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