Idiosepius paradoxus

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Idiosepius paradoxus
Conservation status
Data Deficient (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Family:	Idiosepiidae
Genus:	Idiosepius
Species:	I. paradoxus
Binomial name
Idiosepius paradoxus (Ortmann, 1888)
Synonyms
Microteuthis paradoxus Ortmann, 1888 Idiosepius pygmaeus paradoxus (Ortmann, 1888)

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 Honshū, Kyūshū, and southern Hokkaidō. It inhabits shallow, inshore waters.^[2]

I. paradoxus grows to 16 mm (0.63 in) in mantle length.^[2]

The type specimen was collected off in Tokyo Bay. It is deposited at the in Strasbourg.^[3]

References[]

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.

External links[]

• "CephBase: Idiosepius paradoxus". Archived from the original on 2005.

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