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Reef squids
アオリイカ-Sepioteuthis lessoniana.jpg
Sepioteuthis lessoniana
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Teuthida
Suborder: Myopsina
Family: Loliginidae
Genus: Sepioteuthis
Blainville, 1824

See text

Sepioteuthis, commonly known as reef squids or oval squids, is a genus of pencil squid. Reef squids are easily recognizable by their large rounded fins that extend along almost the entire length of their mantles, giving them a superficial resemblance to cuttlefish.[1]


Three species are currently recognized,[2] though S. australis and S. lessoniana are believed to be cryptic species complexes.[3]

An additional species, S. loliginiformis, was described in 1828, but its validity is questionable. However, if the species turns out to be the same as S. australis or S. lessoniana, S. loliginiformis would be the senior synonym and replace the younger name currently in use.


  1. ^ Michael Vecchione & Richard E. Young (2010). "Sepioteuthis Blainville, 1824. Reef squids". The Tree of Life Web Project. Retrieved October 16, 2011. 
  2. ^ M. Vecchione; E. Shea; S. Bussarawit; F. Anderson; D. Alexeyev; C.-C. Lu; T. Okutani; M. Roeleveld; C. Chotiyaputta; C. Roper; E. Jorgensen & N. Sukramongkol (2005). "Systematics of Indo-West Pacific Loliginids" (PDF). Phuket Marine Biological Center Research Bulletin. Phuket Marine Biological Center. 66: 23–26. ISSN 0858-1088. Retrieved August 13, 2011. 
  3. ^ Lianos Triantafillos & Mark Adams (2005). "Genetic evidence that the northern calamary, Sepioteuthis lessoniana, is a species complex in Australian waters" (PDF). ICES Journal of Marine Science. International Council for the Exploration of the Sea, Elsevier. 62: 1665–1670. doi:10.1016/j.icesjms.2005.06.004. ISSN 1054-3139. Retrieved August 17, 2011. 

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