Hooked squid

The hooked squid, family Onychoteuthidae, currently comprise about 20–25 species (several known from only single life stages and thus unconfirmed), in six or seven genera. They range in mature mantle length from to a suggested length of for the largest member, Onykia robusta. The family is characterised by the presence of hooks only on the tentacular clubs, a simple, straight, funnel–mantle locking apparatus, and a 'step' inside the jaw angle of the lower beak. With the exception of the Arctic Ocean, the family is found worldwide.

Species

• Genus Onychoteuthis <small>Lichtenstein, 1818</small>
• Onychoteuthis banksii <small>(Leach, 1817)</small> – common clubhook squid
• Onychoteuthis bergii* <small>Lichtenstein, 1818</small>
• Onychoteuthis mollis* <small>Appelloef, 1891</small>
• Onychoteuthis compacta <small>Berry, 1913</small>
• Onychoteuthis borealijaponica <small>Okada, 1927</small> – boreal clubhook squid
• Onychoteuthis meridiopacifica <small>Rancurel & Okutani, 1990</small>
• Onychoteuthis lacrima <small>Bolstad & Seki in Bolstad, 2008</small>
• Onychoteuthis prolata <small>Bolstad, Vecchione & Young in Bolstad, 2008</small>
• Onychoteuthis horstkottei <small>Bolstad, 2010</small>
• Genus Onykia <small>Lesueur, 1821 </small> (includes most species previously placed in Moroteuthis)
• Subgenus Onykia
• Onykia carriboea <small>Lesueur, 1821</small> – tropical clubhook squid
• Onykia robusta <small>(Verrill, 1876)</small> – robust clubhook squid
• Onykia loennbergii <small>(Ishikawa & Wakiya, 1914)</small> – Japanese hooked squid
• Onykia aequatorialis* <small>Thiele, 1920</small>
• Onykia robsoni <small>(Adam, 1962)</small> – rugose hooked squid
• Onykia indica* <small>Okutani, 1981</small>
• incertae sedis
• ?Onykia appelloefi* <small>Pfeffer, 1900</small>
• Genus Ancistroteuthis <small>Gray, 1849</small>
• Ancistroteuthis lichtensteinii <small>(Ferussac, 1835)</small> – angel clubhook squid or angel squid
• Genus Moroteuthopsis <small>Pfeffer, 1908</small>
• Moroteuthopsis ingens <small>(Smith, 1881)</small> – greater hooked squid
• Moroteuthopsis longimana <small>Filippova, 1972</small>
• Genus Notonykia <small>Nesis, Roeleveld & Nikitina, 1998</small>
• Notonykia africanae <small>Nesis, Roeleveld & Nikitina, 1998</small>
• Notonykia nesisi <small>Bolstad, 2007</small>
• Genus Filippovia <small>Bolstad, 2010</small>
• Filippovia knipovitchi <small>(Filippova, 1972)</small> – smooth hooked squid
• Genus Walvisteuthis <small>Nesis & Nikitina, 1986</small>
• Walvisteuthis jeremiahi <small>Vecchione, Sosnowski & Young, 2015</small>
• Walvisteuthis rancureli <small>(Okutani, 1981)</small>
• Walvisteuthis virilis <small>Nesis & Nikitina, 1986</small>
• Walvisteuthis youngorum <small>(Bolstad, 2010)</small>

(*) indicates taxa requiring further taxonomic investigation

References

• Bolstad, K.S.R. 2008. Systematics of the Onychoteuthidae Gray, 1847 (Cephalopoda: Oegopsida) . Doctoral thesis.
• Bolstad, K.S.R. 2010. Systematics of the Onychoteuthidae Gray, 1847 (Cephalopoda: Oegopsida). Zootaxa 2696: 1–186. Preview

External links

• Tree of Life: Onychoteuthidae

• Onychoteuthidae discussion forum at TONMO.com
• Laptikhovsky, V.; Arkhipkin, A.; Bolstad, K.S. 2008. A second species of the squid genus Kondakovia (Cephalopoda: Onychoteuthidae) from the sub-Antarctic.