Cephalopod size
Total length
The longest scientifically documented specimens belong to the giant squid, with a maximum total length of 14–15 m (46–49 ft) (Roper & Shea, 2013:114).

Cephalopod size

Section Title: Total length
Table Section Text: The longest scientifically documented specimens belong to the giant squid, with a maximum total length of 14–15 m (46–49 ft) (Roper & Shea, 2013:114).

Teuthida (squids)

Species	Maximum total length	References	Notes

Architeuthis dux (giant squid)	14–15 m (female)	Roper & Shea (2013:114)	Based on a 40-year data set of more than 50 specimens, Roper & Shea (2013:114) suggest an average total length at maturity of 11 m and a "rarely encountered maximum length" of 14–15 m.

Mesonychoteuthis hamiltoni (colossal squid)	approaching 9–10 m (estimate)	Roper & Jereb (2010c:173)	The maximum confirmed total length for this species is 6 m (Rosa et al., 2017). Two specimens of M.

cf. Magnapinna (bigfin squid)	≈7 m (estimate)	Vecchione et al. (2001a:2505); Vecchione et al. (2001b); Glaubrecht & Salcedo-Vargas (2004:67); Roper & Jereb (2010f:247)	Estimate based on specimen observed by commercial ROV operated from the oil-drilling ship Millennium Explorer in January 2000, Mississippi Canyon, Gulf of Mexico (28°37′N 88°0′W / 28.617°N 88.000°W), at a depth of 2195 m (Vecchione et al., 2001b).

Asperoteuthis acanthoderma	5.5 m (+)	Tsuchiya & Okutani (1993)	Total length of immature specimen measuring 0.45 m ML. Much larger specimens of up to 92 cm ML are known (see Kubodera & Horikawa, 2005:223 for photograph).

Onykia robusta (robust clubhook squid)	4.3 m (14 ft) (+)	Verrill (1876:237)	Total length of specimen missing ends of tentacles, with a mantle length of 2.32 m (91.5 in) according to Verrill (1876:237).

Galiteuthis phyllura	? over 4 m (estimate)	Nesis (1985); Ellis (1998a:149); Glaubrecht & Salcedo-Vargas (2004:65)	Estimate based on 0.40 m long arm and 1.15 m tentacle from the Sea of Okhotsk. Roper & Jereb (2010c:165) cast doubt on the validity of this record.

Dosidicus gigas (Humboldt squid)	possibly up to 3.7 m (12 ft)	Clarke (1966:117); Glaubrecht & Salcedo-Vargas (2004:59)	Specimens from the northern hemisphere are much smaller, with those off the Californian coast reaching total lengths of less than 1.7 m (Glaubrecht & Salcedo-Vargas, 2004:59).

Megalocranchia maxima	2.7 m (+) (female)	Young & Mangold (2010)	Total length of 1.65 m ML female taken off Hawaii (see Young & Mangold, 2010 for photograph). Larger specimens of up to 1.85 m ML have been recorded, and these clearly exceed 2.7 m TL (see Kubodera & Horikawa, 2005:223 for photograph).

Taningia danae (Dana octopus squid)	2.3 m (female)	Roper & Vecchione (1993:444)	Total length of mature female measuring 160 cm in mantle length, taken from frozen specimen.

Kondakovia longimana (giant warty squid)	2.25 m (+)	Lynnes & Rodhouse (2002:1087)	Size of largest complete specimen (1.08 m ML), found floating at surface off South Orkney Islands (see also Carrington, 2000). Much larger specimens up to an estimated 1.5 m ML are known (Bolstad, 2008:171).

Ommastrephes bartramii (neon flying squid)	2 m	Glaubrecht & Salcedo-Vargas (2004:62)

Octopoda (octopuses)

Species	Maximum total length	References	Notes

Enteroctopus dofleini (giant Pacific octopus)	>6.1 m	Cosgrove (1987)	Norman et al. (2014:124) give the maximum total length as "more than 3 m".

Cirrina gen. et sp. indet.	over 4 m (estimate)	Voss (1988); Vecchione et al. (2008)	Estimate based on photographic record; finned octopods are known with certainty to reach at least 1.7 m in total length (Collins et al., 2001).

Haliphron atlanticus (seven-arm octopus)	4 m (estimate; female)	O'Shea (2004a:9); Finn (2014a:227)	Estimate based on incomplete 2.90 m mature female, measured defrosted and wet, prior to fixing. Isolated beaks of comparable size to that of this specimen were recorded by Clarke (1986:247–248).

Vampyromorphida (vampire squid) – single extant species

Species	Maximum total length	References	Notes

Vampyroteuthis infernalis (vampire squid)	≈30 cm	Norman & Finn (2014:269)

Sentence(s)

Cephalopod size has a total length, which was possibly up to 3.7 m (12 ft) (Clarke, 1966:117; Glaubrecht & Salcedo-Vargas, 2004:59).

final_sentence: Cephalopod size has a total length, which was possibly up to 3.7 m (12 ft) (Clarke, 1966:117; Glaubrecht & Salcedo-Vargas, 2004:59).