Note: There was confusion if the entire length and mantle length corresponded in Mesonychoteuthis and Onykia, and they have longer tentacles than is normally depicted. Dosidicus size is unclear and may need to be smaller (or larger?).Galiteuthis size is also speculative and may need revision (O'Shea estimated a much longer animal with different proportions). Magnapinna length is speculative and assumed the arms/tentacles were at “normal” 10 times the mantle length when estimated; entire length could theoretically be halved or doubled (if stretched). Asperoteuthis assumed tentacles 12 times longer than the mantle rather than 7; length may be significantly increased when adults are discovered.