SUPERFAMILY CHIROTEUTHOIDEA GRAY, 1849 (41 SPECIES) Diagnosis: Ammoniacal and weakly muscled Oegopsida with a secondary adult tentacular club but with primary tentacle club in early stages, with protective membranes on clubs symmetrical or subsymmetrical, without carpal locking apparatus, without keel, without terminal pad; buccal connectives attach ventrally to ventral arms; funnel–mantle locking apparatus usually oval, although sometimes modified by projections (tragus and/or antitragus), reaching the anterior margin of the mantle; fins usually terminal; often with a long tail supported by the secondary conus of the gladius during some stages of development. Remarks: Tragus and antitragus refer to two protruding knobs found in the funnel–mantle locking apparatus of some Chiroteuthoidea; see Young & Vecchione (2019c) for more information. Adults of the paedomorphic genus Planctoteuthis Pfeffer, 1912 retain the primary club; hence, the morphological characters related to the tentacle morphology in this diagnosis do not apply to this genus. The funnel–mantle locking apparatus of Grimalditeuthis bonplandi (Vérany, 1839) is fused.

Published as part of Fernández-Álvarez, Fernando Á, Taite, Morag, Vecchione, Michael, Villanueva, Roger & Allcock, A Louise, 2022, A phylogenomic look into the systematics of oceanic squids (order Oegopsida), pp. 1212-1235 in Zoological Journal of the Linnean Society 194 (4) on page 1226, DOI: 10.1093/zoolinnean/zlab069, http://zenodo.org/record/6457115