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Manual of the New Zealand mollusca, Wellington, N. Z, J. Mackay, govt. printer, 1913-1915, New Zealand, mollusks, Architeuthus verrilli, Onychoteuthis banksi, Calliteuthis reversa, NZ species, Ommastrephis sagittatus, The illustration features an assortment of squids, showcasing their distinct anatomical structures. The uppermost specimen displays an elongated body with intricately designed arms and a prominent mantle. Below it, another squid appears, characterized by a more streamlined shape and elongated fins. The lower section presents two additional squids, each exhibiting unique features such as varying body shapes and tentacle arrangements. This detailed representation highlights the diversity of cephalopod morphology, emphasizing their adaptations for movement and hunting in aquatic environments. (Photo by: Sepia Times/Universal Images Group via Getty Images)