Acanthosepion lycidas, commonly known as the kisslip cuttlefish, is a species of cuttlefish within the genus Acanthosepion. They are also classified under the family Sepiidae, which encompasses some of the most commonly known and recognized cuttlefish. Phylogenetically, this species of cuttlefish is most closely related to Acanthosepion aculeata, Acanthosepion esculenta, and Acanthosepion pharaonis. This species is typically reddish brown to purple in color, with patches and stripes present on their dorsal mantle. On average, they grow to be about 38 cm in length and weigh 5 kg at maximum. The kisslip cuttlefish can be found mainly within the Indo-West Pacific, at depths ranging from 15–100 meters. Additionally, this species exhibits many diverse, complex reproductive behaviors; for example, courting, mating displays, and mate competition. Other interesting behaviors includes their feeding and hunting methods, which entails turning towards a preferred direction to "jump on" and engulf their prey of small fish and crustaceans. Acanthosepion lycidas has many human uses and is important in the economy of many Southeast Asian countries, especially since they are often eaten for their high nutritional value. They are also currently being studied as an alternative source of collagen for human use, since their thick outer skin contain high levels of collagen that goes to waste when they are eaten or caught as bycatch.