The Octopodidae comprise the family containing the majority of known octopus species.
Enteroctopus is an octopus genus whose members are sometimes known as giant octopus.
Bathypolypus is a genus of octopuses in the monotypic family Bathypolypodidae. It has five described species.
Teretoctopus is a genus of octopuses in the family Octopodidae.
Pareledone is a genus of octopuses in the family Megaleledonidae.
Thaumeledone is a genus of octopuses in the family Octopodidae found in deep waters in the Southern Hemisphere.
Abdopus is a genus of octopuses in the family Octopodidae.
Robsonella is a small genus of octopuses in the family Octopodidae. It contains two described species. Robsonella octopuses can be found on the central-south coast of Chile. If an octopus’ first lateral tooth in the radula is crescent shaped; this allows you to identify it as a Robsonella fontaniana. One species in the genus, Robsonella fontaniana, inhabit the coastal waters of Chile and range from northern Peru to Golfo Nuevo in Argentina. Robsonella fontaniana are very small, have rugged skin and each eye has a fleshy expansion.
Scaeurgus is a genus of octopuses in the family Octopodidae. The species of this genus are characterized by inhabiting the upper bathyal benthic zone from temperate and tropical latitudes in all major oceans.
Amphioctopus is a genus of octopuses comprising around 16 species.
Aggregata is a genus of parasitic alveolates belonging to the phylum Apicomplexa.
Muusoctopus is a cosmopolitan genus of deep-sea octopus from the family Enteroctopodidae. These are small to medium-sized octopuses which lack an ink sac. Recent work has suggested that these octopuses originated in the North Atlantic and subsequently moved into the North Pacific while the species in the Southern Hemisphere are descended from multiple invasions from northern oceans.
Sasakiopus is a genus of octopus containing only one species, Sasakiopus salebrosus, the rough octopus. It is part of the family Enteroctopodidae. Genetic analysis appeared to show that S. salebrosus is the sister taxon of the genera Benthoctopus and Vulcanoctopus, although the former is now considered a synonym of Bathypolypus, the only genus in the family Bathypolypodidae, and the latter as a synonym of Muusoctopus.
Galeoctopus lateralis, the sharkclub octopus, is a species of octopus, from the family Octopodidae. This species was described in 2004 from specimens collected at depths of 200–400 m in the southern and western Pacific Ocean. It is a small octopus in which the mature male's have a distinctive ligula which superficially resembles a shark's jaw and head including teeth‐like lugs. Other distinguishing characteristics include a lateral mantle ridge, a skin sculpture which includes star-shaped papillae, and the females have oviducts with hare distally swollen.
Macrochlaena winckworthi, Winckworth's octopus, is a little known species of octopus, it is the only species in the monotypic genus Macrochlaena, in the family Octopodidae. It was described by the British malacologist Guy Coburn Robson in 1926, the type specimens having been collected in the Gulf of Mannar, off Thoothukudi in Tamil Nadu, southeastern India.
Macrotritopus is a poorly known genus of octopuses in the family Octopodidae. As it stands, Macrotritopus contains one valid described species, Macrotritopus defilippi. Two poorly described, unresolved taxa which are known only from planktonic hatchlings have been tentively assigned Macrotritopus equivocus and M. scorpio, as well as a further three undescribed Indo-Pacific species. Macrotritopus was originally described from a single juvenile specimen which was named Macrotritopus equivocus notable for having an elongated third arm. This specimen gave the name Macrotritopus larva to this form of paralarva which was misidentified as the newly hatched juveniles of Scaeurgus unicirrhus. When the eggs of M. defilippi, which were kept in captivity, hatched and the resultant larvae were observed to be of the Macrotritopus larval type then the juveniles were connected with the adults. This means that the type species of Macrotritopus is a juvenile and that M. defillipi is the only species where the adult form is known. The presence of Macrotritopus larvae” off South Africa and the Indo‑West Pacific from Australia to Hawaii indicates that there may be a number of yet to be described species within this genus.
Paroctopus is a small genus of octopuses from the family Octopodidae.
Octopus oliveri, is a species of octopus found in the western Pacific Ocean off the coast of Japan, Hawaii, and Kermadec Island, in reefs and boulder coasts.
Octopus insularis is a species of octopus found off the coast of Brazil.
Opisthoteuthis dongshaensis is a species of octopus located in the South China Sea.
