HMS Challenger was a Pearl-class corvette of the Royal Navy launched on 13 February 1858 at the Woolwich Dockyard. She served the flagship of the Australia Station between 1866 and 1870.
Enteroctopus is an octopus genus whose members are sometimes known as giant octopuses.
Octopus is the largest genus of octopuses, comprising about 100 species. These species are widespread throughout the world's oceans. Many species formerly placed in the genus Octopus are now assigned to other genera within the family. The octopus has 8 arms, averaging 20 cm (8 in) long for an adult.
Abdopus is a genus of octopuses in the family Octopodidae.
The seven-arm octopus, also known as the blob octopus or sometimes called septopus, is one of the two largest known species of octopus; the largest specimen ever discovered had an estimated total length of 3.5 m (11 ft) and mass of 75 kg (165 lb). The only other similarly large extant species is the giant Pacific octopus, Enteroctopus dofleini.
Leucosyrinx bolbodes is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Cirroteuthis muelleri, also known as the big-finned jellyhead, was the first cirrate octopus species to be scientifically described. It is closely related to the genus Cirrothauma within the family Cirroteuthidae. At present the genus contains a single recognized species restricted to the Arctic Ocean and northern basins of the Atlantic and Pacific, but other species may be present in the southern hemisphere.
Muusoctopus levis is a species of octopus in the family Enteroctopodidae. It was first described by William Evans Hoyle in 1885 in an article in the Annals and Magazine of Natural History detailing the new species of octopus found on HMS Challenger as part of the Challenger expedition; the type specimen was retrieved from the Southern Ocean. The species is found in subantarctic waters in the Southern Ocean, particularly surrounding Heard Island and Kerguelen Island, but specimens comparable to M. levis have also been found at the Antarctic Peninsula.
Uroteuthis is a genus of 14 species of common inshore squids of the Indo-West Pacific and is further subdivided into 3 subgenera. The members of the genus Uroteuthis are the only squids of the family Loliginidae that possess photophores and all species in the genus have a pair of photophore organs on the ventral surface of their ink sac either side of their intestine.
Poa novarae is a species of flowering plant in the family Poaceae (grasses), native to Saint Paul Island. It was first described by Heinrich Wilhelm Reichardt in 1871.
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.
Opisthoteuthis calypso or calypso flapjack octopus is a species of genus Opisthoteuthis, which are known as the cirrate octopuses. Octopuses in this genus are known as the flapjack octopuses and can be found in a variety of oceans across the world.
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.
Opisthoteuthis depressa, also known as the Japanese flapjack octopus, is an octopus found in waters near Japan.
Octopus californicus is an octopus in the family Octopodidae. It is provisionally assigned to the genus Octopus, but some scholars have concluded it belongs in other genera. O. californicus was first documented by S. Stillman Berry in 1911.
Octopus australis is a species of octopus. It gets the common name hammer octopus from a modified arm possessed by males and used in reproduction. It was first described by William Evans Hoyle in 1885, based on a specimen found in Port Jackson in New South Wales.
Octopus conispadiceus is a species of long-ligula octopus, provisionally placed in the genus Octopus. It was first described by Madoka Sasaki in 1917 based on specimens bought at a fish market in Sapporo, Japan.
Octopus superciliosus is a species of octopus. It was first described in 1832 by Jean René Constant Quoy and Joseph Paul Gaimard based on a specimen found off Victoria during the 1826 to 1829 voyage of the Astrolabe.
Abdopus abaculus, or the mosaic octopus, is a species of pygmy octopus. It was first described as Octopus abaculus by M. D. Norman and M. J. Sweeney in 1997 based on specimens caught in Zamboanga del Norte, Philippines.
Callistoctopus rapanui, or the rapanui octopus, is the only endemic octopus species in Rapa Nui. It was first described by Gilbert L. Voss in 1979 as Octopus rapanui.
