''Psychrolutes microporos'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of deepwater marine fish in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Psychrolutidae The fish family Psychrolutidae (commonly known as blobfishes, toadfishes, flathead sculpins, tadpole sculpins,) contains over 35 recognized species in 8 genera. This family consists of bottom-dwelling marine sculpins shaped like tadpoles, with l ...

, commonly known as a blobfish or fathead. It is found in the

abyssal zone The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. "Abyss" derives from the Greek word , meaning bottomless. At depths of , this zone remains in perpetual darkness. It covers 83% of the total area of the ocean a ...

in waters around

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

Discovery

A specimen of ''Psychrolutes microporos'' was trawled by the RV ''James Cook'' and Doctor Ignacio Hernández Ricordi in 1983 and described by Joseph Nelson in 1995. The

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

is in the

Museum of New Zealand The Museum of New Zealand Te Papa Tongarewa is New Zealand's national museum and is located in Wellington. ''Te Papa Tongarewa'' translates literally to "container of treasures" or in full "container of treasured things and people that spring fr ...

. Another specimen was collected at a depth of off the coast of New Zealand. Another specimen was collected in 2007 in the

Tasman Sea The Tasman Sea (Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abe ...

at a depth of .

Description

''Psychrolutes microporos'' is a whitish colour and is flattened laterally, with a wide mouth.Blobfish: ''Psychrolutes microporos''
Retrieved 2011-10-28. Blobfish which are pulled up from the depths too quickly suffer severe tissue damage because of the drastic drop in pressure, and morph into an unsightly gelatinous mass (hence the name "blobfish") with a prominent proboscis. Blobfish in their natural deep-sea habitat have a completely different appearance, recognizably piscine, compact, and with no proboscis. Blobfish can support extremely high pressures in the deep ocean, when compared to pressures closer to the surface of the ocean.

Distribution

''Psychrolutes microporos'' is found in the abyssal depths between the Australian mainland and Tasmania.
Retrieved 2011-10-28. Two specimens were collected in the month-long NORFANZ Expedition of 2003 which was examining the

biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') l ...

of the

seamount A seamount is a large geologic landform that rises from the ocean floor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abru ...

s and slopes of the

Norfolk Ridge The Norfolk Ridge is a long submarine ridge running between New Caledonia and New Zealand, about 1300 km off the east-coast of Australia. It is part of a complex region of ridges between the crust of the Pacific Basin and the continental cr ...

. They averaged 1.7 kg (4 lb) and were found in a single location.NORFANZ Voyage
Retrieved 2011-10-28.

Biology

The texture of ''Psychrolutes micropoross body is gelatinous, a feature often found in

deep sea fish Deep-sea fish are fish that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish is, by far, the most common deep-sea fish. Other deep sea fishes include the flashlight ...

. Little is known of its behaviour because of the difficulty of observing it in its natural habitat. It is thought to be an

ambush predator Ambush predators or sit-and-wait predators are carnivorous animals that capture or trap prey via stealth, luring or by (typically instinctive) strategies utilizing an element of surprise. Unlike pursuit predators, who chase to capture prey us ...

, consuming anything edible that comes within its reach.

References

{{Taxonbar, from=Q2912702 Psychrolutidae Fish of the Pacific Ocean Fish described in 1995 Taxa named by Joseph S. Nelson