''Pagetopsis maculata'' is a species of marine

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or h ...

belonging to the

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

Channichthyidae The crocodile icefish or white-blooded fish comprise a family (Channichthyidae) of notothenioid fish found in the Southern Ocean around Antarctica. They are the only known vertebrates to lack hemoglobin in their blood as adults. Icefish populati ...

, the crocodile icefishes. It is found in the

Southern Ocean The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smal ...

. It is of no interest to commercial fisheries.

Taxonomy

''Pagetopsis maculata'' was first formally described in 1958 as ''Pagetopsis maculatus'' by the

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...

scientists

Vladimir Viktorovich Barsukov Vladimir may refer to: Names * Vladimir (name) for the Bulgarian, Croatian, Czech, Macedonian, Romanian, Russian, Serbian, Slovak and Slovenian spellings of a Slavic name * Uladzimir for the Belarusian version of the name * Volodymyr for the Uk ...

and

Yuri Yefimovich Permitin Yuri may refer to: People and fictional characters Given name * Yuri (Slavic name), the Slavic masculine form of the given name George, including a list of people with the given name Yuri, Yury, etc. * Yuri (Japanese name), also Yūri, feminine J ...

with the

type locality Type locality may refer to: * Type locality (biology) * Type locality (geology) See also * Local (disambiguation) * Locality (disambiguation) {{disambiguation ...

given as

MacKenzie Bay MacKenzie Bay is a relatively small embayment of the western extremity of the Amery Ice Shelf, Antarctica, about northeast of Foley Promontory. On 10 February 1931 the British Australian New Zealand Antarctic Research Expedition (BANZARE) sighte ...

. The specific name should have been feminine and was subsequently changed to ''maculata'', an allusion to the more irregular blotched pattern on its body compared to the striped pattern of ''P. macropterus''. The specific name ''maculata'' means "spotted".

Description

''Pagetopsis maculata'' is greyish-green but whitish ventrally with 15 irregularly shaped dark cross-bars on each side of its body that are lighter at the centre. Dark stripes are also present on the cheek and otherwise uniformly blackish first

dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through c ...

. The

pelvic fin Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two e ...

is also striped. The dorsal fins contain 9 to 12 spines and 25 to 27 soft rays while the

anal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as s ...

has 22 to 24 soft rays. The maxilla reaches to or just beyond the front of the orbit. This species attains a maximum

total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

of .

Distribution, habitat and biology

''Pagetopsis maculata'' has a circum-

Antarctic The Antarctic ( or , American English also or ; commonly ) is a polar region around Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau and o ...

distribution on the continental shelf from . They have large eyes, the colour pattern and the reported depths of capture seem to infer that this

bathydemersal Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).Walrond Carl . "Coastal fish - Fish of the open sea floor"Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009 They occ ...

species inhabits deeper water than its congener '' Pagetopsis macropterus''. This species has a long larval pelagic phase and is of no interest to

commercial fisheries Commercial fishing is the activity of catching fish and other seafood for commercial profit, mostly from wild fisheries. It provides a large quantity of food to many countries around the world, but those who practice it as an industry must oft ...

References

{{Taxonbar, from=Q2788769 maculata Fish of the Southern Ocean Fish described in 1958