''Centropyge abei'' (Abe's angelfish) 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 ...

, a small

marine angelfish Marine angelfish are perciform fish of the family Pomacanthidae. They are found on shallow reefs in the tropical Atlantic, Indian, and mostly western Pacific Oceans. The family contains seven genera and about 86 species. They should not be conf ...

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 ...

Pomacanthidae Marine angelfish are perciform fish of the family Pomacanthidae. They are found on shallow reefs in the tropical Atlantic, Indian, and mostly western Pacific Oceans. The family contains seven genera and about 86 species. They should not be conf ...

. It is found in the western Pacific Ocean.

Description

''Centropyge abei'' has a high, flattened

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 ...

, longer and less arched than this of the other pygmy angelfish of the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

Centropyge ''Centropyge'' is a genus of ray-finned fish, marine angelfish belonging to the family Pomacanthidae found in the Atlantic, Indian and Pacific Ocean. These species do not exceed 15 cm in length and live in haremic structures with one dominant ...

'', other than ''C. colini''. Another characteristic shared between this species and '' C. colini'' is the small face with the large eyes set quite far forward. Both ''C. abei'' and ''C. colini'' are found in relatively deep water. The overall colour of the body is yellow with the upper third of back, the dorsal fin, and the upper part of head being black. There is a wide white bar immediately in front of the origin of the dorsal fin and this reaches at least as far as the upper edge of the gill cover. The caudal fin and the caudal peduncle are white. Juveniles are less distinctly marked and may have a white tail stripe. The dorsal fin contains 13 spines and 17 soft rays while the anal fin has 3 spines and 18 soft rays. This species attains a maximum total length of .

Distribution

''Centropyge abei'' is found in the Western Pacific Ocean off northern Sulawesi,

Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Ca ...

, southern Japan and on

Holmes Reef Holmes may refer to: Name * Holmes (surname) * Holmes (given name) * Baron Holmes, noble title created twice in the Peerage of Ireland * Chris Holmes, Baron Holmes of Richmond (born 1971), British former swimmer and life peer Places In the Un ...

in the

Coral Sea The Coral Sea () is a marginal sea of the South Pacific off the northeast coast of Australia, and classified as an interim Australian bioregion. The Coral Sea extends down the Australian northeast coast. Most of it is protected by the Fren ...

off

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

Habitat and biology

''Centropyge abei'' occurs at depths of over substrates consisting primarily of variably sized rubble, at temperatures of . It is also found on outer reef slopes, drop offs and in caves.

Systematics

''Centropyge abei'' was first formally described in 2006 by Gerald Allen, Forrest Young and Patrick L. Colin with the

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

given as the southeast side of Manado Tua, on Sulawesi. The specific name honours the director of the Japanese public aquarium

Aquamarine Fukushima (officially ) is an aquarium located in Iwaki, Fukushima, Japan. The aquarium opened on 15 July 2000. The public aquarium is the largest in the Tohoku region and is focusing on education of environment. 　 History The nickname "Aquamarine Fuku ...

Yoshitaka Abe Yoshitaka is a masculine Japanese given name and a Japanese surname. Possible writings Yoshitaka can be written using many different combinations of kanji characters. Here are some examples: *義孝, "justice, filial piety" *義隆, "justice, n ...

, which funded the expedition on which the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

was collected. Within the

''Centropyge'' it appears to be closest to C. colini, both species sharing adaptations for life on deeper reefs than their congeners. other authorities react this species as ''

incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...

'' within the genus.

References

{{Taxonbar, from=Q2681504 abei Fish described in 2006