''Chromis abyssus'' is a species of

damselfish Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30 ...

first discovered in 1997 and described in 2008. The long fish only lives more than below the surface of the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

around the coast of the Ngemelis Islands,

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 Caro ...

. Adults have been observed living singly or in pairs, whereas juveniles tend to live in groups.

Etymology

Its specific name, ''abyssus'', is a Latinised form of the Greek noun ' (meaning "abyss"), in honour of the documentary film ''

Pacific Abyss ''Pacific Abyss'' is a three-part series on British television's (BBC1), which first aired in Sunday 17 August 2008. It is hosted by Kate Humble, Mike Smart and Mike deGruy with filming beginning in April/May 2007. It is an underwater wildlife ...

'', produced by the

British Broadcasting Corporation #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board exam. ...

, which funded the expedition on which the

type specimen In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to a ...

s were collected. The vernacular name "deep blue ''Chromis''", a reference to both the life colour of this species and the relatively (within the context of the genus) deep-dwelling habits, is suggested instead of the more literally translated "abyss ''Chromis''", so as not to imply that the species inhabits depths commonly defined as

abyssal 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 an ...

ZooBank

''C. abyssus'' was the first species entered into the

ZooBank ZooBank is an open access website intended to be the official International Commission on Zoological Nomenclature (ICZN) registry of zoological nomenclature. Any nomenclatural acts (e.g. publications that create or change a taxonomic name) need t ...

registry with a timestamp of 2008-01-01T00:00:02, and it was selected as one of "The Top 10 New Species" described in 2008 by The International Institute for Species Exploration at

Arizona State University Arizona State University (Arizona State or ASU) is a public research university in the Phoenix metropolitan area. Founded in 1885 by the 13th Arizona Territorial Legislature, ASU is one of the largest public universities by enrollment in the ...

and an international committee of

taxonomists In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given ...

References

External links

*
AQUATAB.NET
{{Taxonbar, from=Q1823048

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Fish of Palau Fish described in 2008