''Chironemus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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 hor ...

, commonly known as kelpfishes, belonging to 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 ...

Chironemidae. They are found in the

temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout t ...

waters of the Southern Pacific Ocean.

Taxonomy

The Kelpfishes were placed in the

monogeneric In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

family

Chironemidae ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

in 1862 by the

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ...

Theodore Nicholas Gill Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history ...

. The genus had been described in 1829 by the

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

zoologist Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the Animal, animal kingdom, including the anatomy, structure, embryology, evolution, Biological clas ...

Georges Cuvier Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French natural history, naturalist and zoology, zoologist, sometimes referred to as the "founding father of paleontology". Cuvier ...

when he had described the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

''Chironemus georgianus''. The family is regarded as part of the

superfamily SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...

Cirrhitoidea Cirrhitoidea is a superfamily within the suborder Percoidei of the large order of ray-finned fishes, the Perciformes. Systematics The Cirrhitoidera has been considered to be a superfamily within the large order Perciformes, within the suborder ...

, which is placed within the

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Perciformes Perciformes (), also called the Percomorpha or Acanthopteri, is an order or superorder of ray-finned fish. If considered a single order, they are the most numerous order of vertebrates, containing about 41% of all bony fish. Perciformes means ...

in the 5th Edition of ''

Fishes of the World ''Fishes of the World'' by the American ichthyologist Joseph S. Nelson (1937–2011) is a standard reference for fish systematics. Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the ...

'', however other authorities place this clade within a new order within the wider

Percomorpha Percomorpha () is a large clade of ray-finned fish that includes the tuna, seahorses, gobies, cichlids, flatfish, wrasse, perches, anglerfish, and pufferfish. Evolution Percomorpha are the most diverse group of teleost fish today. Teleosts, an ...

Centrarchiformes Centrarchiformes is an obsolete order of ray-finned fish, now included amongst the perciformes, with 17 previously included families. This order first appeared about 55.8 million years ago in the Eocene Era, and is composed primarily of omnivore ...

. The name of the genus is from

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

''cheir'' meaning "hands" and ''nema'' meaning "thread".

Species

The currently recognized species in this genus are: * ''

Chironemus bicornis ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

'' (

Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ...

, 1898) * ''

Chironemus delfini ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

'' (

Porter Porter may refer to: Companies * Porter Airlines, Canadian regional airline based in Toronto * Porter Chemical Company, a defunct U.S. toy manufacturer of chemistry sets * Porter Motor Company, defunct U.S. car manufacturer * H.K. Porter, Inc., ...

, 1914) * ''

Chironemus georgianus ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

G. Cuvier Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French naturalist and zoologist, sometimes referred to as the "founding father of paleontology". Cuvier was a major figure in nat ...

, 1829 (tasselled kelpfish) * ''

Chironemus maculosus ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

'' ( J. Richardson, 1850) (silver spot) * ''

Chironemus marmoratus The large kelpfish (''Chironemus marmoratus''), the Eastern kelpfish, hiwihiwi, surgefish or kelpfish, is a species of marine ray-finned fish, a kelpfish belonging to the family Chironemidae. It is found in southern Australia, and off the North ...

'' Günther, 1860 (large kelpfish) * ''

Chironemus microlepis ''Chironemus'' is a genus of marine ray finned fish, commonly known as kelpfishes, belonging to the family Chironemidae. They are found in the temperate waters of the Southern Pacific Ocean. Taxonomy The Kelpfishes were placed in the monogene ...

'' Waite, 1916 (smallscale kelpfish)

Characteristics

The fishes within the genus ''Chironemus'' have tubular nostrils which have tufts of

cirri Giovanni Battista Cirri (1 October 1724 – 11 June 1808) was an Italian cellist and composer in the 18th century. Biography Cirri was born in Forlì in the Emilia-Romagna Region of Italy. He had his first musical training with his brother ...

. They have moderately sized

cycloid In geometry, a cycloid is the curve traced by a point on a circle as it rolls along a straight line without slipping. A cycloid is a specific form of trochoid and is an example of a roulette, a curve generated by a curve rolling on another curve ...

scales. The continuous

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 conv ...

has a long base and robust spines. The spiny part of the dorsal fin is separated from the soft rayed part by distinct incision. 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 se ...

has small with thick spines. The large

pectoral 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 have their upper fin rays branched and 6 the six lower rays are notably more robust and are unbranched. These high backed fishes resemble the morwongs belonging to the family

Cheilodactylidae Cheilodactylidae , commonly called morwongs but also known as butterfish, fingerfins, jackassfish, sea carp, snappers, and moki, is a family of marine ray-finned fish. They are found in subtropical oceans in the Southern Hemisphere. The common ...

but they have a truncate

caudal 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 se ...

and fewer soft rays in the anal fin. They typically have a marbled colour pattern camouflaging them in their preferred rocky habitat. The dorsal dins of these fishes contain 14-16 spines and 15-21 soft rays while their anal fins contain 6-8 soft rays. They have

vomerine teeth The vomer (; lat, vomer, lit=ploughshare) is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxill ...

but there are no teeth on the

palatine A palatine or palatinus (in Latin; plural ''palatini''; cf. derivative spellings below) is a high-level official attached to imperial or royal courts in Europe since Roman times.

. They grow to a maximum of approximately .

Distribution and habitat

''Chironemus'' kelpfishes are found in the southern Pacific Ocean off Asutralia, New Zealand and the western coast of South America off Peru and Chile. They are coastal fishes adapted to living in shallow waters where they are exposed to waves.

Biology

''Chironemus'' kelpfishes feed on benthic invertebrates. They lodge themselves into small niches or interstices in rocks holoding their bodies in place with their large pectoral fins.

References

{{Taxonbar, from=Q2856266 Taxa named by Georges Cuvier Cirrhitoidea