Novaculini

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Novaculini
Rockmover wrasse (Novaculichthys taeniourus).jpg
Rockmover wrasse
( Novaculichthys taeniourus )
Pearly Razorfish, Xyrichtys novacula, Haute-Corse, Corse, FR imported from iNaturalist photo 122244990 (cropped).jpg
Pearly razorfish
( Xyrichtys novacula )
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Labriformes
Family: Labridae
Tribe: Novaculini
Russell (1988)
Genus

The novaculine wrasses are saltwater fish of the tribe Novaculini, a subgroup of the wrasse family (Labridae). The group is also known more colloquially as the razorfishes. They are found throughout the global tropics, and live obligately on the sand plains of reef-associated slopes. [1]

Contents

Taxonomy

There is some uncertainty as to whether the novaculine wrasses are the sister group to the cigar wrasse (Cheilio inermis) or to the Juan Fernández wrasse ( Malapterus reticulatus ). Molecular phylogenetics consistently finds Novaculichthys to be the sister group to the rest of the tribe. [1] [2]

Taxonomy of the group has traditionally been hindered by the problem that outwardly, some species can only be distinguished from each other by their colour patterns, which often do not persist in preserved specimens. Moreover in live specimens, males, females, and juveniles within the same species can vary greatly in appearance, and it is unknown what some of these growth stages look like in certain species. [3] This has become less of a problem with the advent of molecular phylogenetics, [2] but even so, these fish are difficult to find, and even more difficult to capture, limiting the study of this unusual group of wrasses. [3]

Biology

The novaculine wrasses live on sandbeds, usually associated with reefs. Their common name "razorfish" is derived from their flattened, blade-like snouts and strongly laterally compressed bodies. These adaptations allow them to dive into and move quickly through sand. [3] [4]

Reproduction

Females can change sex into males. Most species form harems. The larval form is relatively long lived, lasting up to several months, and can be found in the open ocean. [3]

Genera

GenusImage
Ammolabrus

J. E. Randall & Carlson, 1997

Cymolutes

Günther, 1861

Knife Wrasse, Cymolutes praetextatus, Kingston 2899, Norfolk Island imported from iNaturalist photo 458463839 (cropped).jpg

C. praetextatus

Novaculichthys

Bleeker, 1862

Rockmover Wrasse, Novaculichthys taeniourus, Slaughter Bay, Kingston 2899, Norfolk Island imported from iNaturalist photo 188687238 (cropped).jpg

N. taeniourus

Novaculoides

J. E. Randall & Earle, 2004

Seagrass Wrasse, Novaculoides macrolepidotus, Emily Bay, Kingston 2899, Norfolk Island imported from iNaturalist photo 120524013 (cropped).jpg

N. macrolepidotus

Novaculops

L. P. Schultz, 1960

Xyrichtys woodi.jpg

N. woodi

Xyrichtys

G. Cuvier, 1814

Xyrichtys martinicensis (cropped).jpg

X. martinicensis

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<span class="mw-page-title-main">Parrotfish</span> Clade of ray-finned fishes

Parrotfish are a group of fish species traditionally regarded as a family (Scaridae), but now often treated as a subfamily (Scarinae) or tribe (Scarini) of the wrasses (Labridae). With roughly 95 species, this group's largest species richness is in the Indo-Pacific. They are found in coral reefs, rocky coasts, and seagrass beds, and can play a significant role in bioerosion.

<i>Choerodon</i> Genus of fishes

Choerodon is a genus of wrasses native to the Indian Ocean and the western Pacific Ocean. They are commonly referred to as tuskfish, because most species have sharp tusk-like teeth.

<span class="mw-page-title-main">Checkerboard wrasse</span> Species of fish

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<i>Gomphosus varius</i> Species of fish

The bird wrasse, Gomphosus varius, is a species of the wrasse family.

<span class="mw-page-title-main">Barred thicklip</span> Species of fish

The barred thicklip wrasse is a species of fish belonging to the wrasse family, native from the Indo-Pacific.

<span class="mw-page-title-main">Yellow-breasted wrasse</span> Species of fish

The yellow-breasted wrasse, Anampses twistii, is a species of wrasse native to the tropical waters of the Indo-Pacific area from the Red Sea to the Tuamoto Islands. It is found in lagoons and on reefs at depths of 5 to 30 m. It can reach a length of 18 cm (7.1 in). It is of minor importance to local commercial fisheries and can be found in the aquarium trade.

<span class="mw-page-title-main">Blue-banded wrasse</span> Species of fish

The blue-banded wrasse is a species of wrasse native to the easternmost Indian Ocean and the western Pacific Ocean. It is an inhabitant of reefs, preferring substrates of flat sand or rubble at depths of from 15 to 85 m. This species grows to 12 cm (4.7 in) in standard length. It is of minor importance to local commercial fisheries.

<i>Hemigymnus melapterus</i> Species of fish

The blackeye thicklip wrasse or half-and-half wrasse is a species of fish belonging to the wrasse family. It is native to the Indo-Pacific.

<i>Iniistius pentadactylus</i> Species of fish

Iniistius pentadactylus, the fivefinger wrasse or fivefinger razorfish, is a species of marine ray-finned fish from the family Labridae, the wrasses, which has a wide Indo-Pacific distribution.

<i>Halichoeres prosopeion</i> Species of fish

Halichoeres prosopeion, commonly called the twotone wrasse, half-grey wrasse or zig-zag wrasse, is a fish species in the wrasse family native to the western Pacific Ocean.

<span class="mw-page-title-main">Labriformes</span> Order of ray-finned fishes

Labriformes is an order of ray-finned fishes which includes the wrasses, cales and parrotfishes, within the clade Percomorpha. Some authors include the Labriformes as the clade Labroidei within the Perciformes while others include more families within the Labriformes, such as the cichlids and damselfishes, but the 5th edition of Fishes of the World includes just three listed in the section below and includes 87 genera and about 630 species.

<i>Pseudolabrus guentheri</i> Species of fish

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<i>Cirrhilabrus finifenmaa</i> Species of fish

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<i>Iniistius celebicus</i> Species of fish

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<i>Anampses neoguinaicus</i> Species of fish

Anampses neoguinaicus, also known as the New Guinea wrasse and black-banded wrasse, is a species of fish found in the western Pacific Ocean.

<i>Anampses geographicus</i> Species of fish

Anampses geographicus, the geographic wrasse, is a species of fish found in the Indo-West Pacific Ocean.

<span class="mw-page-title-main">Julidini</span>

The julidine wrasses are saltwater fish of the tribe Julidini, a subgroup of the wrasse family (Labridae). It contains the highest number of genera and species out of all the wrasse tribes, with 20 genera and over 200 species, comprising almost a third of all wrasse species.

<span class="mw-page-title-main">Cheilinini</span>

The cheiline wrasses are saltwater fish of the tribe Cheilinini, a subgroup of the wrasse family (Labridae).

<span class="mw-page-title-main">Hypsigenyini</span> Tribe of fishes

The hypsigenyine wrasses are saltwater fish of the tribe Hypsigenyini, a subgroup of the wrasse family (Labridae). The group is circumglobal, being found in almost all the of world's shallow tropical marine waters, although some species are also found in temperate zones.

References

  1. 1 2 Westneat, Mark W.; Alfaro, Michael E. (August 2005). "Phylogenetic relationships and evolutionary history of the reef fish family Labridae". Molecular Phylogenetics and Evolution. 36 (2): 370–390. Bibcode:2005MolPE..36..370W. doi:10.1016/j.ympev.2005.02.001. PMID   15955516.
  2. 1 2 Hughes, Lily C; Nash, Chloe M; White, William T; Westneat, Mark W (2023-05-01). "Concordance and Discordance in the Phylogenomics of the Wrasses and Parrotfishes (Teleostei: Labridae)". Systematic Biology. 72 (3): 530–543. doi:10.1093/sysbio/syac072. ISSN   1063-5157. PMID   36331534.
  3. 1 2 3 4 Victor, B. C.; Wellington, G. M.; Caldow, C. (July 2001). "A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean". Revista de Biologia Tropical. 49 Suppl 1: 101–110. ISSN   0034-7744. PMID   15260158.
  4. FAO (2016). The living marine resources of the Eastern Central Atlantic. Volume 4: Bony fishes part 2 (Perciformes). FAO.