Julidini
 | This article relies largely or entirely on a single source. (January 2025) |
| Julidini | |
|---|---|
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| Sunset wrasse (Thalassoma lutescens) | |
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| Eastern king wrasse (Coris sandeyeri) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Labriformes |
| Family: | Labridae |
| Tribe: | Julidini Russell, 1988 |
| Genus | |
|
20., see text | |
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,[1] comprising almost a third of all wrasse species.[2]
Taxonomy
[edit]A 2005 molecular phylogenetic analysis strongly supports the monophyly of Julidini. It also found that the cleaner wrasse genera that traditionally comprised the tribe Labrichthyini (Labrichthys, Labropsis, Diproctacanthus, Larabicus, and Labroides), although forming a monophyletic group, were all nested within Julidini. The tribe Pseudolabrini is likely the sister taxon of Julidini, if not nested within Julidini; the former is additionally supported by Hughes et al 2023.[1][2]
Several genera in this tribe are problematic. Most notably, Halichoeres and Coris are paraphyletic or polyphyletic.[1][2] Gomphosus has also been repeatedly found nested within Thalassoma.[2]
The difficulty in resolving relationships within Julidini is a result of the rapid speciation of julidine wrasses.[2]
Evolution
[edit]The tribe Julidini likely originated in the Eocene. It is hypothesized that the relatively warm and stable climate that followed the Early Eocene Climactic Optimum may have played a part in the diversification of julidine wrasses. Fossil julidine wrasses such as †Coris sigismundi have been found in rocks dating to the Miocene.[2]
Genera
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References
[edit]- ^ a b c Westneat, Mark W.; Alfaro, Michael E. (2005-03-11). "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.
- ^ a b c d e f 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.