A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean
El género Xyrichtys es muy variable en morfología y coloración, y la forma de la cabeza es inadecuada para ciertas identificaciones. Se revisa el género, estimándose que tiene seis especies en el Pacífico Oriental Tropical y se describe, Xyrichtysmundiceps. Dudamos de la validez de Xyrichtys perlas,...
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| Formato: | Online |
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Universidad de Costa Rica
2001
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/26234 |
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RBT262342022-05-25T21:41:59Z A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean Victor, Benjamin C. Wellington, Gerard M. Caldow, Chris razorfish taxonomy wrasses labridae Xyrichtys Pacific review Several new species of the razorfish genus Xyrichtys have been discovered recently in the tropical eastern Pacific region. The taxonomy of this group of fishes is not clear, since juveniles, females, and males often have different color patterns and morphologies, and some species descriptions are incomplete. We review the members of this genus in this region based on our recent collections and describe the juvenile, initial, and terminal phase color patterns of the Cape razorfish, Xyrichtys mundiceps. We question the validity of Xyrichtys perlas, which appears to represent the initial phase of X. mundiceps. We conclude that six species of Xyrichtys are present in the tropical eastern Pacific, including one undescribed species we have collected from the Galapagos Islands and one uncollected new species from the Revillagigedos Islands. Xyrichtys mundiceps is found in Baja California and in Panama. Xyrichtys pavo is a large species found throughout the Indo-Pacific and eastern Pacific. Xyrichtys victori is a colorful species native to the Galapagos and Cocos Islands, and Xyrichtys wellingtoni is apparently endemic to Clipperton Atoll. The undescribed species is known only from the Galapagos Islands and has a dark-colored juvenile with extended first dorsal fin rays that are not separated from the remainder of the fin. The terminal phase of this species is unknown. We present keys to the known juvenile and initial phase stages of five species. In addition, we document the allometric growth of the head of razorfishes and show that the head shape of small individuals of Xyrichtys razorfishes is no different from that of the razorfish genus Novaculichthys, and therefore we suggest caution in using this character to distinguish these genera. El género Xyrichtys es muy variable en morfología y coloración, y la forma de la cabeza es inadecuada para ciertas identificaciones. Se revisa el género, estimándose que tiene seis especies en el Pacífico Oriental Tropical y se describe, Xyrichtysmundiceps. Dudamos de la validez de Xyrichtys perlas, que podría ser una fase temprana de X. mundiceps. Universidad de Costa Rica 2001-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/26234 Revista de Biología Tropical; Vol. 49 No. S1 (2001): Volume 49 - Supplement 1 - July 2001: Systematics of Tropical Eastern Pacific Fishes; 101–110 Revista de Biología Tropical; Vol. 49 Núm. S1 (2001): Volumen 49 - Suplemento 1 - Julio 2001: Sistemática de Peces del Pacífico Oriental Tropical; 101–110 Revista Biología Tropical; Vol. 49 N.º S1 (2001): Volume 49 - Supplement 1 - July 2001: Systematics of Tropical Eastern Pacific Fishes; 101–110 2215-2075 0034-7744 10.15517/rbt.v49i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/26234/26473 Copyright (c) 2001 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Victor, Benjamin C. Wellington, Gerard M. Caldow, Chris |
| spellingShingle |
Victor, Benjamin C. Wellington, Gerard M. Caldow, Chris A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| author_facet |
Victor, Benjamin C. Wellington, Gerard M. Caldow, Chris |
| author_sort |
Victor, Benjamin C. |
| description |
El género Xyrichtys es muy variable en morfología y coloración, y la forma de la cabeza es inadecuada para ciertas identificaciones. Se revisa el género, estimándose que tiene seis especies en el Pacífico Oriental Tropical y se describe, Xyrichtysmundiceps. Dudamos de la validez de Xyrichtys perlas, que podría ser una fase temprana de X. mundiceps. |
| title |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| title_short |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| title_full |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| title_fullStr |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| title_full_unstemmed |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| title_sort |
review of the razorfishes (perciformes: labridae) of the eastern pacific ocean |
| title_alt |
A review of the razorfishes (Perciformes: Labridae) of the eastern Pacific Ocean |
| publisher |
Universidad de Costa Rica |
| publishDate |
2001 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/26234 |
| work_keys_str_mv |
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