A taxonomic revision of Parachela with descriptions of two new species (Cypriniformes: Xenocyprididae)
Issued Date
2024-01-01
Resource Type
ISSN
00221112
eISSN
10958649
Scopus ID
2-s2.0-85204492333
Journal Title
Journal of Fish Biology
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Fish Biology (2024)
Suggested Citation
Page L.M., Tangjitjaroen W., Limpichat J., Randall Z.S., Boyd D.A., Tongnunui S., Pfeiffer J.M. A taxonomic revision of Parachela with descriptions of two new species (Cypriniformes: Xenocyprididae). Journal of Fish Biology (2024). doi:10.1111/jfb.15869 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/101405
Title
A taxonomic revision of Parachela with descriptions of two new species (Cypriniformes: Xenocyprididae)
Corresponding Author(s)
Other Contributor(s)
Abstract
The taxonomy of the Parachela–Oxygaster–Macrochirichthys clade of Xenocyprididae has been confused since the original descriptions of Parachela oxygastroides and Parachela hypophthalmus in the mid-19th century. The confusion seems attributable to the substantial intraspecific variation in color and other morphological characteristics of species of Oxygaster and Parachela. Morphological data on 401 specimens from throughout the range of Parachela and molecular phylogenetic analyses indicate that six available species names for Parachela are valid: Parachela cyanea, P. hypophthalmus, Parachela ingerkongi, Parachela johorensis (removed from the synonymy of P. oxygastroides), P. oxygastroides, and Parachela williaminae. In addition, two new species of Parachela, Parachela melanosticta and Parachela microlepis, are described. Chela pointoni is a synonym of P. oxygastroides, not a valid species of Oxygaster as previously hypothesized, and Parachela maculicauda is a synonym of Parachela johorensis. Considerable morphological and genetic variation is present in all well-sampled species of Parachela.