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Nomenclatural changes in a taxonomically complex group (Amphipoda: Gammaridae)
Mario García-París1, Pilar Jurado-Angulo2, Paula C Rodríguez-Flores3
1Departamento de Biodiversidad y Biología Evolutiva. Museo Nacional de Ciencias Naturales, MNCN-CSIC. c/ José Gutiérrez Abascal, 2. 28006, Madrid, Spain. mparis@mncn.csic.es.
Zootaxa
|April 12, 2023
Summary
This study clarifies the taxonomy of the Gammaridae family, renaming the problematic Homoeogammarus genus to Pectenogammarus. This taxonomic revision establishes 20 new combinations and synonymizes two genera.
Area of Science:
- Taxonomy and Systematics
- Crustacean Biology
- Zoology
Background:
- The family Gammaridae presents significant taxonomic challenges.
- Previous phylogenetic studies (Hou & Sket, 2016; Sket & Hou, 2018) utilized the name Homoeogammarus Schellenberg, 1937 for diverse taxa.
- The application of the name Homoeogammarus Schellenberg, 1937 has become problematic.
Purpose of the Study:
- To conduct a nomenclatural review of Pectenogammarus Reid, 1940.
- To resolve taxonomic uncertainties within the Gammaridae family.
- To propose a stable taxonomic classification for the affected genera.
Main Methods:
- Detailed bibliographic review of taxonomic literature.
- Analysis of phylogenetic proposals by Hou & Sket (2016) and Sket & Hou (2018).
- Nomenclatural reassessment and proposal of new combinations and synonymies.
Main Results:
- The clade previously referred to as "Homoeogammarus" (Sket & Hou, 2018) is formally named Pectenogammarus Reid, 1940 (stat. nov.).
- Twenty new species combinations are established under the genus Pectenogammarus.
- The genera Homoeogammarus Barnard et Barnard, 1983 and Laurogammarus G.S. Karaman, 1984 are formally synonymized with Pectenogammarus Reid, 1940 (syn. nov.).
Conclusions:
- The taxonomic status of Pectenogammarus Reid, 1940 has been clarified, resolving nomenclatural issues.
- The proposed synonymies and new combinations provide a more stable classification for this group of gammarids.
- A comprehensive synonymic catalogue is provided to aid future taxonomic research.
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