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A new lineage of deep-reef gobies from the Caribbean, including two new species and one new genus (Teleostei: Gobiidae: Gobiosomatini).
- Source :
- Zoological Journal of the Linnean Society; Feb2023, Vol. 197 Issue 2, p322-343, 22p
- Publication Year :
- 2023
-
Abstract
- Fish communities on tropical deep reefs are dominated by species that belong to families primarily composed of shallow-water species. Collections of deep-reef fishes via submersibles have allowed us to include these deep-reef species in molecular phylogenies, providing insights into the timing and frequency of invasions from shallow to deep reefs. Here we provide evidence of a new deep-reef invasion in the tribe Gobiosomatini in the family Gobiidae (gobies). We describe two new species, one of which belongs to a new genus, and incorporate these taxa into a time-calibrated molecular phylogeny of Gobiosomatini to show that, collectively, these two genera represent a previously unreported independent invasion on to deep reefs that occurred approximately 20–30 million years ago. These new taxa are readily distinguished from related genera and species by a combination of live coloration, pelvic-fin morphology, meristic characters, head-pore patterns and other osteological characters. We discuss the relevance of these two new species to the systematics of the tribe Gobiosomatini and include a comparison to all known genera in the tribe. [ABSTRACT FROM AUTHOR]
- Subjects :
- GOBIIDAE
OSTEICHTHYES
MOLECULAR phylogeny
FISH communities
SPECIES
FISHING villages
Subjects
Details
- Language :
- English
- ISSN :
- 00244082
- Volume :
- 197
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Zoological Journal of the Linnean Society
- Publication Type :
- Academic Journal
- Accession number :
- 161652845
- Full Text :
- https://doi.org/10.1093/zoolinnean/zlac013