| Display parents | 3 |
|---|---|
| Taxon | Echimyinae |
| Authority | Gray 1825 [1] |
| Subdivision ranks | Tribes |
| Subdivision | Echimyini Myocastorini |
Echimyinae[1] is a subfamily of rodents belonging to the spiny rats family Echimyidae.[2] It contains 14 arboreal genera—all the members of the tribe Echimyini, plus Callistomys—a few terrestrial genera (Thrichomys, Hoplomys, and Proechimys), and a subaquatic genus (Myocastor).[3]
Systematics
The taxonomic content of Echimyinae has been reshaped over time, because of two realizations. The first is a better understanding of the evolution of morphological characters, leading to the recognition that key character states long used to group genera into higher units were demonstrably homoplastic. The second came from the a phylogenetic analysis of molecular sequence data.[3][4]
| style="width: 100px; | Genera | Molecular-based systematics | Traditional systematics |
|---|---|---|
| Echimys | Echimyini | Echimyinae |
| Phyllomys | Echimyini | Echimyinae |
| Makalata | Echimyini | Echimyinae |
| Pattonomys | Echimyini | Echimyinae |
| Toromys | Echimyini | Echimyinae |
| Diplomys | Echimyini | Echimyinae |
| Santamartamys | Echimyini | Echimyinae |
| Isothrix | Echimyini | Echimyinae |
| Dactylomys | Echimyini | Dactylomyinae |
| Olallamys | Echimyini | Dactylomyinae |
| Kannabateomys | Echimyini | Dactylomyinae |
| Lonchothrix | Echimyini | Eumysopinae |
| Mesomys | Echimyini | Eumysopinae |
| Callistomys | Myocastorini | Echimyinae |
| Myocastor | Myocastorini | Myocastoridae |
| Thrichomys | Myocastorini | Eumysopinae |
| Hoplomys | Myocastorini | Eumysopinae |
| Proechimys | Myocastorini | Eumysopinae |
Phylogeny
The subfamily Echimyinae groups most of the spiny rat family's generic diversity into two tribes: Echimyini and Myocastorini.[3]
References
- ^ Gray, J. E. (1825). "Outline of an attempt at the disposition of the Mammalia into tribes and families with a list of the genera apparently appertaining to each tribe". Annals of Philosophy. 10: 337–344.
- ^
- ^ Fabre, Pierre-Henri; Patton, James L.; Leite, Yuri L. R. (2016). "Family Echimyidae (hutias, South American spiny-rats and coypu)". Handbook of the Mammals of the World. Vol 6. Lagomorphs and Rodents I. Wilson, Don E.; Lacher, Thomas E. Jr; Mittermeier, Russell A. (eds.). Barcelona: Lynx Edicions. pp. 552–641. ISBN 978-84-941892-3-4.
- ^ Fabre, Pierre-Henri; Upham, Nathan S.; Emmons, Louise H.; Justy, Fabienne; Leite, Yuri L. R.; Loss, Ana Carolina; Orlando, Ludovic; Tilak, Marie-Ka; Patterson, Bruce D.; Douzery, Emmanuel J. P. (2017-03-01). "Mitogenomic Phylogeny, Diversification, and Biogeography of South American Spiny Rats". Molecular Biology and Evolution. 34 (3): 613–633. doi:10.1093/molbev/msw261. ISSN 0737-4038. PMID 28025278