| Ryukyu spiny rat | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Muridae |
| Genus: | Tokudaia |
| Species: |
T. osimensis
|
| Binomial name | |
| Tokudaia osimensis (Y. Abe, 1934) | |
| |
The Ryukyu spiny rat (Tokudaia osimensis) is a species of rodent in the family Muridae.[2] EndemictoAmami Ōshima island in the Amami Islands of the Ryukyu archipelagoofJapan, its natural habitatissubtropical moist broadleaf forest. The karyotype has an odd diploid number, 2n = 25.[2] Like its relative T. tokunoshimensis, it has lost its Y chromosome and SRY gene.[3]
The species is threatened by habitat destruction and fragmentation, predationbyferal cats and dogs and introduced mongooses, and competition with introduced black rats.[1]
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| Tokudaia osimensis |
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