Pittier's crab-eating rat
Pittier's crab-eating rat (Ichthyomys pittieri) is a species of semiaquatic rodent in the family Cricetidae.[2] It is endemic to Venezuela. The natural habitats of this species are rivers and swamps. Its karyotype has 2n = 92 and FNa = 98. This was previously thought to be the highest chromosome number known for a mammal,[3] but it has since been found that the plains viscacha rat or red viscacha rat (Tympanoctomys barrerae) has 4x = 2n = 102.[4]
| Pittier's crab-eating rat | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Ichthyomys |
| Species: | I. pittieri |
| Binomial name | |
| Ichthyomys pittieri Handley & Mondolfi, 1963 | |
References
- Roach, N.; Naylor, L.; McCay, S. (2019). "Ichthyomys pittieri". IUCN Red List of Threatened Species. 2019: e.T10762A22384567. doi:10.2305/IUCN.UK.2019-2.RLTS.T10762A22384567.en. Retrieved 16 November 2021.
- Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1120. ISBN 978-0-8018-8221-0. OCLC 62265494.
- Schmid, M.; Fernández-Badillo, A.; Feichtinger, W.; Steinlein, C.; Roman, J. I. (1988). "On the highest chromosome number in mammals". Cytogenetic and Genome Research. 49 (4): 305–8. doi:10.1159/000132683. PMID 3073914.
- Contreras LC, Torres-Mura JC, Spotorno AE (1990). "The largest known chromosome number for a mammal, in a South American desert rodent". Experientia. 46 (5): 506–508. doi:10.1007/BF01954248. PMID 2347403.
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