Acomys (Acomys) cahirinus
Creators
Description
Acomys (Acomys) cahirinus (E. Geoffroy 1803)
[Acomys (Acomys)] cahirinus (E. Geoffroy 1803), Cat. Mamm. Mus. Natl. Hist. Nat., Paris: 195.
Type Locality: Egypt, Cairo.
Vernacular Names: Northeast African Spiny Mouse.
Synonyms: Acomys (Acomys) albigena (Heuglin 1877); Acomys (Acomys) helmyi Osborn 1980; Acomys (Acomys) hunteri De Winton 1901; Acomys (Acomys) megalodus Setzer 1959; Acomys (Acomys) nubicus (Heuglin 1877); Acomys (Acomys) sabryi Kershaw 1922; Acomys (Acomys) viator Thomas 1902.
Distribution: NE Africa: Libya, Egypt (Osborn and Helmy, 1980), Sinai Peninsula (Saleh and Basuony, 1998), N Sudan, Ethiopia (identified by chromosomal traits; Sokolov et al., 1992, 1993), and Djibouti (Pearch et al., 2001); see Bates (1994); W and S distributional limits unresolved.
Conservation: IUCN – Lower Risk (lc).
Discussion: Subgenus Acomys. Musser and Carleton (1993) presented a broad definition of A. cahirinus that included some of the species listed here (airensis, chudeaui, dimidiatus and its synonyms, johannis and seurati) and had a geographic range extending from NW Africa to S Pakistan (as mapped by Bates, 1994, who followed Musser and Carleton, 1993). A growing body of published research, mostly by French scientists, has rendered Musser and Carleton’s view simplistic and an underestimate of the actual number of species. As currently understood, the geographic distribution of A. cahirinus centers in NE Africa, and the species is distinguished from A. airensis, A. chudeaui, A. dimidiatus, A. johannis, and A. seurati by dental characters (Denys et al., 1994), chromosomal traits (Volobouev et al., 1991, 1996, 2002 b; 2n = 36 for A. cahirinus, 2n from 38 to 68 for the other species), and mtDNA cytochrome b sequences (Barome et al., 2000, 2001 a, b); see accounts of those species.
Morphological and geographic definition of A. cahirinus remains incomplete; some of the taxa listed here as synonyms may belong to other species. El Ashmawy (1990), for example, documented different G- and C-banding patterns in cahirinus and hunteri from Egypt. Osborn and Helmy (1980), however, noted the ample evidence of intergradation between hunteri (described from NE Sudan) and cahirinus but no indication that hunteri intergrades with the more southern cineraceus. We provisionally include viator (type locality NC Libya) in the synonymy of A. cahirinus, but Osborn and Helmy (1980) recorded smaller measurements for that form in Egypt (occurs only in extreme SW corner of the country) compared with all the other samples of A. cahirinus, and Denys et al. (1994) described the molar morphology of viator as distinct from that of A. cahirinus. Ranck (1968) provided detailed descriptions of pelage and habitat for samples from Libya that he assigned to viator. Whether the latter represents the easternmost segment of A. cahirinus, is a separate species, or a population of some other Acomys (the Algerian seurati, for example) will have to be determined by cytogenetic, molecular, and additional morphological inquiries.
Setzer (1959:95) claimed melanistic A. cahirinus to be "almost exclusively commensal" or, if not actually caught in houses, collected in cultivated fields adjacent to villages. Osborn and Helmy (1980:298) noted that melanism is common in the Egyptian population "because it is the commonest mouse in buildings and houses. Some have been taken in gardens, date groves, and rocky hills and cliffs bordering the Nile Delta and Valley." The rat is also numerous in tombs and temples where the melanism becomes diluted.
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Book chapter: 10.5281/zenodo.7316535 (DOI)
- Book chapter: http://publication.plazi.org/id/A2267A57FF8A65DA07E1D2E970F9422A (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/FAD4A1E63CDCB5059D333A60EFB95441 (URL)
- https://www.gbif.org/species/231540009 (URL)
Biodiversity
- Family
- Muridae
- Genus
- Acomys
- Kingdom
- Animalia
- Order
- Rodentia
- Phylum
- Chordata
- Scientific name authorship
- E. Geoffroy
- Species
- cahirinus
- Taxon rank
- species
- Taxonomic concept label
- Acomys (Acomys) cahirinus (Geoffroy, 1803) sec. Wilson & Reeder, 2005
References
- Geoffroy Saint-Hilaire, E. 1803. Catalogue des mammiferes du Museum National d'Histoire Naturelle. Museum National d'Histoire Naturelle, Paris, 272 pp.
- Osborn, D. J., and I. Helmy. 1980. The contemporary land mammals of Egypt (including Sinai). Fieldiana: Zoology, 5: 1 - 579.
- Setzer, H. W. 1959. The spiny mice (Acomys) of Egypt. Journal of the Egyptian Public Health Association, 34 (3): 93 - 101.
- Saleh, M. A., and M. I. Basuony. 1998. A contribution to the mammalogy of the Sinai Peninsula. Mammalia, 62 (4): 557 - 575.
- Pearch, M. J., P. J. J. Bates, and C. Magin. 2001. A review of the small mammal fauna of Djibouti and the results of a recent survey. Mammalia, 65: 387 - 409.
- Musser, G. G., and M. D. Carleton. 1993. Family Muridae. Pp. 501 - 755, in: Mammal species of the world, a taxonomic and geographic reference, Second ed. (D. E. Wilson and D. M. Reeder, eds.). Smithsonian Institution Press, Washington D. C., xviii + 1206 pp.
- Denys, C., J. - C. Gautun, M. Tranier, and V. Volobouev. 1994. Evolution of the genus Acomys (Rodentia, Muridae) from dental and chromosomal patterns. Israel Journal of Zoology, 40: 215 - 246.
- Volobouev, V. T., M. Tranier, and B. Dutrillaux. 1991. Chromosome evolution in the genus Acomys: Chromosome banding analysis of Acomys cf. dimidiatus (Rodentia, Muridae). Bonner Zoologische Beitrage, 42: 253 - 260.
- Barome, P. - O., M. Monnerot, and J. - C. Gautun. 2000. Phylogeny of the genus Acomys (Rodentia, Muridae) based on the cytochrome b mitochondrial gene: Implications on taxonomy and phylogeography. Mammalia, 64 (4): 423 - 438.
- Barome, P. - O., P. Lymberakis, M. Monnerot, and J. - C. Gautun. 2001 a. Cytochrome b sequences reveal Acomys minous (Rodentia, Muridae) paraphyly and answer the question about the ancestral karyotype of Acomys dimidiatus. Molecular Phylogenetics and Evolution, 18 (1): 37 - 46.
- El Ashmawy, S. H. 1990. Karyotype of two Egyptian biotypes of spiny mice Acomys cahirinus and their hybrids. Egyptian Journal of Cytology, 19: 189 - 194.
- Ranck, G. L. 1968. The rodents of Libya: Taxonomy, ecology, and zoogeographical relationships. Bulletin of the United States National Museum, 275: 1 - 264.