Acomys (Acomys) johannis Thomas 1912

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Muridae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 1189-1531 : 1197

publication ID

https://doi.org/ 10.5281/zenodo.7316535

DOI

https://doi.org/10.5281/zenodo.11358042

persistent identifier

https://treatment.plazi.org/id/4E4786E0-C8FA-6E3A-9564-FCF4C7C8528B

treatment provided by

Guido

scientific name

Acomys (Acomys) johannis Thomas 1912
status

 

Acomys (Acomys) johannis Thomas 1912 View in CoL

Acomys (Acomys) johannis Thomas 1912 View in CoL , Ann. Mag. Nat. Hist., ser. 8, 9: 272.

Type Locality: N Nigeria, Bauchi Plateau Kabwir ( Rosevear, 1969, provided more information about holotype and origin of common name).

Vernacular Names: Johan's Spiny Mouse.

Distribution: Burkina Faso, S Niger, Nigeria, N Benin, and N Cameroon; limits of geographic range unresolved.

Discussion: Subgenus Acomys . Formerly included in A. cahirinus ( Setzer, 1975) or A. cineraceus ( Musser and Carleton, 1993) . Recently, Sicard and Tranier (1996) provided a detailed report on the geographic distribution of three pelage color phenotypes of Acomys occurring in Burkina Faso (all with 2n = 66 or 68; also see Gautun et al., 1986), assigned them to A. johannis , and contrasted their external, cranial, and dental morphology with A. chudeaui (2n = 42), A. airensis (2n = 40 to 46) and the Algerian A. seurati (2n = 38). Using mtDNA cytochrome b sequences, Barome et al. (2000) identified the specimens from Burkina Faso as Acomys sp. and specimens from Niger, Benin, Cameroon, and Niger as A. johannis . This species is a member of the A. cahirinus-A. dimidiatus group ( Barome et al., 2000) and different from either A. cahirinus or A. cineraceus , but it needs to be more clearly diagnosed and its geographic range delineated.

Sicard and Tranier (1996) were impressed with the close similarity in cranial and dental traits between A. johannis from Burkina Faso and A. mullah from Ethiopia and Somalia. This observation may be significant because Sokolov et al. (1992, 1993) karyotyped specimens of Acomys from the Ethiopian Rift Valley. Several samples characterized as 2n = 36 were determined to be A. cahirinus , and another sample with 2n = 68 was identified only as Acomys sp. If the latter is A. mullah , which occurs in Ethiopia, it would corroborate the morphological alliance suggested by Sicard and Tranier. In addition to A. cahirinus and A. mullah , only A. cineraceus (2n = 48 or 50; Kunze et al., 1999 a, b), A. wilsoni (2n = 50; Matthey, 1968), and A. percivali (karyotype unknown) have been recorded from Ethiopia.

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Muridae

Genus

Acomys

Loc

Acomys (Acomys) johannis Thomas 1912

Wilson, Don E. & Reeder, DeeAnn 2005
2005
Loc

Acomys (Acomys) johannis

Thomas 1912: 272
1912
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