Nephelomys keaysi (Allen, 1900)

Moreira, Camila Do Nascimento, Ventura, Karen, Percequillo, Alexandre Reis & Yonenaga-Yassuda, Yatiyo, 2020, A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes, Zootaxa 4876 (1), pp. 1-111 : 46

Nephelomys keaysi

Karyotype: 2n = 80 and FN = 92. Autosomal complement: seven medium to small metacentric and submetacentric pairs, and 32 acrocentric pairs large to small decreasing in size. Sex chromosomes: X, a very large subtelocentric; Y, a small acrocentric ( Gardner & Patton 1976, pp. 4, Fig. 1C ).

Figures

FIGURE 1. Collection localities of Oryzomyini species analyzed in this work. (1) Claúdia, Mato Grosso state; (2) and (3) Rio Japurá, Amazonas state; (4) and (5) Rio Içá, Amazonas state.