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SPECIES Calomys tocantinsi

Author:Bonvicino, Lima, and Almeida, 2003.
Citation:Rev. Bras. Zool., 20: 301.
Common Name:Tocantins Laucha
Type Locality:Brazil, Tocantins State, 33 km SW Formoso do Araguaia, Rancho Beira Rio; 1147′S, 4945′W.
Distribution:Cerrado habitat, states of Mato Grosso and Tocantins, C Brazil.
Comments:A large species, similar in size to C. callosus and C. expulsus but morphometrically and karyotypically (2n = 46, FN = 66) well differentiated from those species and from C. tener (Bonvicino et al., 2003c). The new form was first detected based on its distinctive karyotype (Lima and Kasahara, 2001).
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