Reithrodontomys (Aporodon) microdon Merriam 1901

Reithrodontomys (Aporodon) microdon Merriam 1901, Proc. Wash. Acad. Sci., 3: 548.

Type Locality: Guatemala, Huehuetenango Dept., Todos Santos, 10,000 ft (3048 m).

Vernacular Names: Small-toothed Harvest Mouse.

Synonyms: Reithrodontomys (Aporodon) albilabris Merriam 1901; Reithrodontomys (Aporodon) wagneri Hooper 1950 .

Distribution: Isolated pockets in highlands of N Michoacán and Distrito Federal, N Oaxaca, and C and S Chiapas (see Espinosa M. et al., 1999 a), México, and WC Guatemala.

Conservation: IUCN – Lower Risk (nt).

Discussion: Subgenus Aporodon, tenuirostris species group. Included forms doubtfully conspecific; e.g., in cladistic reconstructions based on allozymic data, Guatemalan and Mexican samples of R. microdon are paraphyletic with respect to R. tenuirostris (Arellano et al., 2003) .