Sommeromys Musser and Durden 2002

Sommeromys Musser and Durden 2002, Am. Mus . Novit., 3368: 4.

Type Species: Sommeromys macrorhinos Musser and Durden 2002

Species and subspecies: 1 species:

Species Sommeromys macrorhinos Musser and Durden 2002

Discussion: Crunomys Division. Monotypic and represented only by the holotype. Morphology of skin, skull, dentition, and stomach described and contrasted with other murines, particularly the Sulawesian shrew rats ( Melasmothrix, Tateomys, and Echiothrix) and Sulawesi and Philippine shrew mice ( Crunomys) by Musser and Durden (2002). Certain derived cranial osteological and cephalic arterial complexes suggest affinity with Crunomys; otherwise, Sommeromys has no close morphological or phylogenetic affinity with any other described Sulawesian endemic. It may be a highly specialized relict of a group that diverged early from the Miocene Progonomys like murine ancestral stock.