Cockrum's Gray Shrew – Notiosorex cockrumi

Notiosorex cockrumiBaker, O'Neill, and McAliley, 2003

Accepted name, Mammal Species of the World 2005

"A cryptic species indentified on the basis of cytochrome b gene fragments. Carraway and Timm (2000) included this new taxon in crawfordi and stated that they ""found no identifyable morphological differences."" Sympatric with crawfordi in SE Arizona. A karyotype of 2n = 62, FN = 94 reported earlier from Pima County, Arizona (Baker and Hsu, 1970), may refer to this species, while 2n= 68 and FN = 102 may refer to crawfordi. Molecular data also indicate that a third species occurs in Baja California (Baker et al., 2003a)."

• Wilson, D and Reeder, D. (eds.) 2005. Mammal Species of the World. A Taxonomic and Geographic Reference. 3rd ed. -- 2142 pp. Johns Hopkins University Press.