[5] Covert, A. B., in History of Washtenaw County, p. 194, 1881.
Hypothetical List
The mammals included in this list have been reported as occurring in Washtenaw County, but I can find no specimens with authentic data nor descriptions satisfactory for identification, and consider the records doubtful.
Rattus rattus rattus. Black Rat.—Covert[6] states that the species is "very rare. I have but one specimen, which was caught at the Michigan Central R. R. Depot."
[6] Covert, A. B., in History of Washtenaw County, pp. 193-194, 1881.
Mustela allegheniensis. Least Weasel.—Covert says, "The only specimens of this mammal I have had were brought in this winter" (1881). I have not been able to find these specimens, which were doubtless small females of Mustela noveboracensis.