Comments: Very closely related to and perhaps conspecific with M. bowdoini (see IUCN 1991); M. carlhubbsi was identified as M. bowdoini prior to the original description of M. carlhubbsi in 1963. Regarded by Orr as synonymous with M. stejnegeri. Jones et al. (1992), Rice (1998), and Mead and Brownell (in Wilson and Reeder 1993, 2005) recognized M. carlhubbsi, M. bowdoini, and M. stejnegeri as separate species.
No one has provided updates yet.