Designation of Critical Habitat for the Sonoma County Distinct Population Segment of the California Tiger Salamander (Ambystoma californiense: Proposed rule; revision and reopening of comment period.

We, the U.S. Fish and Wildlife Service, announce the reopening of the comment period on our August 18, 2009, proposed designation of critical habitat for the Sonoma County Distinct Population Segment of the California tiger salamander (Ambystoma californiense) under the Endangered Species Act of 1973, as amended. We also announce revisions to the proposed critical habitat unit. In this revised proposal, we add 4,945 ac (2,001 ha) to the proposed critical habitat unit in the general area of Roblar Road, based on peer review and other information submitted in the previous public comment period. In total, we are proposing to designate approximately 55,800 acres (ac) (22,580 hectares (ha)) of land as critical habitat for the Sonoma California tiger salamander. We are reopening the comment period to allow interested parties an opportunity to comment on the revised proposed critical habitat. Comments previously submitted need not be resubmitted and will be fully considered in preparation of the final rule.