FWS announced a 90-day finding and 12-month determination on a petition to revise critical habitat for the leatherback sea turtle in the waters off Puerto Rico; the agency found that revision may be warranted.

FWS proposed to list 23 species on the island of Oahu in the Hawaiian Islands as endangered under the ESA, to designate 43,491 acres as critical habitat for these species and two other plant species already listed as endangered, and to revise critical habitat for 99 plant species already listed as endangered or threatened.

FWS announced a 12-month finding on a petition to list the Redrock stonefly as endangered or threatened and to designate critical habitat under the ESA; the agency found that listing is not warranted.

FWS announced a 90-day finding on a petition to list the straight snowfly and the Idaho snowfly as endangered under the ESA and to designate critical habitat for the species; the agency found that listing is not warranted.

FWS proposed to list the Chupadera springsnail as endangered under the ESA and to designate approximately 1.9 acres in Socorro County, New Mexico, as critical habitat for the species.

FWS announced a 90-day finding on a petition to list the American eel as threatened under the ESA; the agency found that listing may be warranted and initiated a status review. 

FWS designated approximately 47,383 acres in Sonoma County, California, as critical habitat for the distinct population segment of the California tiger salamander under the ESA. 

FWS removed the Lake Erie watersnake from the list of endangered and threatened wildlife under the ESA due to its recovery.

FWS determined endangered status under the ESA for six foreign birds found on islands in French Polynesia and in Africa, Europe, and Southeast Asia.

FWS issued an emergency rule listing the Miami blue butterfly in the Florida Keys as endangered under the ESA, and listing the cassius blue butterfly, the ceraunus blue butterfly, and the nickerbean blue butterfly as threatened due to their similarity of appearance.