Zasoby i środowisko · 04/02/1994
Endangered and Threatened Wildlife and Plants; Proposed Endangered Status for the Callippe Silverspot Butterfly, Behren's Silverspot Butterfly, and the Alameda Whipsnake From Northern and Central California
The U.S. Fish and Wildlife Service proposes to list the Callippe Silverspot Butterfly, Behren's Silverspot Butterfly, and the Alameda Whipsnake as endangered under the Endangered Species Act of 1973.