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Details for the U.S. Endangered Species Act

List of Endangered Species by Category

Note: all of these Species Groups link to the USFWS's Threatened and Endangered Species System (TESS).

Complete List (links to all animal groups in a single list). This is a very large pdf file (266.77 KB) that is a copy of 50 C.F.R. 17.11 et seq.

Federal Administrative Regulations for the ESA

Intro Material - Subpart A

Endangered Wildlife - Subpart C

Threatened Wildlife - Subpart D

Similarity of Appearance - Subpart E

Experimental Populations - Subpart H

Manatee Protection Areas - Subpart J

Marine Species, Generally - Part 222

Marine and Anadromous Species - Part 223

Interagency Cooperation - Part 402

Cooperation with the States - Part 81