Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Endangered, Threatened, and Special Concern Species Listed by Taxonomic Group

Species are categorized as being Endangered (E), Threatened (T), or Special Concern (SC) within each  taxonomic group. The lists are alphabetized by the species' scientific name.

Amphibians

Birds

Fish

Invertebrates

Mammals

Plants

Reptiles