Species Profile
Environmental Conservation Online System

Eastern Indigo snake (Drymarchon corais couperi)

Listing Status:   

Where Listed: WHEREVER FOUND

General Information

Average adult size is 60-74 inches (152-188 cm), record is 103.5 inches (262.8 cm). Adults are large and thick bodied. The body is glossy black and in sunlight has iridescent blue highlights. The chin and throat is reddish or white, and the color may extend down the body. The belly is cloudy orange and blue-gray. The scales on its back are smooth, but some individuals may possess some scales that are partially keeled. There are 17 dorsal scale rows at midbody. The pupil is round. Juveniles are black-bodied with narrow whitish blue bands.

Map of Species occurrence

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Map Image Map of Species occurrence Map of Species occurrence

This map represents our best available information about where a species is currently known to or or is believed to occur; however, it should NOT be used as an official species list for Section 7 Consultation purposes. To obtain an official species list for this purpose, please visit the Information, Planning, and Conservation (IPaC) System (click here: http://ecos.fws.gov/ipac)



This species is listed wherever it is found, but
    • States/US Territories in which the Eastern Indigo snake, Entire is known to or is believed to occur:  Alabama , Florida , Georgia
    • US Counties in which the Eastern Indigo snake, Entire is known to or is believed to occur:  View All
    • USFWS Refuges in which the Eastern Indigo snake, Entire is known to occur:  ARTHUR R. MARSHALL LOXAHATCHEE NATIONAL WILDLIFE REFUGE, CHASSAHOWITZKA NATIONAL WILDLIFE REFUGE, CROCODILE LAKE NATIONAL WILDLIFE REFUGE, FLORIDA PANTHER NATIONAL WILDLIFE REFUGE, HOBE SOUND NATIONAL WILDLIFE REFUGE  ... Show All Refuges
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
03/03/1978 Southeast Region (Region 4) Entire

» Federal Register Documents

Most Recent Federal Register Documents (Showing 3 of 3)
Date Citation Page Title
09/08/2006 71 FR 53127 53129 Endangered and Threatened Wildlife and Plants; 5-Year Review of 14 Southeastern Species
01/31/1978 43 FR 4026 4029 Final Determination of Threatened Status for the Eastern Indigo Snake
08/01/1977 42 FR 38921 38924 Proposed Threatened Status for Eastern Indigo Snake; 42 FR 38921 38924 (Dyrmarchon corais couperi)

» Action Plans

Action Plans (Showing 1 of 1)
Date Title
10/01/2009 Eastern Indigo Snake Spotlight Species Action Plan

» Recovery

Recovery Plan Information Search
Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
04/22/1982 Eastern Indigo Snake View Implementation Progress Final
Other Recovery Documents (Showing 1 of 1)
Date Citation Page Title Document Type
09/08/2006 71 FR 53127 53129 Endangered and Threatened Wildlife and Plants; 5-Year Review of 14 Southeastern Species
  • Notice 5-year Review, Initiation
  • Five Year Review
    Date Title
    04/29/2008 Eastern Indigo Snake 5-Year Review

    » Critical Habitat

    No critical habitat rules have been published for the Eastern Indigo snake, Entire.

    » Conservation Plans

    Habitat Conservation Plans (HCP) (learn more) (Showing 5 of 20: view all)
    HCP Plan Summaries
    Atlantis at Tequesta
    Big Pine Key Deer
    Cavalear Co. (Cloisters)
    City of Palm Bay
    Heron's Cove
    Safe Harbor Agreements (SHA): (learn more) (Showing 1 of 1)
    SHA Plan Summaries
    GA DNR Statewide RCW HCP & SHA - Amendment #2

    » Petitions

    No petition findings have been published for the Eastern Indigo snake, Entire.

    » Life History

    No Life History information has been entered into this system for this species.

    » Other Resources

    NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

    ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

    Last updated: September 30, 2014