American crocodile (Crocodylus acutus)

Federal Register | Recovery | Critical Habitat | Conservation Plans | Petitions | Life History

Listing Status:    and  

General Information

A large lizard-shaped reptile, the crocodile closely resembles the alligator. Hatchlings are about 23 centimeters in length; adults may grow to 4.5 meters or larger. Florida crocodiles may be distinguished from alligators by their more slender build and their difference in snout shape. The crocodile's snout tapers forward from the eyes while the alligator's snout is untapered and rounded at the end. When the mouth is closed, the fourth tooth in the lower jaw is exposed in the crocodile but concealed in the alligator. The adult crocodile's diet includes fish, crabs, birds, turtles, snakes, and small mammals. The young feed chiefly on aquatic invertebrates and small fish. As a general rule crocodilians feed on any prey items which can be caught and overpowered.

Population detail

The FWS is currently monitoring the following populations of the American crocodile 

  • Population location: Entire, except U.S.A. (FL)

    Listing status:  Endangered

  • Population location: FL pop.

    Listing status:  Threatened

    • States/US Territories in which this population is known to or is believed to occur:  Florida
    • US Counties in which this population is known to or is believed to occur:  View All
    • USFWS Refuges in which this population is known to occur:  Archie Carr National Wildlife Refuge, Caloosahatchee National Wildlife Refuge, Crocodile Lake National Wildlife Refuge, Island Bay National Wildlife Refuge, J.N. 'Ding' Darling National Wildlife Refuge  ... Show All Refuges
    • Countries in which the this population is known to occur:  Belize, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Peru, United States, Venezuela
 
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
03/20/2007 Foreign (Headquarters) Entire, except U.S.A. (FL)
10/28/1975 Southeast Region (Region 4) FL pop.

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
04/21/1975 40 FR 17590 17591 Lists of Endangered and Threatened Fauna (10); 40 FR 17590 17591
09/22/1977 42 FR 47840 47845 Final Correction and Augumentation of Critical Habitat Reorganization; 42 FR 47840 47845
12/16/1975 40 FR 58308 58312 Proposed Determination of Critical Habitat for Snail Darter, American Crocodile, Whooping Crane, California Condor, Indiana Bat, and Florida Manatee; 40 FR 58308 58312 (Percina (Imostoma) sp., Crocodylus acutus, Grus americana, Gymnogyps californicus, Myotis sodalis, Trichechus manatus)
03/24/2005 70 FR 15052 15063 Proposed rule reclassifying the American Crocodile Distinct Population Segment in Florida From Endangered to Threatened and Initiation of a 5-Year Review.
04/02/2004 69 FR 17442 17443 Notice of Availability of a Technical/Agency Draft Implementation Schedule for the South Florida Multi-Species Recovery Plan
09/25/1975 40 FR 44149 44151 Lists of Endangered and Threatened Fauna; 40 FR 44149 44151
03/20/2007 71 FR 13027 13041 Reclassification of the American Crocodile Distinct Population Segment in Florida From Endangered to Threatened; Final rule.
12/18/1979 44 FR 75074 75076 ETWP; Listing With Endangered Status for the American Crocodile Throughout Its Range and the Saltwater Crocodile Exclusive of the Papua New Guinea Population.
09/24/1976 41 FR 41914 Determination of Critical Habitat for American Crocodile, California Condor, Indiana Bat, and Florida Manatee; 41 FR 41914 (American crocodile, Crocodylus acutus, California condor, Gymnogyps californianus; Indiana bat, Myotis sodalis; Florida manatee, Trichechus manatus)
03/26/2007 72 FR 14132 14133 Notice of Availability of a Final Implementation Schedule for the South Florida Multi-Species Recovery Plan
07/24/1979 44 FR 43442 43445 ETWP; Proposed Listing with Endangered Status for the American Crocodile Throughout Its Range and the Saltwater Crocodile Exclusive of the Papua New Guinea Population

» Recovery

Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
05/18/1999 South Florida Multi-Species Recovery Plan (68 spp.) View Implementation Progress Final
Other Recovery Documents
Date Citation Page Title Document Type
03/24/2005 70 FR 15052 15063 Proposed rule reclassifying the American Crocodile Distinct Population Segment in Florida From Endangered to Threatened and Initiation of a 5-Year Review.
  • Notice 5-year Review, Initiation
  • Proposed Reclassify, Downlist threatened
04/02/2004 69 FR 17442 17443 Notice of Availability of a Technical/Agency Draft Implementation Schedule for the South Florida Multi-Species Recovery Plan
  • Notice Draft Recovery Plan Availability
03/26/2007 72 FR 14132 14133 Notice of Availability of a Final Implementation Schedule for the South Florida Multi-Species Recovery Plan
  • Notice Recovery Plan Avail.

» Critical Habitat

Date Citation Page Title Document Type Status
09/22/1977 42 FR 47840 47845 Final Correction and Augumentation of Critical Habitat Reorganization; 42 FR 47840 47845 Final Rule Final designated
09/24/1976 41 FR 41914 Determination of Critical Habitat for American Crocodile, California Condor, Indiana Bat, and Florida Manatee; 41 FR 41914 (American crocodile, Crocodylus acutus, California condor, Gymnogyps californianus; Indiana bat, Myotis sodalis; Florida manatee, Trichechus manatus) Final Rule Not Required
12/16/1975 40 FR 58308 58312 Proposed Determination of Critical Habitat for Snail Darter, American Crocodile, Whooping Crane, California Condor, Indiana Bat, and Florida Manatee; 40 FR 58308 58312 (Percina (Imostoma) sp., Crocodylus acutus, Grus americana, Gymnogyps californicus, Myotis sodalis, Trichechus manatus) Proposed Rule Unknown

To learn more about critical habitat please see http://ecos.fws.gov/crithab

» Conservation Plans

No conservation plans have been created for American crocodile.

» Petitions

» 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.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.