Specimen Information

Alligator mississippiensis
Alligator mississippiensis
(American alligator)
Reptiles-Crocodilians
Native Transplant

Specimen ID1548399
GroupReptiles-Crocodilians
GenusAlligator
Speciesmississippiensis
Common NameAmerican alligator
StateIL
CountyCook
LocalityHumboldt Park, Chicago, IL
Mapping AccuracyAccurate
HUC8 NameChicago
HUC8 Number07120003
HUC10 NameNorth Branch Chicago River-Chicago Sanitary and Ship Canal
HUC10 Number0712000301
HUC12 NameLower Branch Chicago River
HUC12 Number071200030106
Map
+
Collection Day12
Collection Month7
Collection Year2019
Year AccuracyActual
Potential Pathwayreleased pet
Statusfailed
Reference 1
Ref. Number:33407
Author:Held, A.
Date:2019
Title:An Alligator surfaces at a Chicago lagoon and a city snaps to attention
Publisher:NPR
Reference 2
Ref. Number:33425
Author:Serrano, A. and J. Anderson
Date:2019
Title:Alligator in Chicago’s Humboldt Park Lagoon caught overnight
Publisher:Chicago Tribune
CommentsNicknamed "Chance the Snapper." Captured 7/16/19.
Record TypeLiterature
Freshwater/MarineFreshwater
Number Collected1
Size5'3"


Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/24/2021].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.