Specimen Information

Pomacea maculata
Pomacea maculata
(giant applesnail)
Mollusks-Gastropods
Exotic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

Specimen ID1649680
GroupMollusks-Gastropods
GenusPomacea
Speciesmaculata
Common Namegiant applesnail
StateTX
CountyBexar
LocalitySan Antonio River East of Johnson Street
Mapping AccuracyAccurate
HUC8 NameUpper San Antonio
HUC8 Number12100301
HUC10 NameHeadwaters San Antonio River
HUC10 Number1210030102
HUC12 NameOlmos Creek-San Antonio River
HUC12 Number121003010201
Map
Collection Day30
Collection Month5
Collection Year2020
Year AccuracyActual
Potential Pathwaydispersed | released aquarium | hitch hiker on aquatic plants
Statusestablished
Commentscitizen science report
Record TypeNAS sighting report
VerifierMonica McGarrity, TPWD
Freshwater/MarineFreshwater
Number Collected2
Photo
Pomacea maculata

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/10/2025].

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 general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.