Specimen Information

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

Specimen ID1649717
GroupMollusks-Gastropods
GenusPomacea
Speciesmaculata
Common Namegiant applesnail
LocalitySan Antonio River at South Alamo Street bridge
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 Day19
Collection Month5
Collection Year2020
Year AccuracyActual
Potential Pathwaydispersed | released aquarium | hitch hiker on aquatic plants
Statusunknown
Commentscitizen science report via Texasinvasives.org
Record TypeNAS sighting report
VerifierMonica McGarrity, TPWD
Freshwater/MarineFreshwater
Number Collected1 egg mass
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 [12/5/2025].

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.