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

23 results for Pomacea maculata (giant applesnail)
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Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1744870 TXBexar[No locality description provided]2020 12100301 Upper San Antonio 
1889314 TXBexar[No locality description provided]2025 12100301 Upper San Antonio 
1895011 TXBexar[No locality description provided]2025 12100301 Upper San Antonio 
1703771 TXBexarBud Lake in San Antonio, TX2022 12100301 Upper San Antonioestablished
1758498 TXBexarDowntown reach of San Antonio River2022 12100301 Upper San Antonioestablished
1758499 TXBexarMuseum Reach, San Antonio River2022 12100301 Upper San Antonioestablished
1737059 TXBexarRiverwalk diversion off N Presa st, San Antonio, TX2024 12100301 Upper San Antonio 
1703766 TXBexarSan Antonio River2022 12100301 Upper San Antonioestablished
1713041 TXBexarSan Antonio River2023 12100301 Upper San Antonio 
1658623 TXBexarSan Antonio River downstream of Alamo St. dam, San Antonio, TX2021 12100301 Upper San Antonioestablished
1658622 TXBexarSan Antonio River downstream of Blue Star complex, San Antonio, TX2021 12100301 Upper San Antonioestablished
1649680 TXBexarSan Antonio River East of Johnson Street2020 12100301 Upper San Antonioestablished
1633920 TXBexarSan Antonio River from E. Josephine St. to South Alamo St.2020 12100301 Upper San Antonioestablished
1653600 TXBexarSan Antonio River just north of Lone Star Boulevard, San Antonio, TX, Bexar County2020 12100301 Upper San Antonioestablished
1737063 TXBexarSan Antonio River mission reach off Espada Park, San Antonio, TX2024 12100301 Upper San Antonio 
1653575 TXBexarSan Antonio River near flood control structures2020 12100301 Upper San Antonioestablished
1653601 TXBexarSan Antonio River outlet of the Flood Control Outlet Tunnel Park, San Antonio, TX, Bexar County2020 12100301 Upper San Antonioestablished
1653602 TXBexarSan Antonio River riverwalk between East Guenther and Alamo Streets, San Antonio, TX, Bexar County2020 12100301 Upper San Antonioestablished
1687287 TXBexarSan Antonio River, at the edge of the riverwalk near the brewery2020 12100301 Upper San Antonioestablished
1632852 TXBexarSan Antonio River, downtown San Antonio2019 12100301 Upper San Antonioestablished
1657986 TXBexarSan Antonio Riverwalk2021 12100301 Upper San Antonioestablished
1692269 TXBexarSan Antonio Riverwalk2021 12100301 Upper San Antonioestablished
1695538 TXBexarUnnamed lake, San Antonio, TX2022 12100301 Upper San Antonioestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/20/2026].

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