Marisa cornuarietis
Marisa cornuarietis
(giant ramshorn)
Mollusks-Gastropods
Exotic
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7 results for Marisa cornuarietis (giant ramshorn)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1697958 TXComal[No locality description provided]2015 12100202 Middle Guadalupe 
1699757 TXComal[No locality description provided]2020 12100202 Middle Guadalupe 
1746684 TXComal[No locality description provided]2021 12100202 Middle Guadalupe 
50411 TXComalComal River1991 12100202 Middle Guadalupecollected
1634592 TXComalComal River, Landa Park, Texas1984 12100202 Middle Guadalupeestablished
1634593 TXComalComal Springs, Comal River Texas1992 12100202 Middle Guadalupeestablished
1524552 TXComalLanda Lake (headwaters of the Comal River)2018 12100202 Middle Guadalupeunknown

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.

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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 [1/27/2025].

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