| Specimen ID | 1524552 |
| Group | Mollusks-Gastropods |
| Genus | Marisa |
| Species | cornuarietis |
| Common Name | giant ramshorn |
| State | TX |
| County | Comal |
| Locality | Landa Lake (headwaters of the Comal River) |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Guadalupe |
| HUC8 Number | 12100202 |
| HUC10 Name | Comal River-Guadalupe River |
| HUC10 Number | 1210020201 |
| HUC12 Name | Dry Comal River-Guadalupe River |
| HUC12 Number | 121002020106 |
| Map | |
| Collection Day | 24 |
| Collection Month | 8 |
| Collection Year | 2018 |
| Year Accuracy | Actual |
| Potential Pathway | released aquarium |
| Status | unknown |
| Record Type | NAS sighting report |
| Verifier | R. Burks |
| Freshwater/Marine | Freshwater |
