| Specimen ID | 50411 |
| Group | Mollusks-Gastropods |
| Genus | Marisa |
| Species | cornuarietis |
| Common Name | giant ramshorn |
| State | TX |
| County | Comal |
| Locality | Comal River |
| Mapping Accuracy | Approximate |
| HUC8 Name | Middle Guadalupe |
| HUC8 Number | 12100202 |
| Map | |
| Collection Year | 1991 |
| Year Accuracy | Actual |
| Potential Pathway | released aquarium |
| Status | collected |
| Reference 1 |
| Ref. Number: | 360 |
| Author: | Howells, R.G. |
| Date: | 1992 |
| Title: | Annotated list of non-native fishes, mollusks, crustaceans, and aquatic plants, in Texas waters. Management Data Series No. 78. |
| Publisher: | Texas Parks and Wildlife Department |
| Pages: | 19 p. |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
