| Specimen ID | 1757701 |
| Group | Mollusks-Bivalves |
| Genus | Pyganodon |
| Species | grandis |
| Common Name | giant floater |
| State | TX |
| County | Reeves |
| Locality | Billingslea Draw, near Toyah |
| Mapping Accuracy | Accurate |
| HUC8 Name | Salt Draw |
| HUC8 Number | 13070004 |
| HUC10 Name | Salt Draw-Toyah Lake |
| HUC10 Number | 1307000408 |
| HUC12 Name | 130700040805-Salt Draw |
| HUC12 Number | 130700040805 |
| Map | |
| Collection Year | 1982 |
| Year Accuracy | Estimated |
| Reference 1 |
| Ref. Number: | 44851 |
| Author: | Johnson, R.I. |
| Date: | 1999 |
| Title: | Unionidae of the Rio Grande (Rio Bravo Del Norte) system of Texas and Mexico |
| Journal: | Occasional Papers on Mollusks |
| Volume: | 6 |
| Issue: | 77 |
| Pages: | 1-67 |
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| Record Type | Literature |
