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Puerto Refugio, Baja California, Estado de Mexico, Mexico
latitude: 29.5667
longitude: -113.566704
Precision of location: Alexandria Digital Library (with NGA GNDB data)
Site Named Here: By name of site (or city, etc.)
| Zygantroplana stylifera | Apr 2-3, 1940 | intertidal | rock | Collected by Ricketts rocky littoral. Hyman notes that Ricketts referred to this species as Stylochoplana plenhi. |
| Prosthiostomum multicelis | Jan 27, 1940 | taken by the Allan Hancock Foundation, shore collecting. | ||
| Alleena mexicana | Jan 1940 |