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Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
| site | collection date | depth | substrate | salin | locality kind | comments | reference | |
|---|---|---|---|---|---|---|---|---|
| A | southwestern shore, Bahia de Bacochibampo, near Guayas, Sonora, Mexico | Aug 1971 | 1 m | clean, medium fine quartz sand | type locality | collected at low water. holotype AMNH 821, three paratypes AMNH 822-824. | Crezee M (1975) 784 |