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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 | Island of São Sebastião (Ilha de Sebastiao), Brazil | Nov 1952 | brackish to almost fresh | type locality | under mangroves in humic, almost fresh, water smelling of hydrogen sulfide. Found with Stenostomum amphotum, diatoms, copepods, Hydrobiinae, algae (chiefly Euglenoidina) that are eaten by the worms. | Marcus Er (1954) 434, 481 |