Superorder OPISTHOBRANCHIA
Statistics for OPISTHOBRANCHIA
| Families | 75 |
|---|---|
| Genera | 250 |
| Subgenera | 0 |
| Genus synonyms | 311 |
| Species | 1402 |
| Subspecies | 1 |
| Species synonyms | 1759 |
| Incertae sedis | 0 |
| Species inquirenda | 0 |
| Aggregate genera | 0 |
| Aggregate species | 0 |
| Unplaced | 6 |
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