| author | date | title | journal / publication | Bock S | 1923 | Eine neue marine Turbellariengattung aus Japan. | Uppsala Universitets Arsskr Mat Och Nat 1: 1-52 |
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| Alvaera sarsi (Jensen, 1878) | w | latest taxonomic authority | ||
| Prosopharyngida Hofsteniidae Bock, 1923 | w | primary taxonomic authority (describer) | ||
| Hofsteniidae Hofstenia Bock, 1923 | w | primary taxonomic authority (describer) | ||
| Hofstenia atroviridis Bock, 1923 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomidae Alvaera Bock, 1923 | w | primary taxonomic authority (describer) |