| author | date | title | journal / publication | Silliman WA | 1881 | abs. | Sur un nouveau type de Turbellariés. | Comp. rend. Acad. sc. Paris. Tom. 93: 1087-1089. 1881(1882). |
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| Umagillinae Syndesmis Silliman, 1881 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Syndesmis echinorum Silliman, 1881 | w | primary taxonomic authority (describer) |