| author | date | title | journal / publication | Karling TG | 1935 | Mitteilungen ueber Turbellarien aus dem Finnischen Meerbusen: 1. Dalyellia nigrifrons n. sp. 2. Promesostoma cochlearis n.sp. | Mem Soc Fauna Flora fenn 10:388-395 |
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| Dalyellia nigrifrons Karling, 1935 | w | primary taxonomic authority (describer) | ||
| Halammovortex nigrifrons (Karling, 1935) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Promesostoma cochleare Karling, 1935 | w | primary taxonomic authority (describer) | 391-395, figs. 1-3 | |
| Promesostoma bilineatum Pereyaslawzewa, 1892 | w | other research on this sp. |