1. De Haan, W. (1833–1850) Crustacea. In: von Siebold, P.F. (Ed.), Fauna Japonica sive Descriptio Animalium, quae in Itinere per Japoniam, Jußu et Auspiciis Superiorum, qui Summum in India Batava Imperium Tenent, Suscepto, Annis 1823–1830 Collegit, Notis, Observationibus et Adumbrationibus Illustravit. Apud Auctorem, Lugduni-Batavorum [Leiden], pp. I–XXX + I–XXXI + VII–XVII + 1–243 + VIII–XVI, tabs. I–LII + Circul. tab. 2 + Crustacea tabs A–P.
2. Gelder, S.R. (1987) Observations on three species of branchiobdellid (Annelida: Clitellata) worms from eastern Asia. Hydrobiologia, 155, 15–25. https://doi.org/10.1007/BF00025627
3. Gelder, S.R. (1996) A review of the taxonomic nomenclature and a checklist of the species of the Branchiobdellae (Annelida: Clitellata). Proceedings of the Biological Society of Washington, 109, 653–663.
4. Gelder, S.R. (2010) Re-description of the branchiobdellidan, Hidejiodrilus koreanus (Pierantoni, 1912), (Annelida: Clitellata), from the Republic of Korea, and the designation of a neotype and paraneotype specimens. Acta zoologica bulgarica, 62, 21–26.
5. Gelder, S.R. (2019) Subclass Branchiobdellida. In: Thorp, J.H. & Rogers, D.C. (Eds.), Thorp and Covich's Freshwater Invertebrates. Vol. 4. Key to Palaearctic Fauna. 4th Edition. Academic Press, London, pp. 483–491.