| Kingdom | Phylum | Order | Family |
|---|---|---|---|
| Animalia | Gastrotricha | Macrodasyida | Thaumastodermatidae |
| Rank | Scientific name | Taxonomic status |
|---|---|---|
| species | Ptychostomella bergensis Clausen, 1996 | accepted |
| species | Ptychostomella brachycephala (Lévi, 1954) | accepted |
| species | Ptychostomella helana Roszczak, 1939 | accepted |
| species | Ptychostomella higginsi Clausen, 2004 | accepted |
| species | Ptychostomella jejuensis Lee, Hwang & Chang, 2009 | accepted |
| species | Ptychostomella lamelliphora Todaro, 2013 | accepted |
| species | Ptychostomella lepidota Clausen, 2000 | accepted |
| species | Ptychostomella mediterranea Remane, 1927 | accepted |
| species | Ptychostomella ommatophora Remane, 1927 | accepted |
| species | Ptychostomella orientalis Lee & Chang, 2003 | accepted |
| species | Ptychostomella papillata Lee & Chang, 2003 | accepted |
| species | Ptychostomella pectinata Remane, 1926 | accepted |
| species | Ptychostomella tyrrhenica Hummon, Todaro & Tongiorgi, 1993 | accepted |
Ptychostomella Remane, 1926. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-23.