English
Species (27)
Ptychocylis urnula Claparède & Lachmann- Ptychocylis calyx
- Ptychocylis glacialis
- Ptychocylis obtusa ssp. obtusa
- Ptychocylis urnula Claparède & Lachmann ssp. urnula
- Ptychocylis obtusa ssp. acuta
- Ptychocylis obtusa ssp. arctica
- Ptychocylis obtusa ssp. typica
- Ptychocylis obtusa ssp. cylindrica
- Ptychocylis obtusa ssp. drygalskyi
- Ptychocylis obtusa ssp. duplicata
- Ptychocylis urnula ssp. minor
- Ptychocylis urnula ssp. digitalis
- Ptychocylis urnula ssp. major
- Ptychocylis wailesi Kofoid & Campbell 1929
- Ptychocylis acuta Brandt 1896
- Ptychocylis amphorella Meunier ?
- Ptychocylis arctica Brandt 1896
- Ptychocylis basicurvata Meunier 1906
- Ptychocylis galcialis Meunier 1910
- Ptychocylis obtusa Brandt 1896
- Ptychocylis drygalskii Brandt 1896
- Ptychocylis minor Jörgensen 1899
- Ptychocylis cylindrica Meunier 1910
- Ptychocylis ostenfeldi Kofoid & Campbell 1929
- Ptychocylis repanda Wailes 1925
- Ptychocylis urnula Claparède & Lachmann 1858
