| 1 | Massive, rounded or encrusting, bent spiny strongyles; rare oxeas regularly spiny | 2 |
| – | Massive, irregular; bent smooth strongyles | Swartschewskia irregularis (Swartschewsky, 1902) |
| 2 | Strongyles with spines in rosettes | Swartschewskia papyracea (Dybowski, 1880) |
| – | Strongyles with tubercles densely ornamented with simple spines | Swartschewskia khanaevi sp. nov. |
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