| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Syntomodrillia | peggywilliamsae | 2 |
| 2 | Syntomodrillia | lissotropis | 2 |
| 3 | Syntomodrillia | bermudensis | 1 |
| 4 | Syntomodrillia | curacaoensis | 1 |
| 5 | Syntomodrillia | carolinae | 1 |
| 6 | Syntomodrillia | cookei | 1 |
| 7 | Syntomodrillia | floridana | 1 |
| 8 | Syntomodrillia | harasewychi | 1 |
| 9 | Syntomodrillia | hesperia | 1 |
| 10 | Syntomodrillia | hypsela | 1 |
| 11 | Syntomodrillia | woodringi | 1 |
| 12 | Syntomodrillia | lyra | 1 |
| 13 | Syntomodrillia | mellea | 1 |
| 14 | Syntomodrillia | portoricana | 1 |
| 15 | Syntomodrillia | pusilla | 1 |
| 16 | Syntomodrillia | socolatea | 1 |
| 17 | Syntomodrillia | stahlschmidti | 1 |
| 18 | Syntomodrillia | trinidadensis | 1 |
| 19 | Syntomodrillia | vitrea | 1 |
| 20 | Syntomodrillia | triangulos | 1 |