| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Spilochlamys conica Thompson, 1968 |
Conical siltsnail | East Pacific | |
| Spilochlamys gravis Thompson, 1968 |
Armored siltsnail | North America | |
| Spilochlamys turgida Thompson, 1969 |
Pumpkin siltsnail | North America |