| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Sinum bifasciatum (Récluz, 1851) |
Mediterranean Sea | ||
| Sinum concavum (Lamarck, 1822) |
Concave baby's car | Eastern Atlantic | |
| Sinum cymba (Menke, 1828) |
Southeast Pacific | ||
| Sinum debile (Gould, 1853) |
Slight baby ear | East Pacific | |
| Sinum haliotoideum (Linnaeus, 1758) |
Western Pacific | ||
| Sinum incisum (Reeve, 1864) |
Northwest Pacific | ||
| Sinum japonicum (Lischke, 1872) |
Northwest Pacific | ||
| Sinum javanicum (Gray, 1834) |
Northwest Pacific | ||
| Sinum maculatum (Say, 1831) |
Brown baby ear | Western Atlantic | 3.5 |
| Sinum minus (Dall, 1889) |
Dwarf baby ear | Western Central Atlantic | 1.3 |
| Sinum perspectivum (Say, 1831) |
White baby ear | Western Atlantic | 5.1 |
| Sinum scopulosum (Conrad, 1849) |
Fat baby ear | East Pacific |