| Sinum planulatum | |
|---|---|
|   | |
| Illustration of juvenile (7–9) and adult (10–12) S. planulatum from Weinkauff. | |
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| Subclass: | Caenogastropoda | 
| Order: | Littorinimorpha | 
| Family: | Naticidae | 
| Genus: | Sinum | 
| Species: | S. planulatum  | 
| Binomial name | |
| Sinum planulatum (Récluz, 1843)  | |
| Synonyms [1] | |
  | |
Sinum planulatum, the flattened ear snail, is a species of sea snail, a marine gastropod mollusk in the family Naticidae, also known as the moon snails. [2]
The size of the shell varies between 22 and 33 mm (0.87 and 1.30 in).
|   | This section needs expansion. You can help by adding to it.  (March 2016)  | 
Sinum planulatum species occur off the coast of Tanzania and Mozambique.