| Demoulia | |
|---|---|
| Two shells of Demoulia abbreviata (museum specimens at Naturalis Biodiversity Center) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Nassariidae |
| Subfamily: | Nassariinae |
| Genus: | Demoulia Gray, 1838 |
| Type species | |
| Buccinum retusum Lamarck, 1822 | |
| Synonyms | |
| |
Demoulia is a genus of sea snails, marine gastropod mollusks in the family Nassariidae, the Nassa mud snails or dog whelks.
The ovate-globose shell is covered with a downy epidermis. The spire is short, conical with a papillary apex. The whorls are depressed. The aperture is ovate. The inner lip is thickened, with a ridge posteriorly. The outer lip is contracted, thickened externally and plicated internally.
Species within the genus Demoulia include: