| Douglassia | |
|---|---|
 | |
| Shell of Douglassia enae (specimen at MNHN, Paris) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Drilliidae |
| Genus: | Douglassia Bartsch, 1934 |
| Type species | |
| Douglassia enae Bartsch, 1934 | |
| Species | |
See text | |
Douglassia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae. [1] [2]
(Original description) The shell is of medium size. The whorls in the protoconch are well rounded and smooth. The postnuclear whorls show a broad concave area immediately below the summit, across which the axial ribs do not extend. The rest are convex. The base of the shell is rather short. The columella is short and shows a feeble fasciole. The aperture is rather large, deeply channeled anteriorly and posteriorly, the posterior channel being immediately below the summit. The stromboid notch is conspicuously reflected. The columellar wall is reflected as a heavy callus. The parietal wall shows a heavy callus that forms a knob at the exterior angle. The sculpture consists of strong axial ribs that extend from the anterior limit of the concave area, where they are strongest over the base, growing feebler anteriorly. Fine incremental lines are also present on the ribs and in the intercostal spaces. The body of the whorls is marked by fine spiral lirations, while the columella has strong spiral cords. [3]
Species within the genus Douglassia include:
The Drilliidae are a taxonomic family of small predatory sea snails with high-spired shells. They are classified as marine gastropod mollusks in the superfamily Conoidea.
Fusiturricula fenimorei, common name Fenimore's turrid, is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Toxiclionella haliplex is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.
Polystira florencae is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.
Compsodrillia disticha is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Compsodrillia nana is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Compsodrillia petersoni is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Agladrillia benjamini is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Cerodrillia thea is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Clavus johnsoni, common name Johnson's turrid, is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Douglassia enae is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Drillia lignaria is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Fenimorea janetae, common name Janet's turrid, is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Leptadrillia loria is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Leptadrillia splendida is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Fenimorea is a genus of carnivorous sea snails, marine gastropod mollusks in the family Drilliidae.
Buchema is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae.
Ividella navisa is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. The species is one of a number within the genus Chrysallida.
Darbya lirai is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.
Zebinella allemani is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.
