| Acrilla semicostata | |
|---|---|
| | |
| Shell of † Acrilla semicostata (specimen at MNHN, Paris) | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Superfamily: | Epitonioidea |
| Family: | Epitoniidae |
| Genus: | Acrilla |
| Species: | †A. semicostata |
| Binomial name | |
| †Acrilla semicostata (J. Sowerby, 1814) | |
| Synonyms | |
| |
Acrilla semicostata is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps. [1]
(Original description) The seven whorls are contiguous. The spire is transversely striated with numerous, slightly raised ribs. The lower part of each whorl is smooth and naked. The ribs scarcely cover two-thirds of each whorl. [2]
Fossils of this marine species have been found in Eocene strata in Val-d'Oise, France and in Barton on Sea, Great-Britain.
Crassispira is a genus of small predatory sea snails with narrow, high-spired shells, marine gastropod mollusks in the family Pseudomelatomidae. They first appeared in the fossil record approximately 48.6 million years ago during the Eocene epoch, and still exist in the present day.
Conus magus, common name the magical cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Cyrillia linearis is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
The mangrove murex is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Hexaplex duplex is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Vaughtia scrobiculata is a species of sea snail, a marine gastropod mollusc in the family Muricidae, the murex snails or rock snails.
Harpa amouretta, common name the lesser harp, is a species of sea snail, a marine gastropod mollusk in the family Harpidae, the harp snails.
Tonna tessellata, the mosaic tun, tessellate tun or maculated tun, is a species of large sea snail, a marine gastropod mollusk in the family Tonnidae.
Alvania beanii is a species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Eulima glabra is a species of small parasitic sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of a number within the genus Eulima.
Acrilla is a genus of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae. They are commonly known as wentletraps.

Acrilla minor is a species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla affinis is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla lamberti is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla gallica is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.

Acrilla deslongchampsi is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla fayellensis is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla grignonensis is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla perangusta is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla reticulata is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.