| Eucithara | |
|---|---|
| Shell of Eucithara vexillum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Mangeliidae |
| Genus: | Eucithara Fischer, 1883 |
| Type species | |
| Mangelia stromboides Reeve, 1846 | |
| Species | |
|
See text | |
| Synonyms | |
|
Mangilia (Eucithara) P. Fischer, 1883 (original rank) | |

Eucithara is a genus of small to quite large sea snails, marine gastropod mollusks in the family Mangeliidae.
This genus has been a convenient dumping ground for many Indo-Pacific species. A profound study is still lacking and polyphyly probably occurs, as shown by the radulae of the few species examined.
Species in this genus show a rather solid turreted-fusiform shell, sculptured by bold longitudinal ribs, over-run by dense spiral threads, and decussated by an even finer radial striatum. The aperture is as long, or longer, than the spire, fortified externally by a stout varix which ascends the previous whorl, includes a semi-circular sinus, and extends a free edge over the mouth. Within the outer lip are a series of short entering ridges, and the columella bears a corresponding series of deeply entering horizontal bars.
This genus has a wide distribution in the Red Sea, the Persian Gulf, the Indian Ocean, the Pacific Ocean, the East China Sea; off Australia (Northern Territory, Queensland, Tasmania, Western Australia).
According to the World Register of Marine Species (WoRMS), the following species with accepted names are included within the genus Eucithara
The Indo-Pacific Molluscan Database adds the following names in current use to the list