# Astraea (gastropod)

Astraea is a genus of medium to large sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails.

## Etymology

The Latin genus Astraea means star, with reference to the star-shape of these snails, also commonly called star shells.

## Description

Shells of species within this genus can reach a size of about 60 millimetres (2.4 in). They have the appearance of a smooth conical shell. The outer edges of the coiled whorls are quite flattened, with prominent axial sculpture. Below widely, it is umbilicate and concave.

## Species

Extant species within this genus include:
* Astraea heliotropium (Martyn, 1784)

## Fossil records

This genus is known in the fossil records from the Paleocene to the Quaternary (age range: from 61.7 to 0.0 million years ago). Fossils of species within this genus have been found in the sediments of Europe, Australia, United States, Japan, Venezuela, Colombia and Brazil.

## Species

Extinct species within this genus include:
* †Astraea (Liotiastralium) venezuelana Weisbord 1962
* †Astraea (Pomaulax) gradata Grant and Gale 1931
* †Astraea (Pomaulax) morani Loel and Corey 1932
* †Astraea (Vitiastraea) holmesi Ladd 1966
* † Astraea bicarinata Suter, 1917
* †Astraea fimbriata Borson 1821
* Astraea heliotropium (Martyn, 1784)
* †Astraea stellare Gmelin 1791
* † Astraea stirps Laws, 1932
* †Astraea tentoriiformis Jonas, 1844

### Species brought into synonymy

* †Astraea (Australium) rhodestoma Lamarck 1822: synonym of Astralium rhodostomum (Lamarck, 1822)
* Astraea americana (Gmelin, 1791): synonym of Lithopoma americanum (Gmelin, 1791)
* Astraea andersoni (Smith, 1902): synonym of Bolma andersoni (Smith, 1902)
* Astraea babelis (P. Fischer, 1874): synonym of Uvanilla babelis (P. Fischer, 1874)
* Astraea brevispina (Lamarck, 1822): synonym of Lithopoma brevispina (Lamarck, 1822)
* Astraea buschii (Philippi, 1844): synonym of Uvanilla buschii (Philippi, 1844)
* Astraea calcar (Linnaeus, 1758): synonym of Astralium calcar (Linnaeus, 1758)
* Astraea cookii (Gmelin, 1791): synonym of Cookia sulcata (Lightfoot, 1786)
* Astraea cubanum Philippi, 1849: synonym of Lithopoma tectum (Lightfoot, 1786)
* Astraea danieli Alf & Kreipl, 2006: synonym of Astralium danieli (Alf & Kreipl, 2006)
* Astraea dominicana A. H. Verrill, 1950: synonym of Lithopoma tuber (Linnaeus, 1758)
* Astraea gilchristi (G. B. Sowerby III, 1903): synonym of Bolma bathyraphis (E. A. Smith, 1899)
* Astraea heimburgi (Dunker, 1882): synonym of Astralium heimburgi (Dunker, 1882)
* Astraea hokianga Laws, 1948: synonym of Bembicium hokianga (Laws, 1948)
* Astraea imbricata (Gmelin, 1791): synonym of Lithopoma tectum (Lightfoot, 1786)
* Astraea imbricatum Gmelin, 1791: synonym of Lithopoma tectum (Lightfoot, 1786)
* Astraea jacquelineae Marche-Marchad, 1957: synonym of Bolma jacquelineae (Marche-Marchad, 1957)
* Astraea johnstoni (Odhner, 1923): synonym of Bolma johnstoni (Odhner, 1923)
* Astraea lapidifera Röding, 1798: synonym of Xenophora (Xenophora) conchyliophora (Born, 1780)
* Astraea latispina (Philippi, 1844): synonym of Astralium latispina (Philippi, 1844)
* Astraea longispina Lamarck, 1822: synonym of Lithopoma phoebium longispina (Lamarck, 1822)
* Astraea milloni B. Salvat, F. Salvat & Richard, 1973: synonym of Astralium milloni (B. Salvat, F. Salvat & Richard, 1973)
* Astraea olfersii (Philippi, 1846): synonym of Lithopoma americanum (Gmelin, 1791)
* Astraea olivacea (W. Wood, 1828): synonym of Uvanilla olivacea (W. Wood, 1828)
* Astraea papillatum Potiez & Michaud, 1838: synonym of Lithopoma tectum (Lightfoot, 1786)
* Astraea persica Dall, 1907: synonym of Bolma persica (Dall, 1907)
* Astraea petrothauma Berry, 1940: synonym of Megastraea turbanica (Dall, 1910)
* Astraea phoebia Röding, 1798: synonym of Lithopoma phoebium (Röding, 1798)
* Astraea polaris Röding, 1798: synonym of Stellaria solaris (Linnaeus, 1764)
* Astraea rhodostoma Lamarck, 1822: synonym of Astralium rhodostomum (Lamarck, 1822)
* Astraea rugosa (Linnaeus, 1767): synonym of Bolma rugosa (Linnaeus, 1767)
* Astraea rupicollina Stohler, 1959: synonym of Megastraea turbanica (Dall, 1910)
* Astraea semicostata (Kiener, 1850): synonym of Astralium semicostatum (Kiener, 1850)
* Astraea sirius Hedley, C., 1923: synonym of Astralium tentoriiforme (Jonas, 1845)
* Astraea spirata (Dall, 1911): synonym of Pomaulax spiratus (Dall, 1911)
* Astraea sulcata (Martyn, 1784): synonym of Cookia sulcata (Lightfoot, 1786)
* Astraea tayloriana (E. A. Smith, 1880): synonym of Bolma tayloriana (E. A. Smith, 1880)
* Astraea tectum Lightfoot, 1786: synonym of Lithopoma tectum (Lightfoot, 1786)
* Astraea tuber (Linnaeus, 1758): synonym of Lithopoma tuber (Linnaeus, 1758)
* Astraea tuberosum: synonym of Astralium rhodostomum (Lamarck, 1822)
* Astraea undosa (Wood, 1828): synonym for Lithopoma undosum (Wood, 1828)
* Astraea unguis (Wood, 1828): synonym of Uvanilla unguis (W. Wood, 1828)
* Astraea venezuelensis Flores & Caceres, 1984: synonym of Lithopoma tuber (Linnaeus, 1758)