# Ancilla (gastropod)

Ancilla, common name the ancillas, is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.

## Description

(Described as Chilotygma) The spire is moderate, the suture enamelled. The inner lip has the callus produced posteriorly into a strong angular tooth.
(Described as Anaulax) The shell is not polished. The spire is produced with sutures covered with a thick deposit of enamel. The inner lip has the callus extended, thick, and covering the spire.
(Described as Ancillaria) The shell is thin, ventricos and striated. The spire is short, obtuse with the suture enamelled. The aperture is wide.
(Described as Ancilla) The shell is oblong, subcylindrical and polished. The spire is short with the suture filled up with enamel. The aperture is large, dilated and effuse anteriorly. The twisted columella is callous anteriorly. The outer lip is thin, simple and acute.

## Species

Species within the genus Ancilla include:
* Ancilla acuminata (G.B. Sowerby II, 1859)
* Ancilla adelphe Kilburn, 1981
* Ancilla albisulcata (G.B. Sowerby I, 1830)
* Ancilla albozonata E.A. Smith, 1904
* Ancilla ampla (Gmelin, 1791)
* † Ancilla asphaltodes Beets, 1942
* Ancilla atimovatae Kantor, Fedosov, Puillandre & Bouchet, 2016
* Ancilla aureocallosa (Kilburn & Jenner, 1977)
* † Ancilla austriaca (R. Hoernes, 1875)
* † Ancilla bandongensis (K. Martin, 1879)
* Ancilla boschi Kilburn, 1980
* Ancilla castanea (G.B. Sowerby I, 1830)
* Ancilla chrysoma Kilburn, 1981
* Ancilla cinnamomea Lamarck, 1801
* Ancilla culierei Cossignani & Quiquandon, 2019
* † Ancilla decipiens K. Martin, 1931
* Ancilla djiboutina (Jousseaume, 1894)
* Ancilla eburnea (Deshayes, 1830)
* † Ancilla elegantula (Tesch, 1915)
* Ancilla eloiseae T. Cossignani, 2023
* † Ancilla everwijni (K. Martin, 1884)
* Ancilla exigua (G.B. Sowerby I, 1830)
* Ancilla farsiana Kilburn, 1981
* Ancilla faustoi H.R. Matthews, H.C. Matthews & Muniz Dijck, 1979
* Ancilla giaquintoi Bozetti, 2006
* Ancilla guttata Boyer, 2015
* † Ancilla ickei K. Martin, 1914
* Ancilla inornata (E.A. Smith, 1879)
* Ancilla iota Kilburn, 1981
* † Ancilla javana (K. Martin, 1879)
* † Ancilla junghuhni (K. Martin, 1879)
* Ancilla kaviengensis Kantor, Fedosov, Puillandre & Bouchet, 2016
* † Ancilla latifasciata K. Martin, 1933
* Ancilla lhaumeti Kantor, Fedosov, Puillandre & Bouchet, 2016
* Ancilla lineolata (A. Adams, 1853)
* Ancilla marmorata (Reeve, 1864)
* † Ancilla martini (Tesch, 1915)
* Ancilla matthewsi Burch & Burch, 1967
* Ancilla minima Thiele, 1925
* Ancilla morandii Cossignani, 2019
* Ancilla morrisoni Kantor, Fedosov, Puillandre & Bouchet, 2016
* Ancilla murrayi Kilburn, 1981
* † Ancilla nitida (Wanner & Hahn, 1935)
* † Ancilla nonna K. Martin, 1914
* † Ancilla nuda (K. Martin, 1884)
* † Ancilla olsoni P. A. Maxwell, 1992
* Ancilla ordinaria E.A. Smith, 1906
* Ancilla ovalis (G.B. Sowerby II, 1859)
* † Ancilla paeteli K. Martin, 1914
* † Ancilla parvula (K. Martin, 1884)
* † Ancilla propinqua (Zittel, 1863)
* Ancilla pruinosa Boyer, 2015
* † Ancilla pusilla K. Martin, 1931
* † Ancilla rasa K. Martin, 1914
* Ancilla reboriae Poppe, Tagaro & Goto, 2018
* † Ancilla rembangensis (K. Martin, 1906)
* Ancilla rouillardi Kilburn, 1981
* Ancilla sarda (Reeve, 1864)
* Ancilla scaphella (G.B. Sowerby II, 1859)
* Ancilla siberutensis Thiele, 1925
* † Ancilla songoensis K. Martin, 1914
* † Ancilla staminea (Conrad, 1832)
* Ancilla sticta Kilburn, 1981
* † Ancilla stupaeformis Beets, 1942
* Ancilla suavis Yokoyama, 1926
* Ancilla sultana Boyer, 2015
* Ancilla taylori Kilburn, 1981
* † Ancilla teschi (Koperberg, 1931)
* Ancilla testudae (Kilburn, 1977)
* Ancilla thomassini Kilburn, 1981
* Ancilla tronsoni (G.B. Sowerby II, 1859)
* Ancilla undulata Boyer, 2015
* Ancilla ventricosa (Lamarck, 1811)

### Species brought into synonymy

* Ancilla agulhasensis Thiele, 1925: synonym of Ancilla ordinaria E.A. Smith, 1906
* Ancilla alba Perry, 1811: synonym of Buccinanops vittatum (Linnaeus, 1767)
* Ancilla coccinea Fischer, 1807: synonym of Ancilla cinnamomea Lamarck, 1801
* Ancilla coccinea Hedley, 1914: synonym of Amalda coccinata Kilburn, 1980
* Ancilla edgariana Schepman, 1911: synonym of Amalda edgariana (Schepman, 1911)
* Ancilla fasciata Reeve, 1864: synonym of Ancilla ordinaria E.A. Smith, 1906
* Ancilla lineata Perry, 1811: synonym of Nassarius glans glans (Linnaeus, 1758)
* Ancilla maculata Perry, 1811: synonym of Babylonia areolata (Link, 1807)
* Ancilla mauritiana G.B. Sowerby I, 1830: synonym of Anolacia mauritiana (G.B. Sowerby I, 1830)
* Ancilla muscae Pilsbry, 1926: synonym of Ancillista muscae (Pilsbry, 1926)
* Ancilla optima G.B. Sowerby III, 1897: synonym of Amalda optima (G.B. Sowerby III, 1897)
* Ancilla ordinaria major Turton, 1932: synonym of Ancilla albozonata E.A. Smith, 1904
* Ancilla oryza Reeve, 1864: synonym of Ancilla lineolata (A. Adams, 1853)
* Ancilla osculata Sowerby, 1900: synonym of Bullia osculata (Sowerby, 1900)
* Ancilla pallida Perry, 1811: synonym of Babylonia spirata (Linnaeus, 1758)
* Ancilla pura Sowerby, 1892: synonym of Ancilla marmorata (Reeve, 1864)
* Ancilla rubiginosa : synonym of Amalda rubiginosa (Swainson, 1823) (original combination)
* Ancilla sumatrana Thiele, 1925: synonym of Ancillina sumatrana (Thiele, 1925)