Agaronia acuminata, common name the pointed ancilla, is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olive snails.[1]

Agaronia acuminata
Apertural view of a shell of Agaronia acuminata boavistensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Olividae
Genus: Agaronia
Species:
A. acuminata
Binomial name
Agaronia acuminata
(Lamarck, 1811)
Synonyms[1]
  • Agaronia (Agaronia) subulata Reeve, L.A., 1850
  • Agaronia (Anazola) acuminata acuminata (Lamarck, 1811)
  • Oliva acuminata Lamarck, 1811 (basionym)

Subspecies

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  • Agaronia acuminata acuminata (Lamarck, 1811)
  • Agaronia acuminata boavistensis Burnay & Conceicao, 1986

Description

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The length of the shell varies between 30 mm and 80 mm.

The smooth and glossy shell is elongate and fusiform, which means it is spindle-shaped, tapering at both ends. The spire is relatively low, compared with the overall length of the shell. The shell exhibits a range of colors: yellowish, fawn, or ash-gray, and features irregular markings, including zigzags and maculations, or is sometimes faintly nebulous with nearly obsolete markings. The suture may have fasciculations and is often reduced to a row of spots, and in some cases, it is entirely unspotted. The fasciole and fasciolar band are typically yellowish or fawn-colored, occasionally exhibiting faint, close-set, orange-red strigations. The columella is white, while the interior of the long and narrow aperture is also white, with chestnut maculations along the border of the sharp outer lip. [2]

Distribution

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This species has a widespread distribution in tropical and subtropical marine environments. It occurs in the Atlantic Ocean off Gabon, Angola and West Africa.[1]; also off Costa Rica, Pakistan, Sri Lanka, Indonesia and Australia. [3]

It is typically found in shallow waters, from the intertidal zone to depths of about 20 meters,

References

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  • Teso V. & Pastorino G. (2011) A revision of the genus Olivancillaria (Mollusca: Olividae) from the southwestern Atlantic. Zootaxa 2889: 1–34
  • Nolf, F. & Hubrecht, S. (2024). A survey of the genus Agaronia in the West African waters, including the description of a new species. Neptunea. 17(2): 14-40.
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  • Lamarck (J.B.M.de). (1811). Suite de la détermination des espèces de Mollusques testacés. Annales du Muséum National d'Histoire Naturelle. 16: 300-328
  • "Agaronia (Anazola) acuminata acuminata". Gastropods.com. Retrieved 15 January 2019.