Ancilla tronsoni

Ancilla tronsoni
Shell of Ancilla tronsoni (specimen at the Natural History Museum, Rotterdam)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Ancillariidae
Genus:	Ancilla
Species:	A. tronsoni
Binomial name
Ancilla tronsoni (G.B. Sowerby II, 1859) [1]
Synonyms
Ancilla (Sparella) tronsoni(G. B. Sowerby II, 1859) Ancillaria tronsoniG. B. Sowerby II, 1859 (original combination)

Ancilla tronsoni is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae. ^[2]

Description

The length of the shell attains 16 mm.

(Original description in Latin) The shell is suboval, very polished, and white. The spire is short. The aperture is elongated. The inferior suture is subcalloused, with a simple inferior band. The varix is short and striated, with a siphonal canal located behind the varix.

This species has a form that somewhat resembles Ancilla scaphella , yet approaches Ancilla ampla , but is distinguished by a much shorter varix than either. ^[3]

Distribution

This marine species occurs off Mozambique.

References

1. Sowerby G.B. II (1859). Monograph of the genus Ancillaria. Thesaurus Conchyliorum 3. World Register of Marine Species, Retrieved 28 April 2010.
2. Ancilla tronsoni (G.B. Sowerby II, 1859) . Retrieved through: World Register of Marine Species  on 28 April 2010.
3. Sowerby, G. B. II. (1859). Monograph of the genus Ancillaria. In thesaurus Conchyliorum, or monographs of Genera of Shells, vol. 3 (19). London: G. B. Sowerby II. Retrieved 1 August 2025. This article incorporates text from this source, which is in the public domain .