Ancilla castanea is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
Subspecies Ancilla castanea albolutea Scali, 2023 Ancilla castanea castanea (G. B. Sowerby I, 1830) Ancilla castanea lutoflava Scali, 2023
Description The shell ranges in size from 25 to 32 mm.
(Original description in Latin) The shell is oblong-ovate, ventricose, and chestnut-colored. The spire is subacuminate with a white apex. The body whorl is equipped with two basal bands and a groove above the varix. The columellar varix is whitish, with a sinistral groove and some oblique striae. The aperture is subacuminate superiorly, with a strong tooth on the outer lip near the base.
Distribution This species is found in the Indian Ocean, specifically in sandy areas of shallow water off the coast of Oman. Its range also extends from the southern Red Sea to the Persian Gulf and to India.
References
Scali, M. (2023). Description of two new subspecies of Ancilla castanea (G. B. Sowerby I, 1830): Ancilla castanea lutoflava ssp. nov.; Ancilla castanea albolutea ssp. nov. and notes on a new color form of Ancilla castanea (G. B. Sowerby I, 1830) Ancilla castanea f. aurantiaca. Xenophora Taxonomy. 40: 36-41 Kilburn R.N. (1981). Revision of the genus Ancilla Lamarck, 1799 (Mollusca: Olividae: Ancillinae). Annals of the Natal Museum. 24(2): 349-463. Boyer F. (2015). Révision des Ancilla (Olividae: Ancillinae) de Masirah. Xenophora Taxonomy. 9: 3-14.
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