Ancilla castanea
Ancilla castanea is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
;Subspecies:Ancilla castanea albolutea Scali, 2023Ancilla castanea castanea Ancilla castanea lutoflava Scali, 2023
Description
The shell ranges in size from 25 to 32 mm.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.