Turridrupa albocastanea is a species of sea snail, a marine gastropod mollusc in the family Turridae, the turrids.
Etymology 'albocastanea' refers to the coloration of the shell.
Description The shell of T. albocastanea is claviform with a spire roughly 1.4 times the height of its aperture made of 8-9 whorls, reaching up to 19.7 mm. The bottom half of the shell is creamy white with distinct brown dashes, while the top half is darker brown.
Distribution Turridrupa albocastanea has been found in the Philippines, Mariana Islands, and New Caledonia.
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