Agathotoma pomara W. H. Dall, 1919 (original description) Mangelia pomara is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) The small, solid and discolored shell has a fusiform shape.

The protoconch is small, subglobular and smooth (slightly decorticated).

The spiral sculpture consists of close-set alternated threads over the whole surface except between the shoulder and the suture, which is arcuately striated by the incremental lines.

[1] This marine species occurs off San Pedro, California, USA.