Eucithara angiostoma is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.
This is not the organism previously described as Eucithara angiostoma <small>Kay, 1979</small>.
The length of the shell varies between 3 mm and 5 mm.
The longitudinal ribs are oblique. The transverse striae are very fine but distinct. The inner and outer lips are both corrugated. The color of the shell is whitish, with a broad central brown band on the back of the body whorl, which when the shell is worn appears as a spot.
This marine species occurs in the Indian Ocean (?), Polynesia, the Philippines.