Macrarene coronadoensis is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.
[1] The height of the shell attains 23.2 mm., its diameter 26.9 mm.
The nacreous white shell is rather large for the genus and contains 3½ rapidly enlarging whorls.
The second row of projections below the periphery distinguishes this species from Macrarene farallonensis.
[2] This species occurs in the Pacific Ocean off the Coronado Islands, California.