Granulina mamanucensis is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Granulinidae.
Distribution This marine species occurs off the Fiji Islands
References
Wakefield, A. & McCleery, T., 2004. New species of Granulina and Gibberula (Gastropoda: Cystiscidae) from offshore subtidal habitats and the western Fijian Islands. Novapex 5(2-3): 69-78