Rissoina multicostata is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae. Distribution This species occurs in the Caribbean Sea and the Gulf of Mexico. Description The maximum recorded shell length is 5.2 mm. Habitat Minimum recorded depth is 0 m. Maximum recorded depth is 525 m. References Adams, C. B., 1850. Descriptions of supposed new species of marine shells, which inhabit Jamaica. Contributions to Conchology 7: 109-123 Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas External links Rissoinidae Gastropods described in 1850