Crassinella lunulata
{{Short description|Species of bivalve}}
{{Speciesbox
| image =Crassinella lunulata (YPM IZ 023787).jpeg
| genus = Crassinella
| species = lunulata
| authority = (Conrad, 1834)
| display_parents = 3
}}
Crassinella lunulata, or the lunate crassinella, is a species of very small bivalve mollusc in the family Crassatellidae. It can be found along the Atlantic coast of North America, ranging from Massachusetts to Texas.Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 43.