Thalassia is a marine seagrass genus comprising two known species.
Species Thalassia hemprichii (Ehrenb.) Asch. - Pacific Turtlegrass (shores of the Western and Central Indo-Pacific) Thalassia testudinum (Banks ex K.D.König) - Caribbean Turtlegrass (Gulf of Mexico, Caribbean Sea, and Bermuda)
References
External links
Images of Thalassia at Algaebase