This name is a synonym of Cymodocea serrulata (R.Br.) Asch. & Magnus.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 308469) with original publication details: Syst. Veg. 1: 181 1824.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:603104-1.
This name was in version 1 of The Plant List, record kew-308469, and has not been changed.