This name is a synonym of Ruppia filifolia (Phil.) Skottsb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 286896) with original publication details: Bot. Not. 1911: 140 1911.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:224575-2.
This name was in version 1 of The Plant List, record kew-286896, and has not been changed.