| संदर्भ अंक | विवरण | वर्ष | Name used | Page |
|---|---|---|---|---|
| 90161 | Børgesen, F. 1924 Marine algae from Easter Island. In: C. Skottsberg (ed), The Natural History of Juan Fernàndez and Easter Island 2:247-309. Göteborg, Sweden. | 1924 | Hypnea esperi | --> |
| 89847 | OCEANA 2011 Expedición a Isla de Pascua y Salas y Gómez. Febrero-Marzo de 2011. Informe Científico. OCEANA. http://oceana.org/sites/default/files/reports/Informe_IPySG_final.pdf [Accessed 30/03/2012]. | 2011 | Hypnea esperi | 48 |
| 106682 | Duffy, C.A.J. and S.T. Ahyong 2015 Annotated checklist of the marine flora and fauna of the Kermadec Islands Marine Reserve and northern Kermadec Ridge, New Zealand. Bulletin of the Auckland Museum 20:19-124. | 2015 | Hypnea esperi | 38 |
| 121724 | Songco, A. 2019 Personal communication. Tubbataha species list. Excel file "MyReport_Species_21May2019". | 2019 | Hypnea esperi | --> |