R H Douglas, C W Mullineaux, & J C Partridge: Long-wave sensitivity in deep-sea stomiid dragonfish with far-red bioluminescence: evidence for a dietary origin of the chlorophyll-derived retinal photosensitizer of Malacosteus niger. Philos Trans R Soc Lond B Biol Sci. 2000 September 29; 355(1401): 1269–1272. PMC 1692851 (freier Volltext)