title: Vertebrate ancient opsin and melanopsin: divergent irradiance detectors.
authors.affiliation: Circadian and Visual Neuroscience, Nuffield Laboratory of Ophthalmology, University of Oxford, Levels 5-6 West Wing, John Radcliffe Hospital, Headley Way, Oxford, UK OX3 9DU.
authors.forename: Wayne L
authors.initials: WL
authors.lastname: Davies
authors.forename: Mark W
authors.initials: MW
authors.lastname: Hankins
authors.forename: Russell G
authors.initials: RG
authors.lastname: Foster