opsins are called scotopsins when unbound to retinal and rhodopsins or porphyropsins when bound to retinal (1 and 2, respectively). Rod opsins mediate scotopic...

distinct types of opsins, porphyropsin and rhodopsin. They are present in the rods of the retina. Fresh water fishes have porphyropsin; marine ones and land...

Its retina is made up entirely of rods and no cones, with rhodopsin/porphyropsin pairs and a single opsin bound to some of its photoreceptors, which provide...

pigments in some deep-sea fishes: segregation of 'paired' rhodopsins and porphyropsins" over 125 times. 2002: The Biology of the Deep Ocean. Oxford University...

red-shifted light, as their retinae have long-wave absorbing rhodopsins and porphyropsins that can detect wavelengths of up to 590 nm. Aristostomias can detect...