Vision in the Hyperiid Amphipod Scina crassicornis
Journal of the Marine Biological Association of the United Kingdom
Light microscopy and extracellular electrophysiology were used to investigate eye structure and visual physiology of the hyperiid amphipod Scina crassicornis, a mesopelagic species that emits unusually short-wavelength luminescence (λmax=435-444 nm). The overall eye morphology is most similar to some previously described deep-dwelling amphipods, though not other hyperiids. Electroretinograms suggest that S. crassicornis possesses a relatively sensitive eye with slow temporal dynamics, and a monochromatic visual system (λmax=472 nm). Vision in S. crassicornis is well-suited for life in mesopelagic waters, and its short-wavelength luminescence does not play a role in intraspecific sexual signalling.
Jonathan H. Cohen and Tamara M. Frank. 2007. Vision in the Hyperiid Amphipod Scina crassicornis .Journal of the Marine Biological Association of the United Kingdom , (5) : 1201 -1206. https://nsuworks.nova.edu/occ_facarticles/453.