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Vision in the hyperiid amphipod Scina crassicornis
Cohen, J.H.; Frank, T.M. (2007). Vision in the hyperiid amphipod Scina crassicornis. J. Mar. Biol. Ass. U.K. 87(5): 1201-1206. dx.doi.org/10.1017/S0025315407056834
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Plymouth. ISSN 0025-3154, more
Peer reviewed article

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Keyword
    Marine

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  • Cohen, J.H.
  • Frank, T.M.

Abstract
    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.

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