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Updated: Aug 29, 2025
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Published on: November 9, 2016
9.5K
Colour vision in stomatopod crustaceans.
Thomas W Cronin1, Megan L Porter2, Michael J Bok3
1Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, MD 20250, USA.
Summary
Mantis shrimps possess complex eyes with up to 12 photoreceptor types, enabling them to see ultraviolet (UV) and visible colours. Despite this, their colour discrimination precision is limited, leaving many aspects of their vision a mystery.
Area of Science:
- Marine biology
- Animal vision
- Crustacean physiology
Background:
- Stomatopod crustaceans (mantis shrimps) are marine predators with uniquely structured compound eyes.
- Their eyes feature a specialized midband region with ommatidia adapted for colour analysis.
- Some species possess six-row midbands with dorsal rows containing photoreceptors divided into UV, short-wavelength, and long-wavelength tiers.
Purpose of the Study:
- To review the structure and function of stomatopod colour vision.
- To examine receptor types, spectral tuning, neural analysis, and genetic basis of visual pigments.
- To highlight the remaining mysteries in stomatopod vision despite extensive research.
Main Methods:
- Review of existing literature on stomatopod visual systems.
- Analysis of photoreceptor structure and spectral sensitivity.
- Examination of colour discrimination capabilities and neural processing.
Main Results:
- Stomatopod eyes have up to 12 photoreceptor channels with distinct spectral sensitivities.
- They can discriminate colours across the human-visible and ultraviolet spectra.
- Colour vision precision is limited compared to other animal systems.
Conclusions:
- Stomatopod colour vision is highly specialized but not precisely resolved.
- The full operational mechanisms and ecological relevance of their colour vision remain largely unknown.
- Further research is needed to unravel the complexities of their visual system.
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