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Crustaceans vision science: every measurement

The vision values of all 144 crustaceans on this site, one row each, with the evidence level of every value and the studies behind it. Species with enough measured values also have their own science page.

See crustaceans on your photo

Who sees best among crustaceans?

Sharpest detail

  1. 1You63.75 cycles per degree Measured
  2. 2Horned ghost crab1.93 cycles per degree Measured
  3. 3Ciliated mantis shrimp1.56 cycles per degree Measured
  4. 4Common banded mantis shrimp1.5 cycles per degree Measured
  5. 5Blueleg mantis shrimp1.1 cycles per degree Measured
  6. 6Peacock mantis shrimp1.1 cycles per degree Measured

Fastest eyes

  1. 1Bigclaw snapping shrimp200 Hz flicker fusion Measured
  2. 2Rock louse120 Hz flicker fusion Measured
  3. 3Fiddler crab (Tubuca signata)90 Hz flicker fusion Measured*
  4. 4You60 Hz flicker fusion Measured
  5. 5Common hermit crab56 Hz flicker fusion Measured
  6. 6Devil crayfish56 Hz flicker fusion Measured*

Measured values by dial

DialSpecies with a measured value
Colour100
Sharpness48
Field of view0
Sharp zones (foveas)0
Night vision1
Motion (flicker fusion)35

All crustaceans, value by value

Evidence levels: how the tiers work. Studies: sources.

Vision values for crustaceans, catalogue-v1
SpeciesColourSharpnessField of viewSharp zones (foveas)Night visionMotion (flicker fusion)Studies
Aesop shrimp
Pandalus montagui		1 receptor class: 515 nm (MWS (green)) Measured0.31 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		15 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, lafitte2022_s10
Allman's crangon
Crangon allmanni		2 receptor classes: 415 nm (VS/SWS (violet)), 525 nm (MWS (green)) Measured0.13 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Ambon crinoid shrimp
Laomenes amboinensis		3 receptor classes: 390 nm (UVS), 496 nm (MWS (green)), 555 nm (LWS (long)) Estimated
yes: at least one receptor peaks in the ultraviolet Estimated		0.17 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		44 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
American grass shrimp
Cuapetes americanus		3 receptor classes: 390 nm (UVS), 496 nm (MWS (green)), 555 nm (LWS (long)) Estimated
yes: at least one receptor peaks in the ultraviolet Estimated		0.14 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		44 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
American lobster
Homarus americanus		1 receptor class: 515 nm (MWS (green)) Measured0.38 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Antarctic krill
Euphausia superba		1 receptor class: 486 nm (MWS (green)) Measured0.22 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		24 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, inger2014_tbl3
Asian shore crab
Hemigrapsus sanguineus		2 receptor classes: 360 nm (UVS), 480 nm (MWS (green)) Measured
yes: at least one receptor peaks in the ultraviolet Measured		1.93 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, porter2006_table1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Atlantic marsh fiddler
Minuca pugnax		1 receptor class: 509 nm (MWS (green)) Measured0.24 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		90 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Atlantic mud crab
Panopeus herbstii		1 receptor class: 492 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Atlantic rock crab
Cancer irroratus		1 receptor class: 496 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Bareye hermit
Dardanus fucosus		1 receptor class: 511 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Beautiful transparent shrimp
Ancylomenes venustus		3 receptor classes: 390 nm (UVS), 496 nm (MWS (green)), 555 nm (LWS (long)) Estimated
yes: at least one receptor peaks in the ultraviolet Estimated		0.1 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		48 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Bent mysid shrimp
Praunus flexuosus		1 receptor class: 510 nm (MWS (green)) Measured0.78 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		25 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Bigclaw snapping shrimp
Alpheus heterochaelis		2 receptor classes: 400 nm (VS/SWS (violet)), 497.5 nm (MWS (green)) Group default0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		200 Hz Measuredporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Black and silver cuapetes shrimp
Cuapetes grandis		3 receptor classes: 390 nm (UVS), 496 nm (MWS (green)), 555 nm (LWS (long)) Estimated
yes: at least one receptor peaks in the ultraviolet Estimated		0.12 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		44 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Blackback land crab
Gecarcinus lateralis		1 receptor class: 487 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Bloody-red shrimp
Hemimysis anomala		2 receptor classes: 393 nm (UVS), 500 nm (MWS (green)) Measured
yes: at least one receptor peaks in the ultraviolet Measured		0.78 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		25 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Blotched swimming crab
Achelous spinimanus		1 receptor class: 481 nm (MWS (green)) Measured0.56 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Blue crab
Callinectes sapidus		2 receptor classes: 440 nm (SWS (blue)), 504 nm (MWS (green)) Measured0.56 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Blueleg mantis shrimp
Hemisquilla californiensis		9 receptor classes: 414 nm (VS/SWS (violet)), 443 nm (SWS (blue)), 451 nm (SWS (blue)), 473 nm (SWS (blue)), 499 nm (MWS (green)), 500 nm (MWS (green)), 501 nm (MWS (green)), 510 nm (MWS (green)), 535 nm (MWS (green)) Estimated1.1 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		25 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Brine shrimp
Artemia salina		1 receptor class: 410 nm (VS/SWS (violet)) Measured0.25 cycles per degree Group default
2° Group default		--no rods (invertebrate photoreceptors) Group default-porter_crustacea_table1-1, feller2021_surfturf
Cajun dwarf crayfish
Cambarellus shufeldtii		1 receptor class: 526 nm (MWS (green)) Measured0.37 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		56 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Calico box crab
Hepatus epheliticus		1 receptor class: 487 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
California green shrimp
Hippolyte californiensis		2 receptor classes: 400 nm (VS/SWS (violet)), 497.5 nm (MWS (green)) Group default0.67 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Caribbean pen shrimp
Pontonia mexicana		3 receptor classes: 390 nm (UVS), 496 nm (MWS (green)), 555 nm (LWS (long)) Estimated
yes: at least one receptor peaks in the ultraviolet Estimated		0.06 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		44 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Caribbean spiny lobster
Panulirus argus		2 receptor classes: 379 nm (UVS), 510 nm (MWS (green)) Measured
yes: at least one receptor peaks in the ultraviolet Measured		0.21 cycles per degree Estimated
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		55 Hz Estimatedporter_crustacea_table1-1, feller2021_surfturf, phronima2022_eye_model, longcore2023_photopigments_v1.1, inger2014_tbl3
Caridean shrimp science page
Heterocarpus ensifer		1 receptor class: 497 nm (MWS (green)) Measured (not re-verified)0.31 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		16 Hz Measuredfrank2012_deepsea_crustacea_manual2, fabrictools_arthropod_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare
Ciliated mantis shrimp
Pseudosquilla ciliata		10 receptor classes: 400 nm (VS/SWS (violet)), 425 nm (VS/SWS (violet)), 433 nm (VS/SWS (violet)), 452 nm (SWS (blue)), 498 nm (MWS (green)), 498 nm (MWS (green)), 510 nm (MWS (green)), 517 nm (MWS (green)), 535 nm (MWS (green)), 539 nm (MWS (green)) Measured1.56 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		25 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare, inger2014_tbl3
Coarsehand lady crab
Ovalipes stephensoni		1 receptor class: 505 nm (MWS (green)) Measured0.15 cycles per degree Group default
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		22.5 Hz Group defaultporter_crustacea_table1-1, fabrictools_arthropod_eyes, feller2021_surfturf, sergestid2020_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1
Common banded mantis shrimp
Lysiosquilla maculata		10 receptor classes: 397 nm (UVS), 416 nm (VS/SWS (violet)), 434 nm (VS/SWS (violet)), 461 nm (SWS (blue)), 492 nm (MWS (green)), 499 nm (MWS (green)), 500 nm (MWS (green)), 516.5 nm (MWS (green)), 517 nm (MWS (green)), 538 nm (MWS (green)) Measured
yes: at least one receptor peaks in the ultraviolet Measured		1.5 cycles per degree Measured
1.6° Group default		--nocturnal Group default
no rods (invertebrate photoreceptors) Group default		25 Hz Group defaultstomatopod_larvae2016_msp, porter_crustacea_table1-1, fabrictools_arthropod_eyes, phronima2022_eye_model, longcore2023_photopigments_v1.1, haarlem2026_figshare

Method: how we know what animals see. Accuracy: the census.