How does the coelacanth see?
The coelacanth (Latimeria chalumnae) is a animal in the order Coelacanthiformes. Its eyes belong to the vision type .
Measured in this species: colour. Measured colour or sharpness: a measured receptor set or acuity in this species; other dials come from relatives or group defaults. Every value below carries its evidence level and sources; nothing is typed by hand.
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What stands out
- It has one receptor class for colour, so it sees brightness but no hue.
- It stops seeing flicker at 55.4 Hz, against 60 Hz for people in this dataset, so fast motion looks about the same.[6][7]
- Activity pattern: nocturnal.
The six dials
Evidence levels: how the tiers work. "Measured" means a value measured in this species; "Estimated" values come from a close relative or an eye-size formula.
| Dial | Value | Evidence | Sources |
|---|---|---|---|
| Colour | Colour receptors 1 receptor class: 604 nm (LWS (long)) measured in this species | Measured | [1] |
| Sharpness | No value in the catalogue. | ||
| Field of view | No value in the catalogue. | ||
| Sharp zones (foveas) | No value in the catalogue. | ||
| Night vision | Activity pattern nocturnal group default: mode of tier-A values in vision type phylum Chordata within phylum Chordata (1 species: Sphenodon punctatus) | Group default | [2][3][4][5] |
| Rods vs cones rod-dominated | Group default | [2][3][4][5] | |
| Motion (flicker fusion) | Flicker fusion frequency 55.4 Hz group default: median of tier-A values in vision type phylum Chordata within phylum Chordata (1 species: Sphenodon punctatus) | Group default | [6][7][8] |
Related animals
- Horseshoe crab same vision type
- Tuatara same vision type
- Australian lungfish same vision type
- Brine shrimp same vision type
- Commander same vision type
- Common owl-moth same vision type
More other: all other with measured vision data.
Sources
- Kirwan J. luxR 0.1.1: Underwater Light Analysis and Visual Ecology (R-universe), data species_sensitivities. github.com/JohnKirwan/luxR
- Anderson SR, Wiens JJ. 2017. Out of the dark: 350 million years of conservatism and evolution in diel activity patterns in vertebrates. Evolution 71:1944-1959. Dryad doi:10.5061/dryad.fg700. doi.org/10.5061/dryad.fg700
- Banks MS, Sprague WW, Schmoll J, Parnell JAQ, Love GD. 2015. Science Advances 1:e1500391. doi.org/10.1126/sciadv.1500391
- Oskyrko O, Mi C, Meiri S, Du W. 2024. ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data 11 (doi:10.1038/s41597-024-03079-5). Dataset v1-2 (includes Meiri 2018 lizard traits). doi.org/10.6084/m9.figshare.24572683.v4
- Moura et al. 2024. A phylogeny-informed characterisation of global tetrapod traits addresses data gaps and biases. PLoS Biol 22:e3002658. TetrapodTraits v3.0.1.. doi.org/10.5281/zenodo.22536349
- Healy K, McNally L, Ruxton GD, Cooper N, Jackson AL. 2013. Metabolic rate and body size are linked with perception of temporal information. Animal Behaviour 86:685-696. Table 1. doi.org/10.1016/j.anbehav.2013.06.018
- Inger R, Bennie J, Davies TW, Gaston KJ. 2014. Potential biological and ecological effects of flickering artificial light. PLoS ONE 9(5): e98631. Table 3. doi.org/10.1371/journal.pone.0098631
- Lafitte A, Sordello R, Legrand M, Nicolas V, Obein G, Reyjol Y. 2022. A flashing light may not be that flashy: A systematic review on critical fusion frequencies. PLoS ONE 17(12): e0279718. S10 File (CFF database). doi.org/10.1371/journal.pone.0279718
Every value cites its sources (all sources). Data: catalogue-v1, built 2026-09-29. Accuracy notes: how accurate is this?