These two species are very similar and they are called rabbit cause they have the ability to camouflage instantaneously like for example the octopus does.
They can change depending on the environment, if for example it is rocky or sandy. We captured the change in our underwater video! It is quite fascinating.
The species luridus has a straight tail fin and a seven spines anal fin.
We think that what we captured in video is the luridus species. But please let us know in the comments if it is the rivulatus and how can you tell.
Bibliography
- https://www.fishbase.us/summary/SpeciesSummary.php?ID=4545&AT=rabbitfish
- https://www.fishi-pedia.com/fishes/siganus-rivulatus
- https://www.fishbase.us/summary/SpeciesSummary.php?ID=4625&AT=rabbitfish
- Predation Cues Lead to Reduced Foraging of Invasive Siganus rivulatus in the Mediterranean – https://www.frontiersin.org/articles/10.3389/fmars.2021.678848/full
- Lessepsian invasion without bottleneck: example of two rabbitfish species (Siganus rivulatus and Siganus luridus) – https://www.sciencedirect.com/science/article/abs/pii/S0022098103001394
- https://www.researchgate.net/publication/233728314_One_Siganus_or_two_On_the_occurrence_of_Siganus_luridus_and_Siganus_rivulatus_in_the_Maltese_Islands
- https://www.cabidigitallibrary.org/doi/full/10.1079/cabicompendium.64220
Yannis and Stella @Apollon, Naxos 