@Sal Thank you! Indeed, the opsin is not the sensor, but we can use a mutation in the opsin gene to disrupt the ciliary superstructure and then we see a phenotype in pressure sensing, and also in UV light sensing, as we previously described: https://elifesciences.org/articles/36440
@Sedathems it's about a polyclad flatworm, related to this beauty
https://www.reeflex.net/tiere/12181_Prostheceraeus_floridanus.htm
@Sal Thank you! Indeed, the opsin is not the sensor, but we can use a mutation in the opsin gene to disrupt the ciliary superstructure and then we see a phenotype in pressure sensing, and also in UV light sensing, as we previously described: https://elifesciences.org/articles/36440
@dpunked Thank you! A bryozoan larva would be nice! Maybe one day we will get there...