I first encountered the intertidal snail Batillaria minima in Florida in 2006. Ever since then it has become one of my favorite snails. I have already published one short paper about B. minima's retractibility into its shell. I have also written about the species on this blog numerous times (for example, here).
Last month when we were in Florida, I was able to collect more data on various aspects of the biology of B. minima. For example, I photographed several individuals, juveniles and adults, from below while they were crawling on a glass plate.
Note in the picture how small the foot is relative to the shell. I am trying to understand how the snail's shell and foot grow relative to each other. I haven't yet had a chance to take measurements from the photos.
Expect more posts on Batillaria in the future.