Last Saturday I spent a couple of hours looking thru several lots of the tree snail Liguus fasciatus at the Delaware Museum of Natural History.
These snails are native to southern Florida, Cuba and Hispaniola. In the U.S. they are considered endangered. In a previous post I told the tale of how a couple of summers ago down in Florida I had to confront hordes of blood-thirsty mosquitos just to take a few pictures of Liguus. Luckily, mosquitos were not a concern at the museum.
The picture on the left shows a big guy from Holguin, Cuba. The museum label identified it as Liguus fasciatus achatinus.
I was specifically looking for scarred shells and I did find several. Below is an example of one specimen that suffered a long break while it was still a juvenile. The blue dotted line is the estimated location of where the lip was before it broke. The area bounded by the blue line and the jagged scar ending at the red arrow is the rebuilt portion of the shell.
The snail survived partly because it was able to withdraw behind the broken section. This specimen and a few others like it demonstrated to my satisfaction that Liguus fasciatus, like many other land snails, also build their shells larger than their bodies. I have discussed this topic before in this post.