I thought autofocus would have an easy time with the vessels in the foot, but no.
Pity I still can't have the book and give it a proper name. And a pity it had to wash up where it doesn't belong.
Weeks later, after seeing my share of these things, I looked in the right book. 1] They are purple olive snails. 2] The wonderful news is that they do belong in the wet sand, tunneling along and scavenging for scavengeable stuff.
In shallow water. Like the purple olive snail, but they have that brown diagonal. I'll try to remember to look them up.
Starting to find abrasions on the undersides. I don't know whether I hadn't taken notice earlier, or it's just later in life for them later in the summer. I assumed the slipperiness was about frustrating the predatory birds, but maybe it's about not having your shell wear away to nothing as you spend your life plowing through sand.
I've also been picking them up to see whether they're all right-handed. So far.
Never saw a barnacle manage to get a grip on one before.
again, shallow water.
and an ant
egg cases. I don't know whether a case contains multiple eggs.
Later: My friend is skeptical about these being egg cases.
