"Evoluticauda"--
cauda is Latin for tail (of an animal), as in the constellation Serpens Cauda.
Evolvere, evolvo, evolvi, evolutus, -a, -um means to roll out or roll open.
Evolutio means unrolling (of a scroll), hence reading.
So the genus name has something to do with the shape of the tail, and nothing to do with Charles Darwin.
That should be "subgenus" not "genus."
Have no idea how they taste but too small to be served in a sub.