It looks like the Zander is fairly close to the Walleye. They split from a common ancestor about 20 million years ago.

The snake’s classification has been shaken up within the last decade. Everyone can agree on they are in the same family, but Colubridae was considered a “wastebasket taxon” where every snake that they couldn’t categorize was placed. In 2018, new genetic data started to show they are indeed related, but now they need to do more testing to figure out all the “who begat whom” of the near 250 snakes places in Colubridae, so the snake people should be busy for a while. 😄

I looked up the tube structure, which seems to be called the glottis. I’ve discussed the glottis a bunch over at c/Superbowl, as this is also the same structure that lets the owls breath while they swallow their food whole.