3 Terrae entries is a bug that will be fixed. (though I should note that, since the sprites are literally the same, you don't have to hunt down and click adult "alt" terraes for a specific row to unlock, only eggs. I just checked my own data and I apparently have not clicked many adults of one variant, but have all sprites adult).   Only having one solstice entry was something I recall being an intentional decision, but I don't recall the reasons, which means they might not be valid an