Sankaku Channel/slit pupils

Pupils that are "non-circular" that appear to be stretched vertically or horizontally.

These style of eyes are commonly seen with animals like felines, foxes, goats, lizards, snakes, and cephalopods. And fantasy creatures such as dragons, vampires or demon and monster characters.

Note: Tsurime eyes sometimes have large irises with a pupil appearing slit, but this isn't sufficient to be actual "slit pupils". This is also distinct from | |.