Kikimaru said:
create alias goat_eyes -> rectangular_pupils
create alias sheep_eyes -> rectangular_pupils
create alias octopus_eyes -> rectangular_pupils
create alias toad_eyes -> rectangular_pupils
create alias horizontal_eyes -> rectangular_pupils
create alias cephalopod_eyes -> rectangular_pupils
Link to request
http://www.science20.com/variety_tap/evolution_rectangular_eye
Rectangular only refers to the shape, it doesn't and shouldn't define orientation as well. If an artist were to draw vertical oriented rectangular pupils, then they would fall under this tag. The naming leaves room for something that's kind of at odds with the goal of this tag for covering pupils oriented horizontally. Wikipedia's article uses both orientation and shape, such as "A goat with horizontal rectangular pupils."
You can pull up just as many sites that refer to them as slits as you can rectangles ("horizontal slit pupils": 9,860 results vs. "rectangular pupils": 8,160 results). There are also scientific journal articles that refer to them as slits (example 1 and example 2 ). At minimum horizontal slit isn't incorrect usage.
Cephalopod_eyes shouldn't be aliased at all to this tag, because that is treating cephalopods as if they have one specific eye shape, which they don't (wikipedia ). Cephalopods have a variety of different shapes, with squids having circular pupils, cuttlefish having w-shaped pupils, and octopi having horizontal slits/rectangular pupils.
I'll probably just go with Hillside's proposal of "horizontal_pupils," as perhaps leaving room for different shapes that are oriented horizontally would be better in the end. Whether w-shaped pupils fall under that tag or not is still something I'm curious about. Additionally U-shaped pupils as well (dolphin's pupils at various light levels if the middle one gets drawn would that be defined as horizontal?).