Perhaps it is/comes from one of these:
Demonic Style
Angelic Manner
Inaris Beads
Platypus
They are called gills!
The slits are simply called arrow slits or occasionally Balistraria. Sometimes the arrow slits are looking out of embrasures. Arrow slits were useful for protecting the castle as they were easy to fire out of but very, very hard to fire into. To find out more about embrasures click on the link below. "Wikipedia.org: Embrasure" To find out more about arrow slits click on the other link below. "Wikipedia.org: Arrow slits".
The Slits was created in 1976.
The Slits ended in 1982.
gill slits
by the gill slits
it means slits it means slits
Whales have abdominal mammary slits, which conceal nipples from which a calf suckle.
Chordates are the organisms that have a rod like cartilagenous structure called notochord which gives rise to nervous system. These have pharyngeal gill slits. Nonchordates are the organisms that do not have a notochord. These do not have pharyngeal gill slits.
Return of the Giant Slits was created in 1981.
All chordates embryos have pharngeal slits.
I saw the whole thing through the slits in the fence. The piece of meat had slits across the surface.