In the dog and the cat it arises from the base of the pinna of the ear, from the portion of this base which bears the name of Scutiform cartilage.
"Artistic Anatomy of Animals"
Édouard Cuyer
The interscutellar is a single muscle, thin and broad, covering the temporal muscle and a portion of the occipital, extending from the Scutiform cartilage of the pinna of one side to the same cartilage of the pinna belonging to the side opposite.
"Artistic Anatomy of Animals"
Édouard Cuyer