Animals used for dissection vary according to the level of the class which it is used.
A fetal pig, grass frog, earthworm, grasshopper, crayfish, clam, perch and starfish in grades 5-11. And a cat in grade 12.
In college: cow eye, cow heart, cow kidney, sheep pluck (heart lungs and trachea), rat (doubly injected), dogfish shark, fetal pig doubly injected (latex colors) and sheep brain.
In Grad school a human cadaver.