HEAD-TO-TAIL SHIFT
The Puzzlemaster Presents Vol. 2
Will Shortz

Think of a certain word starting with the letter E. Move the E to the end and the result will be the names of two animals side by side. What are they? Hint: The first animal is fairly large, and the second one is small.

HINT:
The letter following the E is P.

Answer:

EPONYMOUS - PONY/MOUSE