transcribing a sea code

I've decided to proceed with studying the patterning on a sea urchin shell as well as understanding the mechanics behind the creature's locomotion.

Here is my first transcription of a slice across the sea urchin plane. The sea urchin is composed of 5 equal measures like in music. There are only three types of notes, which I picked arbitrarily as F, A and E. The tube feet or podia are the E notes. The podia repeat twice in one measure, in opposite directions. So, they are two variations of E in one octave. (I hope this makes sense.)