Is there a grammatical term for "cat, dog, and mouse" as opposed to "cat and dog and mouse"?

Question

the use of "," and "and" before the last article
vs.
using "__ and __ and __"

is there a grammatical word for using commas, or a grammatical word for using "and" repeatedly?

no, not the animals themselves, i meant the grammatical structure of the sentence
like
x, y, z
as opposed to
x and y and z

Answer 1

The former is known primarily as "serial commas" -- but also known as Oxford commas or Harvard commas.

The latter I would guess is called "serial ands", but I don't know if it has a formal name.

Answer 2

No, its just easier to read and looks better with out too many "ands". (and is a conjunction.)

Answer 3

the only ones i know of are cannine feline ,and rodent hope this is what you are looking for gorbalizer