In New Zealand (NZ) [is that an accepted abbreviation in this forum?], we do (or did, at least when I was a kid) use the term "cats eye" to refer to a particular type of marble, but not the ones pictured above.
I'm sure marble names are highly regional (within each school, probably!). For us, cats eyes were opaque black with one thin "cat-pupil-like" line of colouration.
Yes, marbles. As I recall, there were a lot of regional variations in the names of various marbles. We just used to call those particular marbles "marbles", but the opaque white ones with little bits of colour we called "milkies".