Apparently the ingredients that go into a New York roll are not set in stone; they vary from restaurant to restaurant.
"The "New York roll" is a recent "sushi bar" invention to counter the popular "California roll" (avocado, crabmeat, mayonnaise encased in rice).

"New York Roll"" was a subject on the internet group "alt.food sushi" in December 1997. One person said the New York roll has "crab, cucumber, tobiko, mayo sauce." Another remarked: "I have had a NY Roll - Smoked salmon skin, cream cheese and assorted veggies. Not bad - reminded me of a bagel with lox - just with out the bagel." Another comment: "Here in New York City, the most persistent incarnation of this roll I've observed contains smoked salmon and avocado, served inside out with sesame seeds on the outside."

One person in the December 1997 "alt.food.sushi" discussion added: "But I have seen NY Rolls that add in Apple (as in 'The Big Apple')."

The "New York Roll" ingredients are not standard. Here are some ingredients for the "New York Roll," as described on web sites:

.smoked salmon, avocado %26 mayo.
.smoked salmon, cream cheese and cucumber.
.smoked salmon, cream cheese and onion slice.
.smoked salmon, cream cheese and scallions.
.smoked salmon, shiso and scallion.
.smoked salmon skin and scallions.
.salmon skin, cucumber and scallions wrapped with seaweed and rice.
.cooked salmon, apple, mayonnaise.
.crab, smoked tuna and cream cheese.
.tuna, crab stick, avocado, cucumber.
.apple, avocado and tuna.
.apple, tuna, crab cake, avocado and flying fish roe.
.apple, mayo, cucumber and tobiko.
.cooked prawns, cucumber, avocado.
.shrimp, avocado.
.cooked shrimps, avocado, cucumber and tobiko.
.shrimp, cream cheese and avocado."
http://www.barrypopik.com/index.php/new_...