OK...I'm redesigning my favorite sushi restaurant's menu and last
weekend was the photo shoot. For the sushi portion of the menu, I took
a picture of this jpg. On the left hand side top to bottom is salmon
(sake), white tuna, shrimp and octopus. The right hand side is squid,
tuna, red snapper and crab.

The white tuna I am familiar with is extremely snow blind white, very
oily (when it touches my wasabi/soy sauce mixture it leaves a thin film
of oil) and when served very cold resembles yellow tail in consistency.

http://www.mynameislegion.com/sushi.jpg

Mark