This consists of an oblong mound of sushi rice that is pressed between the palms of the hands, usually with a bit of wasabi, and a topping draped over it.
Gunkanmaki
(Warship rolls). A special type of nigiri-zushi: an oval, hand-formed clump of sushi rice that has a strip of "Nori" wrapped around its perimeter to form a vessel that is filled with some soft, loose or fine-chopped ingredient.
Futomaki (large or fat rolls). A large cylindrical piece, with Nori on the outside. A typical Futomaki is 1.5 inches in diameter. They are often made with two or three fillings that are chosen for their complementary tastes and colors.
Hosomaki (thin rolls). A small cylindrical piece, with the Nori on the outside. A typical Hosomaki has a diameter of about 1 inch. They generally contain only one filling, often tuna, cucumber, kanpyō, thinly sliced carrots, or, more recently, avocado.
Temaki (hand rolls). A large cone-shaped piece of Nori on the outside and the ingredients spilling out the wide end. A typical Temaki is about ten centimeters (4 in) long, and is eaten with fingers because it is too awkward to pick it up with chopsticks. For optimal taste and texture, Temaki must be eaten quickly after being made because the Nori cone soon absorbs moisture from the filling and loses its crispness and becomes somewhat difficult to bite.
Chirashi Sushi
Chirashi Sushi is sushi in a bowl, the Japanese version of a rice salad. this is the easiest to prepare and makes a great lunch. It's base is fresh prepared sushi rice that is mixed with simple flavors like mushroom, ginger,or sesame seeds. The main ingredents are usally arranged on top, but you can also mix them in the rice - this type of sushi is called Gomoko Sushi