Hosomaki (細巻, "thin rolls")
Hosomaki (細巻, "thin rolls") is a small cylindrical piece, with the nori on the outside. A typical hosomaki has a diameter of about two and a half centimeters (1 in). They generally contain only one filling, often tuna, cucumber, kanpyō, thinly sliced carrots, or, more recently, avocado. Kappamaki, (河童巻) a kind of Hosomaki filled with cucumber, is named after the Japanese legendary water imp fond of cucumbers called the kappa. Traditionally, Kappamaki is consumed to clear the palate between eating raw fish and other kinds of food, so that the flavors of the fish are distinct from the tastes of other foods. Tekkamaki (鉄火巻) is a kind of Hosomaki filled with raw tuna. Although some[who?] believe that the name "Tekka", meaning 'red hot iron', alludes to the color of the tuna flesh or salmon flesh, it actually originated as a quick snack to eat in gambling dens called "Tekkaba" (鉄火場), much like the sandwich. Negitoromaki (ねぎとろ巻) is a kind of Hosomaki filled with scallion (negi) and chopped tuna (toro). Fatty tuna is often used in this style. Tsunamayomaki (ツナマヨ巻) is a kind of Hosomaki filled with canned tuna tossed with mayonnaise.