Chukamen noodles which are generally made with wheat flour and kansui (alkaline solution) are used for ramen dishes. There are many regional speciality ramen available in Japan. They are different in broth, soup flavors, toppings, noodle texture, and more.
Shirataki (白滝, often written with the hiragana しらたき) are thin, translucent, gelatinous traditional Japanese noodles made from the konjac yam (devil's tongue yam or elephant yam). The word "shirataki" means "white waterfall", describing the appearance of these noodles.