Soba : Japanese buckwheat noodles made of pure buckwheat, buckwheat and wheat, or wheat and tea for matcha soba. Do not confuse with *chuka soba* and *yaki soba* which are ramen (Chinese style noodles).
More about noodle types :
Guided tour of my soba closet
Classics :
Ikura tororo soba – fishy, creamy, chewy
Iwashi soba . Sardine soba-soup
Toshikiri-soba is Japanese New-Year kiss
Many variations :