The National Pokédex is not available at the start of the games, but it can be unlocked by completing certain tasks. The National Pokédex (Japanese: 全国図鑑 national illustrated encyclopedia) is a Pokédex that has been upgraded with the National Mode (Japanese: 全国版 National Edition) that records information on all Pokémon known to exist, instead of just ones native in a particular region.
Cyndaquil, at #155, is the fourth Pokémon introduced in Generation II. Pokémon Brilliant Diamond and Shining PearlĮach new generation begins its numbering from the end of the last generation.