The Taittirīya Shakha (Sanskrit, loosely meaning 'Branch or School of the sage Tittiri'), is a shakha (i.e. 'branch', 'school', or rescension) of the Krishna (black) Yajurveda. Most prevalent in South India, it consists of the Taittirīya Samhita ('TS'), Taittirīya Brahmana ('TB'), Taittirīya Aranyaka ('TA'), and Taittirīya Pratisakhya ('TP').