Who holds the record for highest individual Test score for each nation?

Bangladesh's Towhid Hridoy scored an unbeaten 242 against West Indies on Saturday, registering his country's highest individual Test score. West Indies' Brian Lara holds the overall record with 400, followed by Australia's Matthew Hayden (380). Mahela Jayawardene's 374 if the highest-ever score by a Sri Lankan, while India's record belongs to Virender Sehwag (319).