Nearly 50 years later, Hirayama (1997) postulated that P. galeotergum and P. matutina were junior synonyms of P. nauta but did not provide any justification for this systematic revision.
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...