One such defunct distributary is Wadi Tumilat. The opposite of a distributary is a tributary. After joining the Jamuna, a distributary of Brahmaputra, both rivers form the Ganges Delta. The name for the largest distributary of the Ganges in Bangladesh is the Padma River. Below the Teesta, the Brahmaputra splits into two distributary branches. Below the Tista, the Brahmaputra splits into two distributary branches. The Tha Chin River is the major distributary of the Chao Phraya River. The Padma is joined by the Jamuna River, the largest distributary of the Brahmaputra. Today this channel is a small distributary but retains the name Brahmaputra, sometimes Old Brahmaputra. The Bassac River is the first and main distributary of the Mekong. Their territory ran along Old River a distributary of the San Joaquin River. This Pearl River is the widest distributary within the delta, although notably short. The stage II involved construction of long main canal and distributary canal network of . It lies north of Karaikal, near the mouth of a distributary of the Kaveri River. In Louisiana, the Atchafalaya River is an important distributary of the Mississippi River.