Brakish (found in the river mud along the rivers discharging into the estuaries of the Bay of Bengal)
Main References:
Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M (eds.) (2008) Encyclopedia of Flora and Fauna of Bangladesh,Vol. 15. Platyhelminthes- Nematoda. Asiatic Society of Bangladesh,Dhaka.325pp.