Lumbriculus variegatus (Müller). Černosvitov, 1942: 281; Chen, 1959: 19 (erroneously as L. variegatum); Liang & Xie, 1997: 392; Wang & Liang, 2001: 32; Wang, 2002: 39 –40.
Lumbriculus sp. (?) Chen, 1940: 123.
Material. Lhasa River: ST 10, 40 spms; ST 11, 34 spms. Niyang River: ST 30, 12 spms; ST 32, 22 spms; ST 34, 4 spms; Lalu Wetland: ST 59, 8 spms; ST 61, 10 spms.
Remarks. Numerous specimens were collected, but mature specimens were not found.