A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae) Author Nguyen, Tung T. Author Nguyen, Anh D. Author Tran, Binh T. T. Author Blakemore, Robert J. text Zootaxa 2016 4140 1 1 92 journal article 10.11646/zootaxa.4140.1.1 01995ca4-7d04-4402-b21a-926957b1a391 1175-5326 256507 AD1F6B4E-3B0D-422C-B47C-0495BD385857 Dichogaster affinis (Michaelsen, 1890) Benhamia affinis Michaelsen, 1890b : 9 , Fig. 20. Dichogaster affinis— Michaelsen 1900 : 345 ; Stephenson 1917 : 413 ; Gates 1939 : 109 ; Gates 1942 : 128 ; Gates 1972 : 278 ; Thai 1983 : 122 ; Tran 1985 : 54 ; Do 1994: 118; Nguyen 1994 : 77 ; Le 1995a : 70 ; Thai 2000a : 311 ; Blakemore 2002 : 106 , Figs 1.15–1.16; Huynh 2005a : 134 ; Blakemore 2008; Tran & Tran 2010 : 8 . Dichogaster sinuosus Stephenson, 1931a : 74 , synonymized by Gates (1972) . Dichogaster sinicus Chen, 1938 : 420 , Fig. 18, misspelt with " sinensis " See Blakemore (2002) for synonyms. Type locality. Quilimane , Zanzibar . Type material. Hamburg Museum, Germany . Records from Vietnam. Lai Chau (Khuoi Leng) ; Son La (Song Ma) ; Hoa Binh (Mai Chau) ; Vinh Phuc (Me Linh) ; Quang Ninh (Hon Gai) ; Bac Giang (Luc Ngan) ; Hanoi ; Thua Thien Hue (Phu Loc) ; Kon Tum (Sa Thay) ; Dak Lak ( Yon Don NP ) ; Ninh Thuan (Ninh Son; Ninh Phuoc) ; Binh Thuan (Tuy Phong; Bac Binh) ( Tran 1985 ; Do 1994; Nguyen 1994 ; Le 1995a ; Huynh 2005a ; Tran & Tran 2010 ). Distribution. A cosmopolitan species; reported from various parts of Asia, Central and South America, Africa, Australia and Pacific Isls ( Easton 1984 ; Blakemore 2002 ).