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 bolaui ( Michaelsen, 1891 ) Benhamia bolaui Michaelsen, 1891 : 307 , Figs 1–2. Dichogaster bolaui— Michaelsen 1900 : 340 ; Stephenson 1917 : 413 ; Stephenson 1933 : 934 ; Gates 1942 : 129 ; Gates 1972 : 279 ; Thai 1983 : 122 ; Tran 1985 : 53 ; Do 1994: 119; Nguyen 1994 : 78 ; Le 1995a : 72 ; Pham 1995c : 107 ; Thai 2000a : 311 ; Blakemore 2002 : 108 , Figs 1.17–1.18; Thai et al. 2004 : 758 ; Huynh & Nguyen 2004b : 70 ; Huynh 2005a : 137 ; Thai et al. 2007 : 312 ; Blakemore 2008; Nguyen T.T. & Tran 2008 : 61 ; Nguyen et al. 2010: 114; Tran & Tran 2010 : 8 ; Pham 2010 : 62 ; Nguyen & Nguyen 2010: 123; Nguyen et al. 2011 : 1025 ; Nguyen et al. 2012 : 146 ; Nguyen 2013 : 105 ; Nguyen 2014 : 114 . Benhamia octonephra Rosa, 1895 : 2 , synonymized by Michaelsen (1900) . Benhamia palmicola Eisen, 1896 : 132 , figs 43–55, synonymized by Michaelsen (1900) . Benhamia malayana Horst, 1893b : 35 , Plate II, Figs 10–13, synonymized by Stephenson (1933) . See Blakemore (2002) for more synonyms. Type locality. Germany ( Bergedorf near Hamburg ) . Type material. Hamburg Museum, Germany . Records from Vietnam . Dien Bien ( Dien Bien Phu; Tuan Giao) ; Son La (Chieng Hac; Xuan Nha) ; Hoa Binh (Cao Phong) ; Phu Tho (Doan Hung) ; Vinh Phuc (Me Linh; Tam Dao) ; Bac Giang (Hiep Hoa; Tan Yen; Luc Ngan) ; Lang Son (Bac Son) ; Hai Phong ( Cat Ba Isl. ) ; Hanoi ; Nghe An (Quy Chau; Ky Son) ; Quang Binh (Quang Trach) ; Quang Tri (Khe Sanh); Thua Thien Hue ( Bach Ma NP ) ; Da Nang (Son Tra; Hai Van) ; Gia Lai (Buon Luoi) ; Khanh Hoa ( Hon Tre Isl. ) ; Ben Tre (Thanh Phu, Binh Dai) ; Vinh Long (Vung Liem; Long Ho) ; Kien Giang ( Tho Chu Isl. ) ; Dong Thap (Hong Ngu; Thanh Binh) ; Can Tho ( O Mon ; Thot Not; Co Do; Phong Dien; Thoi Lai) ; An Giang (Tinh Bien, Phu Tan, Chau Phu, Chau Thanh, Cho Moi) ; Hau Giang (Phung Hiep) ; Tra Vinh (Chau Thanh, Cau Ke) ; Soc Trang (Vinh Chau) ( Tran 1985 ; Do 1994; Nguyen 1994 ; Le 1995a ; Pham 1995c ; Thai et al. 2004 ; Huynh & Nguyen 2004b ; Huynh 2005a ; Nguyen et al. 2010; Tran & Tran 2010 ; Pham 2010 ; Nguyen 2014 ). Vietnamese name. Giun dạ dày kép bolau. Distribution. A cosmopolitan species; reported from various parts of Asia, America, Europe, Oceania, and Australia ( Blakemore 2002 ).