Polypheretima elongata (Perrier, 1872)

Perichaeta elongata Perrier, 1872: 124, Plate IV, Fig. 70; Beddard 1895a: 431.

Metapheretima elongata— Sims & Easton 1972: 233.

Polypheretima elongata— Easton 1979: 53, Fig. 22a; Easton 1981: 61; Nakamura 1999: 7; Blakemore 2002: 231, Fig. 2.19; Blakemore 2007a: 32; Blakemore 2008b; Tran & Tran 2010: 8; Nguyen et al. 2014: 114, Fig. 4.

Pheretima (Polypheretima) elongata— Thai 1983: 126.

Pheretima elongata— Michaelsen 1900: 265; Gates 1972: 182; Thai 1987: 7; Thai 2000a: 310; Huynh 2005a: 131; Thai et al. 2007: 312; Nguyen T.T. & Tran 2008: 61; Nguyen et al. 2010: 114; Nguyen & Nguyen 2010: 123; Nguyen & Huynh 2011: 1018; Nguyen et al. 2012: 146; Nguyen 2014: 112.

Perichaeta biserialis Perrier, 1875: 1044 .

Perichaeta acystis Beddard, 1895a: 423 .

See Easton (1976: 40–41) and Blakemore (2002) for more synonyms.

Type locality. Peru.

Type material. MNHN (AE 633–646), France.

Examined material. 9 C (CTU-EW.026.01) Vinh Long Prov., Vung Liem Distr., 10/2008, coll. Nguyen Thi Nhi.

Records from Vietnam. Bac Giang (Tan Yen; Luc Ngan); Lang Son (Dong Mo, Chi Lang); Quang Ninh (Tien Yen); Hai Phong (Cat Ba and Cat Hai Isls); Dien Bien (Dien Bien city); Son La (Song Ma); Nghe An (Ky Son); Hanoi; Hai Duong; Hung Yen; Ha Nam; Nam Dinh; Ninh Binh; Quang Binh (Quang Trach; Dong Hoi); Quang Tri (Dong Ha; Quang Tri); Thua Thien Hue (Hue; Phu Loc); Binh Dinh; Ninh Thuan (Phan Rang; Ninh Son; Song Pha; Ninh Hai); Binh Thuan (Bac Binh; Tuy Phong; Phan Ri); Ben Tre (Binh Dai; Thanh Phu; Cho Lach; Ba Tri); Can Tho (Can Tho); Vinh Long; Dong Thap; Tien Giang; An Giang; Tra Vinh; Soc Trang; Ca Mau (Do & Le 1992; Le 1995a; Do 1994; Tran 1985; Nguyen 1994; Huynh 1996; Thai 1987; Nguyen T.T. & Tran 2008; Tran & Tran 2010; Nguyen et al. 2010; Nguyen 2014; Nguyen et al. 2014).

Distribution. A cosmopolitan species, widely found from various parts of the world (Blakemore 2002, 2007a).

Vietnamese name. Trùn dài.

Remarks. Polypheretima elongata is an exotic species originating from the Indonesian region (Easton 1976), and commonly found in the Indochinese region (Thai 1983).