Amynthas exilisarius exilisarius (Thai, 1984)

Pheretima exilisaria Thai, 1984a: 286, fig. 1B; Le 1995a: 39; Nakamura 1999: 20; Thai 2000a: 308; Huynh & Nguyen 2004a: 115; Huynh et al. 2005: 180.

Pheretima (Terrata) exilisaria— Thai 1983: 123.

Amynthas exilisarius exilisarius— Blakemore 2007a: 35; Blakemore 2008b.

Type locality. Vietnam (Hanoi: Soc Son).

Type material. ZMUM (W.214), Russia.

Examined material. 1 C (SORC-V.045.01) forest at elevation of 900m a.s.l., Tam Quan, Tam Dao, Vinh Phuc, 19/4/1984.

Records from Vietnam. Vinh Phuc (Tam Dao); Hanoi (Soc Son; Ba Vi NP); Phu Tho (Xuan Son NP) (Thai 1984a; Le 1995a; Huynh & Nguyen 2004a; Huynh et al. 2005).

Distribution. Only known from Vietnam.

Remarks. Thai (1983) proposed a new subgenus Terrata of the genus Pheretima, and placed the species under the new subgenus. Blakemore (2007a, 2008b) considered it as " species inquirenda ". Material was re-examined and absence of male copulatory pouches and hence placement of the species in Amynthas is confirmed here.

Amynthas exilisarius ngheanae (Do & Tran, 1994)

Pheretima exilisaria ngheanae Do & Tran, 1994 (in: Do et al. 1994): 24, fig. 1C; Do 1994: 76; Thai 2000a: 308. Amynthas exilisarius ngheanae— Blakemore 2007a: 35; Blakemore 2008b.

Type locality. Vietnam (Nghe An: Que Phong).

Type material. SORC, Vietnam.

Examined material. 3 C, 4 A (SORC-V.046.01), and 3 C (CTU-EW.059.01) near stream on the footprint of Bu Coi Mts, Chau Phong, Quy Chau, Nghe An, 15/5/1988, coll. Tran Minh Khoi; 8 C (SORC-V.046.02) primary forest, Tri Le, Que Phong, 20/12/1987, coll. Tran Minh Khoi.

Records from Vietnam. Nghe An (Que Phong; Quy Chau) (Do 1994).

Distribution. Only known from Vietnam.

Remarks. Blakemore (2007a, 2008b) considered it as " species inquirenda ". Material was re-examined and absence of male copulatory pouches and hence placement of the species in Amynthas is confirmed here.