Amynthas acalifornicus ( Do & Huynh, 1991 ) Do & Huynh, 1991

Nguyen, Tung T., Nguyen, Anh D., Tran, Binh T. T. & Blakemore, Robert J., 2016, A comprehensive checklist of earthworm species and subspecies from Vietnam (Annelida: Clitellata: Oligochaeta: Almidae, Eudrilidae, Glossoscolecidae, Lumbricidae, Megascolecidae, Moniligastridae, Ocnerodrilidae, Octochaetidae), Zootaxa 4140 (1), pp. 1-92 : 12

Amynthas acalifornicus ( Do & Huynh, 1991) comb. nov.

Pheretima acalifornica Do & Huynh, 1991 (in: Do et al. 1991): 56, fig. 4D; Do 1994: 54; Thai 2000a: 307; Huynh et al. 2005: 180.

Metaphire ? acalifornica— Blakemore 2007a: 3; Blakemore 2008b.

Type locality. Vietnam (Son La: Moc Chau ).

Type material. 1 A (SORC-V.002.01) Son La, Moc Chau , humid forest, 15/05/1991 ; 3 C (SORC-V.002.02) Son La, Moc Chau , forest, 12/04/1990 ; 1 C (SORC-V.002.03) Son La, Moc Chau , forest on limestone, 13/04/1990 .

Records from Vietnam. Son La (Moc Chau) ; Phu Tho (Xuan Son NP) ; Ninh Binh (Cuc Phuong NP) (Do 1994; Huynh et al. 2005).

Distribution. Only known from Vietnam.

Remarks. The species is fairly similar to Metaphire californica ( Kinberg, 1867) , but differs in lack of copulatory pouches, having a pair of large genital markings on viii, and one or two pairs of genital markings in the male region. Blakemore (2007a) assigned this species to the genus Metaphire with comments " species inquirenda ". The species assigned here to the genus Amynthas because of lack of copulatory pouches.