Polypheretima parataprobanae

Nguyen, Tung T., Tran, Binh T. T. & Nguyen, Anh D., 2014, Earthworms of the ' acaecate' Pheretima group in Vietnam (Oligochaeta: Megascolecidae), with description of a new species from the Mekong delta, Zootaxa 3866 (1), pp. 105-121 : 116

Polypheretima parataprobanae ( Thai & Nguyen, 1993)

( Fig. 3 )

Pheretima parataprobanae Thai & Nguyen, 1993: 7, Fig. 1 C. Polypheretima parataprobanae — Blakemore 2007: 77.

Type material. Holotype: 1C (SORC-HV.225) Thua Thien Hue province, Hue city, Nguyet Bieu, sandy garden, 13 January 1985, coll. Nguyen Van Thuan. Paratypes: 1C, 1A, same data as holotype ( Nguyen 1993).

Description. Medium size, body cylindrical, colour pale. Prostomium prolobous. First dorsal pore in 12/13. Setae numerous, regularly distributed on segments, 104–126 in V, 124–134 in VIII, (64–78) + (18–22) in XVIII, 104–120 in XIX, 96–110 in XXV, aa≥ab, zz=1–1.5zy. Porophores raising strongly with small slits around the foot. No genital markings in male region. Spermathecal pores 1 pair ventral in 7/8. Genital markings oval-shaped, one pair, presetal on VIII. Ampulla heart-shaped, ducts short and small, diverticula short, attaching to ducts. Testes sacs ventral, not separated. Protate glands slightly lobuled. Typhlosole lamelliform, T=0.03. Intestine beginning at XVI, without caeca. Septa 5/6/7/8 thickened, 8/9/10 absent. (Data from Nguyen 1993: 7.)

Records from Vietnam. Thua Thien Hue Province (Hue city, Bach Ma National Park); Da Nang city (Hoa Vang) ( Nguyen 1993) ( Pham 1995a).

Distribution. Only known from Vietnam.

Remarks. The species is fairly similar to Polypheretima taprobanae ( Beddard, 1892) , but differs in absence of genital markings in the male region, and having a pair of genital markings near the spermathecal pores. Types were rechecked for this study.

Figures

FIGURE 1. Distribution of species of the genus Metapheretima in Vietnam.

FIGURE 3. Distribution of species of the genus Polypheretima in Vietnam. The exotic Po. elongata with many records all over the country is omitted.