Metaphire planata (Gates, 1926)

Nguyen, Tung T., Lam, Dang H., Trinh, Binh T. K. & Nguyen, Anh D., 2020, The megascolecid earthworms (Annelida, Oligochaeta, Megascolecidae) in the Phu Quoc island, Vietnam, with descriptions of three new species, ZooKeys 932, pp. 1-25 : 1

Metaphire planata (Gates, 1926) Fig. 8

Material examined.

10 matures (CTU-EW.005.030), industrial tree plantations (10°09'31"N, 104°00'38"E), 25 m, 5 November 2016, coll. Lam HD & Trinh TKB; 21 matures (CTU-EW.005.031), residential gardens (10°12'09"N, 103°58'06"E), 36 m, 5 November 2016, coll. Lam HD & Trinh TKB.

Diagnosis.

Medium-sized. Prostomium epilobous. First dorsal pore in 11/12. Two pairs of spermathecal pores in lateral intersegments 6/7/8. Male pores located inside copulatory pouches in xviii. Genital markings absent in the male region, but 1-3 located near each spermathecal pore. Intestinal caeca simple. Holandric. Testis sacs separated. Accessory glands present, sac-shaped. Septa 8/9/10 absent.

Habitats.

The species was commonly found in residential gardens and industrial tree plantations. They live in leaf litter and upper soil layer.

Vietnamese name.

Giun plana.

Remarks.

The species has been commonly found in southern Vietnam. However, it was erroneously identified as Metaphire californica ( Nguyen 2014, as Pheretima california : sic!; Nguyen et al. 2016, 2017), but recently corrected ( Nguyen et al. 2019). In addition, it has not been recorded from the small islands of Lai Son, An Son, and Hon Tre, which are located between Phu Quoc island and southern Vietnam ( Nguyen et al. 2017).

Figures

Figure 8. Metaphire planata (Gates, 1926) A Male region, ventral view B spermathecal region, lateral view C left spermathecae D right prostatic gland E intestinal caecum. Scale bar: 1 mm.