Metaphire houlleti (Perrier, 1872)

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 houlleti (Perrier, 1872) Fig. 6

Material examined.

10 matures (CTU-EW.006.29), industrial tree plantations (10°06'11"N, 104°00'51"E), 20 m, 5 November 2016, coll. Lam HD & Trinh TKB; 15 matures (CTU-EW.018.024), residential gardens (10°16'04"N, 103°56'28"E), 6 November 2016, coll. Lam HD & Trinh TKB; 7 matures (CTU-EW.018.025), natural forests (10°22'53"N, 104°00'22"E), 38 m, 07 November 2016, coll. Lam HD & Trinh TKB.

Diagnosis.

Medium-sized. Prostomium epilobous. First dorsal pore in 11/12. Three pairs of spermathecal pores in lateroventral intersegments 6/7/8/9. Male pores located inside copulatory pouches in xviii. Two to four penial setae. Intestinal caeca simple. No genital markings. Holandric. Testis sacs connected. Septa 8/9/10 absent.

Habitats.

The species was found mainly in industrial tree plantations and residential gardens. It was collected in leaf litter and sometimes in upper soil surface (0-10 cm).

Remarks.

The specimens collected in Phu Quoc island have the seta a on segments iii-v being bigger than that on other segments.

Vietnamese name.

Giun houllet.

Figures

Figure 6. Metaphire houlleti (Perrier, 1872) A Male region, ventral view B spermathecal region, lateral view C left spermatheca D left prostatic gland E intestinal caecum. Scale bar: 1 mm.