Amynthas dangi ( Thai, 1984 )

Grzelak, Katarzyna & Sørensen, Martin V., 2022, Echinoderes blazeji Grzelak & amp; Sørensen 2022, sp. nov., Zoological Studies 55 (52), pp. 1-13 : 2

Amynthas dangi ( Thai, 1984)

( Fig. 1 , Table 1)

Pheretima dangi Thai, 1984: 1325 , fig. 4B.

Amynthas dangi dangi - Blakemore 2007: 27; Nguyen et al. 2016

Material examined: 1 mature ( CTUEW.078.01) Ba Vi Mt., Hanoi, 9/1992, coll. Khiem; 1 mature ( CTU-EW.078.03) the temple of Hung Vuong King, Doan Hung District, Phu Tho province, 29/4/2007, coll. Vu Quang Manh.

Diagnosis: Large-size worm, length> 300 mm, diameter ca. 13-17 mm. First dorsal pore in 11/12. Prostomium epilobous. Spermathecal pores ventrally paired in intersegmental furrows 7/8/9. Male pores located in xviii, without copulatory pouches. Genital makings absent on spermathecal region, but three pairs in xviii and xix. Holandric. Spermathecal ampulla egg-shaped, duct absent. Testis sacs separated. Intestinal caeca manicate. Septa 8/9/10 absent.

Distribution: Phu Tho (Doan Hung); Vinh Phuc (Tam Dao NP); Lang Son (Huu Lung); Hanoi (Soc Son) ( Thai 1984; Le 1995; Nguyen et al. 2016).

Remarks: An endemic species to Vietnam.

Figures

Fig. 1. Amynthas dangi (Thai, 1984) from Phu Tho (CTU-EW.078.03). A, E: Male pore region, ventral view (mp = male pore; gm = gential markings); B: Spermathecal region, ventral view (sp = spermathecal pore); C, G: Spermathecae (amp = ampulla; dv = diverticula); D, I: Prostatic gland (ag = accessory gland); F, H: Intestinal caeca. Scale bar = 1 mm.