TABLE 3. A in A new earthworm species of the genus Amynthas (Clitellata: Megascolecidae) from northern Taiwan, false synonymy between Amynthas corticis (Kinberg, 1867) and Amynthas sheni (Chen, 1935) and other taxonomic issues relating to A. corticis

TABLE 3. A comparison of characters among Amynthas popi sp. nov., A. corticis (Kinberg, 1867), A. carnosus (Goto & Hatai, 1899), A. biorbis Tsai & Shen, 2010, A. shengtangmontis Dong & Jiang, 2019, and A. gageodo Blakemore, 2012. Data from the original descriptions except those for A. corticis and A. carnosus.
Amynthas popiAmynthas corticisAmynthas carnosusAmynthas biorbisAmynthas shengtangmontisAmynthas gageodosp. nov.(Kinberg, 1867)(Goto & Hatai, 1899)Tsai & Shen, 2010Dong & Jiang, 2019Blakemore, 2012Localitynorthern TaiwancosmopolitanJapan, Korea, Chinaeastern Taiwansouthern ChinaSouth KoreaLength (mm)210–31645–1701110–340261–86100–134150–170Clitellum width (mm)7.25–8.63–614–922.63–3.324.2–5.1–Segments138–15079–1211106–179272–97116–13891First dorsal pore12/1310/11, 11/12 or 12/13112/13211/1212/1312/13Setal numberVII54–6026–46 (VIII)140–63 (IX)333–4026–32 (VIII)–XX63–9239–541–41–4833–4066–74between male pores12–158–16112–2638–128–11–Genital papillae preclitellarclosely or widely paired in presetal VIIIabsent or widely paired or unpaired in presetal VI–IX with or without one anterior or posterior to each spermathecal poreclosely or widely paired in presetal VIII–IXabsentwidely paired in presetal VI–IXclosely paired in presetal VIII–XI and widely paired in postsetal VIII–IXpostclitellarone medial to each male pore in postsetal XVIII; widely paired in postsetal XIX, and occasionally with an additional pair in presetal XIX0–3 around each male poreone medial to each male pore in postsetal XVIII; paired in presetal XVIII–XIXabsent or one medial to each male pore in postsetal XVIIIone medial to each male pore in postsetal XVIIIclosely paired in presetal XVII–XX and widely paired in postsetal XVIII–XXHeartsXI–XIIIXI–XIIIlast in XIII3XI–XIIIX–XIIIX–XIIISpermathecaeVI–IXVI–IXVI–IX or VII–IX2VI–IXVI–IX, diverticulum longVI–IXSeminal vesiclessmallsmallvariable in size3smallwell-developedmoderately largeProstate glandscompact in XVIIIabsent or rudimentarylarge in 1/2XVI–XIX3Large in XVI–XXXV–XXII–Prostatic ductsshort, stout, horizontal in XVIIIC- or U-shaped in XVIIIU-shaped in XVIII3U-shaped in XVIIIU-shaped–Accessory glandsabsentstalkedround3large, sessilestalkedsmall, sessile
1 Data from Gates (1972).
2 Data from Chang et al. (2016).
3 Data from Kobayashi (1936).