Table 2. A in Three new species and one subspecies of the Amynthas corticis - group from Guangxi Zhuang Autonomous Region, China (Oligochaeta, Megascolecidae)

Table 2. A comparison of characters of A. maximus sp. nov., A. dorsualis, 2013, A. carnosus, A. corticis and A. wulinensis.
CharacteristicsA. maximus sp. nov.A. dorsualisA. carnosusA. corticisA. wulinensisBody length (mm)145-170121-?110-34045-170128-174Body width (mm)5.8-6.22.7-?4.0-9.03.0-6.05.6-6.1PigmentdorsumLight purple brown before clitellum, from light purple brown to brown afterDark grey before clitellum, dark brown afterDark brown or purpleGreenish brownWhitish purpleventrumNo pigment before clitellum, yellowish afterLight grey before VII, no pigment afterDark brown or purpleNoWhitish grayFirst dorsal pore13/1413/1412/1310/11 or 12/13, usually at 11/1211/12Clitellum locality2/5 XIV–XVI1/10XIV-7/10XVIXIV–XVIXIV–XVI, occasionally shorterXIV–XVISpermathecal pores4 pairs, in 5/6-8/9, 0.33C4 pairs, in 5/6-8/9, dorsally, 0.6C4 pairs in 5/6-8/9 or 3 pairs in 6/7-8/9, 0.33C4 pairs, 5/6-8/9, 0.33C4 pairs, 5/6-8/9, ventral, 0.29CMale poresMiddle, round, surrounded by 3-4 circular ridges, 0.4CSlightly raised, glandular, surrounded by 5-6 elliptic circular folds, 0.33CRound or ellipticSmall, circular to transverse elliptical disc, 0.24-0.30CRound or oval-shaped on setal line with depressed center, 2-3 circular folds, 0.24-0.28CPapillae preclitellum7-8 post-setal indented-topped genital papillae arranged in two rows in VI–IXInvisible8 papillae just overhead 8 spermathecal pores, 2 pairs preclitellar arranged on VIII and IXPaired presetal and/or postsetal in some or all, near spermathecal poresAbsentPapillae postclitellum2 presetal indented-topped genital papillae medial of porophoreInvisible2 paired presetal genital on XVIII and IX, 1 pair postsetal genital on XVIIIPresent or absent, occasionally one or more near male poreOval-shaped, medial to male pore in each of XVII and XIX, occasionally XXProstate glandsXVII–XIXXVI–XXWell developedXVII–XX, rudimentary or absentXV–XX, racemose, follicularSpermathecaeAbout 1.6 mm long, ampulla long-oval; duct as long as 3/5 ampullaAbout 2.2 mm long, ampulla heart-shaped; duct as long as 2/5 ampullaAmpulla oval or pear-shaped, duct equal to or slightly shorter than ampullaAmpulla ovoidVery short and stout stalkDiverticulumShorter, lightly twist in middle, terminal 2/5, swollen, club-shaped seminal chamberShorter, terminal 1/5, ovoid plump seminal chamberOne-third to half of ampulla, slender stalk and a wider seminal chamberBlunt ovioid, straight stalkOval, shining white seminal chamber, a slender and straight stalkAccessory glands1 or 2 stalked accessory glands observed near ventral median line in VI, VII, VIII, IXInvisible-Stalked, coelomic, bound down to parietes or retained within body wallPaired in XVII and XIX, sessile, flowery