E. n. nordenskioldi Eisen, 1879 *	E. n. caucasica Michaelsen, 1903	E. n. acystis Michaelsen, 1903	E. n. manshurica Kobayashi, 1940	E. n. mongol Blakemore, 2013	E. n. polypapillata Perel, 1969	E. n. onon Blakemore, 2013	E. n. shenzi ssp. nov.	E. n. jilinensis ssp. nov.	E. n. chinensis ssp. nov.
Length (mm)	25−45 (44–120*)	110	-	111−144	80−110	65−70	100	38−81	40−49	30−50
Diameter	-	4	-	-	-	4-5	-	5.32−6.5	3.57−4.11	3.9−5.1
Segment	106–125 (101– 176*)	107	126	154-175	131–142	102–137	170	78-156	98-127	92-127
Color	Dark puce to pale	D: single-colored, dark, viole-red.	unpigmented,	Dark pigment	Pink-grey	Pale	Reddish pink anterior-dorsum to segment xv otherwise unpigmented	Entire dorsal side is dark-purple except the clitellum (xxv,xxvi −xxxiii), which is gray; Ventro-anterior to xv is purple,>xv is pale	Dorso-anterior to xv pinkish,>xv gradually paling V:pale	D:pale V:pale
Clitellum	xxvi,xxvii−xxxiii	xxiv, xxv−xxxiii	xxvi−xxxiii	xxvi, xxvii−xxxiv	½xxv, xxvi−xxxiii	xxvi, xxvii−xxxii	pale from xxiv dorsally or laterally xxv−xxxiii, i.e., xxiv, xxv−xxxiii	xxv,xxvi−xxxiii	½ xxvi,xxvii−xxxiii	½ xxvi,xxvii−xxxii or xxvi,xxvii−xxxiii
TP	xxix−xxxi	xxvii, xxviii−xxxi or xxviii−½xxxii	xxix−½xxxi	xxix−xxxii	xxix−xxxi	½xxviii, xxix−½xxxi,xxxi	xxviii−xxxi	½xxviii,xxix−xxxi	xxviii,xxix−xxxi or xxix−½xxxii	xxviii,xxix−xxxi or ½xxviii,xxix-½xxxii
Papillae	ab viii,xxvii-xxxi	-	-	ab xxii-xxxv	-	ab xvi-xviii,xxi-xxiii,xxvi,xxxii-xxxiv	-	ab vii-xii cd viii-xii	no	ab viii,xi-xiii cd ix-xiii
Gizzard	-	-	-	-	-	-	xvii−xviii	xvii−xviii,xix	xvii−xviii	xvii−xviii
Setal ratio on segment viii	-	-	-	-	-	-	-	aa:ab:bc:cd:dd = 1.95: 0.34: 1.54: 0.27: 6.30	aa:ab:bc:cd:dd = 1.20: 0.19: 0.92: 0.19: 3.98	aa:ab:bc:cd:dd = 1.48: 0.22: 1.13: 0.21: 4.18
Setal ratio on segment xxviii	-	-	-	-	-	-	-	aa:ab:bc:cd:dd = 3.23: 0.33: 1.39: 0.24: 5.50	aa:ab:bc:cd:dd = 1.96: 0.24: 1.29: 0.17: 4.02	aa:ab:bc:cd:dd = 2.33: 0.32: 1.32: 0.20: 4.25
Setal ratio on segment xli	-	-	-	-	-	-	-	aa:ab:bc:cd:dd = 2.46: 0.29: 1.77: 0.25: 5.31	aa:ab:bc:cd:dd = 1.82: 0.26: 1.22: 0.16: 3.97	aa:ab:bc:cd:dd = 2.00: 0.26: 1.47: 0.22: 3.68