Table 3 Comparison of E. chongmingensis n. sp. with its related congeners with cirrotype-10, two marginal cirri and a double type silverline system

Cell size in vivo (μm)

40–50 × 25–35

45–55 × 35–45

40–50 × 25–30

50–70

49.1 ± 4.7 × 32.7 ± 3.8

49–52 × 40–46

Habitat

freshwater

freshwater

soil

freshwater

freshwater

freshwater

No. of AM

22–26

25–35

18–24

25–30

22–29

20–25

No. of DK

8

8

7

8

7–8

7

No. of DK_mid

11–16

11–14

7–12

ca. 23^b

13–14

11–16

Macronucleus

C-shaped

C-shaped^b

C-shaped

C-shaped

C-shaped or 3-shaped

C-shaped

Special features

lower marginal cirrus conspicuously small

cirri IV/2 and V/2 small; transverse cirri in two groups

cirri V/2 and VI/2 highly reduced; indistinct gap separating transverse cirri into two groups

^a

Three dorsal longitudinal furrows

^a

Data source

Present paper

[32]

[24]

[33]

[31]

[30]