Table 2.

Morphological comparison between Euplotes vanleeuwenhoeki sp. nov. and selected congeners.

Character	Euplotes vanleeuwenhoeki	E. trisulcatus	E. antarcticus	E. euryhalinus	E. charon	E. magnicirratus
Body size in vivo (µm)	40–58 × 25–38	35–50 × 25–40	90–145 × 30–80	50–62 × 26–38	70–100 × 65–90	51–65 × 36–44
Body shape	Elongated ellipsoidal; posterior end rounded	Elongated ellipsoidal; posterior end pointed	Elongated ellipsoidal; posterior end rounded	Elongated oval; posterior end pointed	Oval; posterior end rounded	Oval; posterior end rounded
Peristome (% of the body length)	63	75	65	67	75	75
Number, type of dorsal structures	3, prominent furrows	3, prominent furrows	7–10, prominent DR	Several, inconspicious DR	7, prominent DR	Several, prominent DR
Number of membranelles in AZM	22–29	25–36	46–56	26–28	51–60	49–52
Dargyrome type	Double-eurystomus	Double-eurystomus	Double-eurystomus	Double-eurystomus	Double-eurystomus	Double-eurystomus
Number of dorsolateral kineties	7–8	7	10–11	10	9–10	8
Number of dikinetids in mid-dorsal row	13–14	7–10	11–21	10	22	13–17
Number of FVC	10	10	10	10	10	10
Number of TC	5	5	5	5	5	5
Number of CC	2	2	3–4	2–3	2–4	2
Number of MC	2	2	2	2	2	2
Habitat	Freshwater	Marine	Marine	Euryhaline	Marine	Marine
References	This study	60	59	61	62,63	60

AZM adoral zone of membranelles, CC caudal cirri, DR dorsal ridge, FVC frontoventral cirri, MC marginal cirri, TC transverse cirri.