Table 3 Morphometric characters of adult Transversotrema hafniensis n. sp. specimens. Comparison with other freshwater species within the genus Transversotrema based on measurements (range (mean) in microns (µm). Figures in bold show characteristic size differences of T. hafniensis n. sp. compared to other freshwater species within the genus

Geographic location

Denmark

Sri Lanka

Philippines

India

India

India

India

Australia

Japan

California

Puerto Rico

Author

Present study

Crusz & Sathananthan (1960)

Velasquez (1961)

Murty & Hanumantha (1968)

Pande & Shukla (1972)

Mohandas (1973)

Agrawal & Singh (1981)

Cribb et al. (1992)

Maneepitaksanti & Nagasawa 2012

Womble et al. 2015

Perales Macedo et al. 2022

Reference

–

19

20

15

16

17

18

12

21

13

22

Body length

565–620 (589)

306–323

250–550 (390)

312–375 (352)

375–675

400–460

300–440

361–503 (420)

300–405 (339)

400–530 (461)

224–613 (417)

Body width

1100–1380 (1240)

612–700

460–900 (680)

680–732 (720)

735–1437

626–950

640–710

789–947 (882)

640–870 (730)

820–1060 (967)

567–1212 (758)

Pharynx

Length

100–110 (104)

48–50

40–50 (45)

36–52

58–97

55–70

40–50

59–79 (68)

50–68 (58)

63–88 (72)

34–96 (63)

Pharynx width

90–100 (98)

–

–

36–60

58–115

–

50–60

59–69 (64)

50–70 (56)

65–90 (77)

37–104 (68)

Ventral sucker Length

100–120 (110)

102

70–90 (80)

60–84

119–141

100–135

28–30

119–151 (140)

90–120 (110)

108–128 (117)

60–120 (96)

Ventral sucker width

100–120 (110)

–

–

–

–

–

–

131–156 (147)

97–118 (108)

115–133 (121)

63–125 (99)

Egg length

120–170 (145)

–

125–150 (138)

112–130 (120)

140–178

125–160

30–33

119–141 (129)

120–125 (123)

110–143 (131)

107—189 (141)

Egg width

80–110 (95)

–

46–81 (63)

44–60 (56)

68–109

50–75

25–29

67–75 (73)

90–107 (99)

38–48 (44)

41–96 (70)