Updated Table 4: Species richness and subregional endemism by geography and family

This page summarizes the current data on the richness and endemism of freshwater mussel species in each biographical region and subregion, broken down by family.

These data update Table 4 of Graf & Cummings (2021).

Numbers within parentheses indicate the richness of endemic species in each subregion. Family abbreviations: UN, Unionidae; MA, Margaritiferidae; HY, Hyriidae; ET, Etheriidae; MY, Mycetopodidae; IR, Iridinidae.

For a more detailed summary of species and genus richness by taxonomy, see Updated Table 3: Richness of species and genera arranged by taxonomy and region.

Region

Unionida

UN

MA

HY

ET

MY

IR

global

1019

811

16

94

4

55

39

North America

314

309

5

—

—

—

—

NA1

13 (0)

13 (0)

—

—

—

—

—

NA2

153 (98)

151 (97)

2 (1)

—

—

—

—

NA3

68 (40)

67 (40)

1 (0)

—

—

—

—

NA4

157 (106)

155 (104)

2 (2)

—

—

—

—

NA5

8 (5)

7 (5)

1 (0)

—

—

—

—

Central America

66

58

—

—

—

8

—

CA1

66 (60)

58 (56)

—

—

—

8 (4)

—

South America

118

—

—

65

2

51

—

SA1

12 (5)

—

—

1 (1)

1 (1)

10 (3)

—

SA2

33 (20)

—

—

15 (10)

—

18 (10)

—

SA3

37 (12)

—

—

14 (5)

1 (0)

22 (7)

—

SA4

17 (4)

—

—

8 (2)

—

9 (2)

—

SA5

63 (42)

—

—

39 (32)

1 (0)

23 (10)

—

SA6

3 (2)

—

—

2 (2)

—

1 (0)

—

Afrotropics

81

41

—

—

1

—

39

AF1

26 (16)

13 (11)

—

—

1 (0)

—

12 (5)

AF2

18 (8)

4 (2)

—

—

1 (0)

—

13 (6)

AF3

36 (29)

19 (19)

—

—

1 (0)

—

16 (10)

AF4

16 (11)

5 (4)

—

—

1 (0)

—

10 (7)

AF5

6 (1)

2 (1)

—

—

1 (0)

—

3 (0)

AF6

2 (1)

1 (1)

—

—

1 (0)

—

—

North Eurasia

47

43

4

—

—

—

—

EU1

35 (27)

32 (25)

3 (2)

—

—

—

—

EU2

16 (11)

15 (10)

1 (1)

—

—

—

—

EU3

3 (0)

3 (0)

—

—

—

—

—

East Asia

379

370

8

—

1

—

—

AS1

3 (0)

2 (0)

1 (0)

—

—

—

—

AS2

27 (14)

26 (13)

1 (1)

—

—

—

—

AS3

28 (19)

26 (18)

2 (1)

—

—

—

—

AS4

94 (68)

92 (66)

2 (2)

—

—

—

—

AS5

159 (134)

156 (131)

3 (3)

—

—

—

—

AS6

32 (25)

32 (25)

—

—

—

—

—

AS7

85 (80)

84 (79)

—

—

1 (1)

—

—

Australasia

31

2

—

29

—

—

—

AU1

14 (11)

—

—

14 (11)

—

—

—

AU2

7 (5)

—

—

7 (5)

—

—

—

AU3

11 (9)

2 (2)

—

9 (7)

—

—

—

AU4

3 (3)

—

—

3 (3)

—

—

—