Table 1 Description of the sampled localities

1

Loum

4°42′ N, 9°44′ E

34.2

B. truncatus

[61]

2

Matta Barrage

5°57′ N, 11°13′ E

95.2

B. globosus

[30]

3

Bessoum

9°7′30″ N, 13°15′11″ E

83.6

B. globosus

[62]

4

Gounougou

9°4′33″ N, 13°42′25″ E

78.8

B. globosus

[62]

5

Ouroudoukoudje

9°5′53″ N, 13°43′22″ E

77.2

B. globosus

[62]

6

Djiporde

9°29′46″ N, 13°38′23″ E

83.6

B. globosus

[62]

7

Moutourwa

10°11′56″ N, 14°10′40″ E

50–100

B. globosus

[63]

8

Guereme

10°2′48″ N 14°31′45″ E

25–49

Unknown

[63]

9

Gawaza

10°13′0″ N 14°51′0″ E

25–49

Unknown

[63]

10

Mokolo

10°44′9″ N, 13°46′33″ E

25–49

B. truncatus

[63]