Table 6 The number of mandibular and maxillary teeth (average ± standard deviation) and the ratio M/M of mandibular vs. maxillary teeth

C. pulicaris

10

18

16.7 ± 1.2^C

17

19.5 ± 1.1^C

1.17 ± 0.08^A

1.2 ± 0.3 ^AC

C. punctatus

10

20

15.7 ± 1.2 ^B

18

19.6 ± 1.0^C

1.26 ± 0.14 ^B

0.9 ± 0.5 ^C

C. boyi

11

21

15.1 ± 1.2 ^B

19

17.1 ± 1.4 ^E

1.13 ± 0.10 ^A

1.5 ± 0.2 ^BDF

C. deltus

5

10

15.8 ± 0.6 ^CB

7

18.1 ± 1.5 ^B

1.15 ± 0.08 ^A

1.7 ± 0.4^BD

C. newsteadi

5

10

13.4 ± 1.4 ^A

8

15.9 ± 1.5 ^A

1.18 ± 0.20 ^AC

0.3 ± 0.3 ^E

C. selandicus

4

7

15.0 ± 1.0 ^B

8

19.6 ± 1.5 ^C

1.31 ± 0.12 ^BC

1.5 ± 0.8^AD

C. impunctatus

6

11

13.7 ± 1.0 ^A

9

15.0 ± 0.9 ^A

1.12 ± 0.10 ^A

1.9 ± 0.3^B

C. grisescens

5

10

15.2 ± 1.2 ^B

10

22.0 ± 0.7 ^D

1.46 ± 0.13^C

0 ± 0.0^E

C. kalix

5

10

12.80 ± 0.6 ^A

10

14.9 ± 1.5^A

1.17 ± 0.12 ^A

1.2 ± 0.3^ACF