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Table 1 Morphometric and meristic data for the specimens of Zameus squamulosus deposited at the Colección Nacional de Peces of the Instituto de Biología, Universidad Nacional Autónoma de México (CNPE-IBUNAM). Measurements are expressed as a percentage of total length (% TL)

From: New record of Zameus squamulosus (Chondrichthyes: Squaliformes: Somniosidae) in the Southern Gulf of Mexico

Measurements

CNPE-IBUNAM 14608

CNPE-IBUNAM 14608

CNPE-IBUNAM 16547

CNPE-IBUNAM 16547

Total length

330

290

270

250

Precaudal fin length

80.3

73

76

80

Prenarial length

1.5

1.3

2.1

2.8

Preoral length

8.4

8.2

8.8

9.6

Preorbital length

5.4

6.2

6.2

6.8

Head length

22.7

24

22.2

24

Prepectoral fin length

23

24.4

24

26

Prepelvic fin length

60.6

60.3

59.2

60.6

Prefirst dorsal fin length

43.7

49.3

38.8

40

Presecond dorsal fin length

65.6

65.5

61.1

66

Interdorsal width

19

16

17.4

18.4

Pectoral fin–pelvic fin space

26

26.5

25.18

32

Eye length

4

3.4

3.7

3.2

Eye height

2.4

2.7

2.9

2.8

Mouth length

 

3.7

4.2

4

Mouth width

7.2

6.8

7.4

7.7

Upper labial furrow length

3.6

3.4

3

3.6

Lower labial furrow length

2.1

2

2

2.4

First gill slit length

2.1

1.9

2

2

Fifth gill slit length

2.1

2.2

2.3

2.1

Head height

5.4

7.5

5.1

7.6

Head width

12.1

11.3

11.1

12.8

Trunk height

11.4

12

8.8

10.8

Trunk width

10.6

10.3

9.6

10.4

Girth

36.3

32.7

22

32

Pectoral fin length

11.5

12.7

10

11.2

Pectoral fin base length

5.1

5.1

4.8

4.8

Pectoral fin height

5.7

5.5

5

4

Pelvic fin length

11

10

13.3

8

Pelvic fin base length

3

2.7

2.5

2.6

Pelvic fin height

5.4

4.8

4.4

2.4

First dorsal fin length

9

9.3

9.2

7.6

First dorsal fin base length

4.8

5.5

5.1

4.4

First dorsal fin height

3

3

3.7

3.6

Second dorsal fin length

7.6

9.1

8.1

8

Second dorsal fin base length

7.2

6.8

7.7

6.8

Second dorsal fin height

5.1

5.1

4.8

3.6

Dorsal caudal fin margin

21.8

22.7

20

18.8

Upper tooth counts

44

47

46

46

Lower tooth counts

37

40

40

40