International Journal of Zoology

Research Article

Morphological Variation of Sordellina punctata (Peters, 1880) with Notes on the Phylogenetic Position of the Genus within the Family Dipsadidae (Serpentes)

Table 2

Meristic and morphometric variation of the skull of Sordellina punctata. Data expressed by mean ± standard deviation (amplitude).
Skull dataTotal ( 𝑛 = 8 )Male ( 𝑛 = 4 )Female ( 𝑛 = 4 )
Skull length (mm) 1 2 . 7 3 ± 1 . 0 2 (11.68–14.26) 1 2 . 7 1 ± 1 . 2 0 (11.68–13.07) 1 2 . 7 6 ± 1 . 0 0 (11.86–14.26)
Skull width (mm) 6 . 1 2 ± 0 . 6 1 (5.17–6.88) 6 . 3 4 ± 0 . 3 8 (5.17–6.37) 5 . 9 ± 0 . 7 6 (5.32–6.88)
Dentary length (mm) 6 . 6 2 ± 0 . 7 5 (5.24–7.74) 6 . 1 3 ± 0 . 4 6 (5.24–6.61) 7 . 1 2 ± 0 . 6 6 (5.83–7.59)
Dentary teeth 1 6 . 5 6 ± 1 . 2 6 (14–18) 1 7 . 1 2 ± 0 . 9 9 (15–18) 1 6 ± 1 . 3 0 (14–18)
Palatine teeth 1 0 ± 0 . 7 5 (8–11) 1 0 . 4 2 ± 0 . 5 3 (10-11) 9 . 6 2 ± 0 . 7 4 (8–10)
Pterygoid teeth 1 9 . 2 5 ± 1 . 6 9 (16–24) 1 9 . 8 7 ± 1 . 8 0 (18–24) 1 8 . 6 2 ± 1 . 4 0 (16–20)
Maxillary teeth 1 2 . 5 ± 0 . 8 5 (11–14) ( 𝑛 = 4 4 ) 1 2 . 7 3 ± 0 . 9 6 (13–16) ( 𝑛 = 1 5 ) 1 2 . 3 4 ± 0 . 7 6 (13–16) ( 𝑛 = 2 9 )