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. 2014 Feb 10;96(2):225–235. doi: 10.1111/azo.12070

Table 4.

Prezygapophyseal angle of mid-trunk vertebra (mean ± SEM)

Species	Habitat	Prezygapophyseal angle
Siren intermedia	Aquatic	10.8 ± 0.7^c
Amphiuma tridactylum	Aquatic	14.0 ± 2.6^abc
Necturus maculosus	Aquatic	12.6 ± 4.6^bc
Andrias japonicus	Aquatic	18.6 ± 4.0^ab
Cynops pyrrhogaster	Semi-aquatic	17.5 ± 0.5^abc
Hynobius nigrescens	Terrestrial	17.7 ± 2.4^abc
Hynobius lichenatus	Terrestrial	19.1 ± 2.3^ab
Ambystoma tigrinum	Terrestrial	21.6 ± 2.0^a

Different superscript letters indicate significant differences (ANOVA and Tukey's test, P < 0.05).