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Fig. 4 | BMC Ecology and Evolution

Fig. 4

From: Phylogenetic history influences convergence for a specialized ecology: comparative skull morphology of African burrowing skinks (Squamata; Scincidae)

Fig. 4

PCA plots showing the relationship between cranial shape and A genus and B substrate; and mandibular shape and C genus and D substrate. Lines connect each species point to the group mean. For the genus PCAs, the pictured crania, from top to bottom and left to right, are Mochlus sundevallii (MCZ R-28682), A. plumbeus, Scelotes gronovii (CAS 173306), Typhlacontias brevipes (CAS 224004), and Typhlosaurus vermis (CAS 196406). The pictured jaws are A. plumbeus, T. vermis, Scelotes sexlineatus (CAS 206813), and T. brevipes. For the substrate plots, the specimen closest to the group mean is shown. The crania are Scelotes arenicola (MCZ R-21292), Acontias gracilicauda (CAS 147466), Scelotes kasneri (CAS 207016), and Acontias kgalagadi (CAS 125809). The jaws are A. gracilicauda, Acontias litoralis (CAS 206810), Sepsina alberti (CAS 263923), and Sepsina copei (CAS 263921)

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