Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)

Snakes have a highly modified feeding apparatus. However, its associated musculature is often poorly known. In order to study variation in the cephalic musculature, we dissected specimens representing 28 snake species belonging to the New World clade Lampropeltini and their Old World relatives. The...

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Main Authors: Bartosz Borczyk, Tomasz Skawiński
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/15/5/628
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author Bartosz Borczyk
Tomasz Skawiński
author_facet Bartosz Borczyk
Tomasz Skawiński
author_sort Bartosz Borczyk
collection DOAJ
description Snakes have a highly modified feeding apparatus. However, its associated musculature is often poorly known. In order to study variation in the cephalic musculature, we dissected specimens representing 28 snake species belonging to the New World clade Lampropeltini and their Old World relatives. The observed variation was analysed using a phylogenetic framework. We found that the pattern of their musculature is conservative. We observed no interspecific variation in the intermandibular muscles or in the posterior jaw adductors. Variation within the dorsal constrictors and lateral jaw adductors is relatively low. This could be explained by morphological (space) limitations and functional constraints.
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spelling doaj.art-e2e7ba6f0c5f46d2abb8b11cfa939cf32023-12-01T01:27:31ZengMDPI AGDiversity1424-28182023-05-0115562810.3390/d15050628Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)Bartosz Borczyk0Tomasz Skawiński1Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, PolandMuseum of Natural History, Faculty of Biological Sciences, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, PolandSnakes have a highly modified feeding apparatus. However, its associated musculature is often poorly known. In order to study variation in the cephalic musculature, we dissected specimens representing 28 snake species belonging to the New World clade Lampropeltini and their Old World relatives. The observed variation was analysed using a phylogenetic framework. We found that the pattern of their musculature is conservative. We observed no interspecific variation in the intermandibular muscles or in the posterior jaw adductors. Variation within the dorsal constrictors and lateral jaw adductors is relatively low. This could be explained by morphological (space) limitations and functional constraints.https://www.mdpi.com/1424-2818/15/5/628anatomycomparative morphologyevolutionmyologysnakes
spellingShingle Bartosz Borczyk
Tomasz Skawiński
Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
Diversity
anatomy
comparative morphology
evolution
myology
snakes
title Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
title_full Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
title_fullStr Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
title_full_unstemmed Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
title_short Variation in the Jaw Musculature of Ratsnakes and Their Allies (Serpentes: Colubridae)
title_sort variation in the jaw musculature of ratsnakes and their allies serpentes colubridae
topic anatomy
comparative morphology
evolution
myology
snakes
url https://www.mdpi.com/1424-2818/15/5/628
work_keys_str_mv AT bartoszborczyk variationinthejawmusculatureofratsnakesandtheiralliesserpentescolubridae
AT tomaszskawinski variationinthejawmusculatureofratsnakesandtheiralliesserpentescolubridae