2011
DOI: 10.1163/18759866-08002004
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Structure and function of the feeding apparatus in the common musk turtle Sternotherus odoratus (Chelonia, Kinosternidae)

Abstract: The present study examined the kinematic patterns of initial food uptake, food transport, pharyngeal packing and swallowing in the common musk turtle Sternotherus odoratus. These data are supplemented by morphological descriptions of the skull and the hyolingual complex. Although the hyoid is mainly cartilaginous, S. odoratus still use exclusively hydrodynamic mechanisms in prey capture and prey transport. The tongue is relatively small, with weakly developed intrinsic musculature. We propose that the elastici… Show more

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Cited by 13 publications
(23 citation statements)
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“…However, most extant turtles cannot generate such strong suction flows and only compensate (“gulp”) the bow wave that otherwise would push small to moderately sized food items away from the fast approaching head. These species finally fix and grasp prey with the jaws (see Lauder & Prendergast, 1992 ; Lemell, Beisser & Weisgram, 2000 ; Aerts, Van Damme & Herrel, 2001 ; Natchev et al, 2009 ; Natchev et al, 2011 ). We consider the latter plesiomorphic behaviour for extant turtles.…”
Section: Discussionmentioning
confidence: 99%
“…However, most extant turtles cannot generate such strong suction flows and only compensate (“gulp”) the bow wave that otherwise would push small to moderately sized food items away from the fast approaching head. These species finally fix and grasp prey with the jaws (see Lauder & Prendergast, 1992 ; Lemell, Beisser & Weisgram, 2000 ; Aerts, Van Damme & Herrel, 2001 ; Natchev et al, 2009 ; Natchev et al, 2011 ). We consider the latter plesiomorphic behaviour for extant turtles.…”
Section: Discussionmentioning
confidence: 99%
“…One such mechanism-related feature is found in the hyoid corpus, or the central element of the hyobranchial apparatus. Suction-feeding jawed vertebrates have an ossified hyoid corpus that rigidly integrates with the right and left hyoid horns, in whales [50], turtles [19], [24], [42], [51], and sharks (TT pers. obs.…”
Section: Mechanically Important Hard-tissue Featuresmentioning
confidence: 99%
“…2). It was specifically stated [24] that the absence of an ossified hyoid corpus in Sternotherus impaired the suction ability of this turtle. This is mechanically expected because the hyoid corpus is the central element of the hyobranchial apparatus that maintains its integrity and rigidity.…”
Section: Mechanically Important Hard-tissue Featuresmentioning
confidence: 99%
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“…Turtles also possess a "hard palate" consisting of expanded palatine and maxillary bones, fusing in the midline just posterior to the choanae and articulating with the cranial base posteriorly (Gaffney,'79). They utilize their palates as a food-processing and prey handling surface (Natchev et al, 2010(Natchev et al, , 2011Parham and Pyenson, 2010). Additionally, ancient turtles such as Kayentachelys, Proterochersis, Proganochelys, and Odontochelys possessed marginal as well as palatine teeth (Li et al, 2008;Davit-Beal et al, 2009), which were lost during evolution, possibly due to changes in diet or habitat.…”
mentioning
confidence: 99%