Agamidae
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publication ID |
https://doi.org/10.1093/zoolinnean/zlz035 |
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persistent identifier |
https://treatment.plazi.org/id/9C298799-D27C-5A7A-FC95-F9292350AE6D |
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treatment provided by |
Plazi |
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scientific name |
Agamidae |
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Agamidae View in CoL View at ENA ( Fig. 43A, B View Figure 43 )
The dentary of Laudakia stellio is stocky and its mandibular symphysis is large and subcircular or subelliptical in medial view ( Fig. 43A View Figure 43 ). The Meckelian fossa is narrow, but widens slightly in its posterior-half ( Fig. 43A View Figure 43 ). The subdental table develops a short subdental shelf that is high in medial view. The shelf displays a low ventral expansion in its posterior portion ( Fig. 43A View Figure 43 ). A low subdental ridge is present, marking a shallow sulcus dentalis. The posterior end of the intramandibular septum is located roughly by the middle of the tooth row (by the 13 th /14 th tooth position in adults and between the seventh and eight tooth positions in juveniles). Two different tooth morphologies are present: the two anteriormost teeth are large, subpleurodont, stocky, conical and monocuspid, whereas posteriorly teeth are acrodont and triangular. The latter are closely spaced and can have small accessory cusps located anteriorly and posteriorly to the main one; their base is slightly extended towards the medial surface of the alveolar shelf. Anteriormost acrodont teeth are small, but their size tends to increase posteriorly. The largest acrodont teeth are located in the second-third of the tooth row, because the posteriormost ones are slightly smaller. In juveniles, the two subpleurodont teeth are smaller, whereas all acrodont ones are large (although an increasing trend is still recognizable towards the posterior end of the bone). Posterior processes are well developed, wide and moderately robust. They are roughly pointed and similar in both width and length. The dorsal one can be shorter than the ventral one in juveniles ( Smith et al., 2016). In medial and lateral views, only a small U-shaped notch separates the posterior processes. In posterior view, a recess similar to the one present in Chamaeleo chamaeleon (see below) is present ( Fig. 43B View Figure 43 ), but it is narrow in Laudakia stellio . The ventral margin of the dentary is slightly convex in medial view and slightly expanded in the medial direction. On the lateral surface of larger individuals, moderately deep and ventrally directed interdental grooves separate each tooth from the adjacent ones ( Fig. 43B View Figure 43 ). The maximum length of the alveolar shelf ranges from 5.7 mm to 17.5 mm and the number of tooth positions varies from ten to 19 (including the two subpleurodont ones). The number of mental foramina ranges from four to eight.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.