. Bulletin of the Natural History Museum Zoology. EAR REDUCTION IN IGUANIAN LIZARDS Tympanocryptis Oriental agamids 167 X. cephalus Ceratophora X. lineata T. intima. 5b 6b 4 3 1ab 5c Lvriocephalus Cophotis^ L parviceps. 2b T. adelaidensis T. diemensis. 6b 4 1b Aphianotis- 3 2b Primitive oriental agamids- P. vlanaali P. theobaldi P. roborowski P. axillaris 6a \ /6a 5b \ / 5b Most species. 6b 5c P arabicus^ P maculatus. Fig. 2 Pattern of ear reduction in Tympanocryptis (Agamidae). and in the clade made up of Aphaniotis, Lyriocephalus, Cophotis and Ceratophora (Agamidae). Abbreviations: l. depres
. Bulletin of the Natural History Museum Zoology. EAR REDUCTION IN IGUANIAN LIZARDS Tympanocryptis Oriental agamids 167 X. cephalus Ceratophora X. lineata T. intima. 5b 6b 4 3 1ab 5c Lvriocephalus Cophotis^ L parviceps. 2b T. adelaidensis T. diemensis. 6b 4 1b Aphianotis- 3 2b Primitive oriental agamids- P. vlanaali P. theobaldi P. roborowski P. axillaris 6a \ /6a 5b \ / 5b Most species. 6b 5c P arabicus^ P maculatus. Fig. 2 Pattern of ear reduction in Tympanocryptis (Agamidae). and in the clade made up of Aphaniotis, Lyriocephalus, Cophotis and Ceratophora (Agamidae). Abbreviations: l. depressor mandibulae moves forwards, a - slightly, b. extensively. 2. Tympanum covered, largely -a, entirely - b; 3. columella robust. 4. tympanum disappears. 5. buccal opening to the middle ear reduced, a - somewhat, b - strongly, c - very small or absent. 6. Pars inferior of extracolumella reduced, a - somewhat, b - strongly or absent. 5a 4 P mystaceus 2b Bufoniceps- Cophosaurus Holbrookia. Trapelus- 4 2b Callisaurus- 3 2a lb 1a Fig. 3 Pattern of ear reduction in Phiynocephalus and its relatives (Agamidae). For abbreviations see Fig. 2. Fig. 4 Pattern of ear reduction in phrynosomatid sand lizards (Phrynosomatidae). For abbreviations see Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Natural History Museum (London). Andover : Intercept
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