. The development of the skull of Emys Lutaria. Chelonia (Genus); Reptiles. Fig. 20 Cross section tlirough the posterior portion of the orbito-temi)or^J region of an embryo having a carapace mm. long, showing the pterygoideum {pt.) extending medially beneath the arteria carotis interna () and the ramus palatinus n. facialis {) to form the sulcus cavernosus of the adult pterygoi- deum. A thin osseous lamella maj' also be seen along the ventral crest of the planum basale which extends further forward and fuses with theparasphenoi- deum in the i-egion of the fenestra hypophyseos. X


. The development of the skull of Emys Lutaria. Chelonia (Genus); Reptiles. Fig. 20 Cross section tlirough the posterior portion of the orbito-temi)or^J region of an embryo having a carapace mm. long, showing the pterygoideum {pt.) extending medially beneath the arteria carotis interna () and the ramus palatinus n. facialis {) to form the sulcus cavernosus of the adult pterygoi- deum. A thin osseous lamella maj' also be seen along the ventral crest of the planum basale which extends further forward and fuses with theparasphenoi- deum in the i-egion of the fenestra hypophyseos. X 15. Fig. 21 Cross section through the otic region of an embryo having a carai)ace length of 7 mm. showing the columella auris (col.) in its relation to the first vis- ceral cleft (1) to the ramus hyomandibularis n. facialis (), and to the chorda tympani (). The processus interhyalis () in its relation to the cartilago Meckelii () is shown. X 15. Fig. 21 a A portion of figure 21 mure highly magnified. X 35. 773 JOURNAL OF MORPHOLOGY, VOL. 23, NO. 4. 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 Kunkel, B. W. [s. l. : s. n. ]


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherslsn, bookyear1912