. The development of the skull of Emys Lutaria. Chelonia (Genus); Reptiles. atlas 4-—1. Fig. 15 Cross section through the extreme posterior end of the occipital con- dyle of an embryo slightly younger than that represented in the preceding figures, showing the chorda dorsalis () incompletely surrounded by the occipital con- dyle which is here hypochordal in position. X 15. Figs. 16 to 19 A series of four cross sections through the ethmoidal region of an embryo having a carapace mm. long. The series is from anterior to pos- terior. In figure 16, on the right side, a cartilaginous nodul
. The development of the skull of Emys Lutaria. Chelonia (Genus); Reptiles. atlas 4-—1. Fig. 15 Cross section through the extreme posterior end of the occipital con- dyle of an embryo slightly younger than that represented in the preceding figures, showing the chorda dorsalis () incompletely surrounded by the occipital con- dyle which is here hypochordal in position. X 15. Figs. 16 to 19 A series of four cross sections through the ethmoidal region of an embryo having a carapace mm. long. The series is from anterior to pos- terior. In figure 16, on the right side, a cartilaginous nodule is Ij'ing in contact by its median surface with the pila supraglandularis (). In figure 17 the pila supraglandularis has extended ventrally and fused with the lamina terminalis anterior {). The thickening of the paries nasi to form a concha is greatest in figure 19. X 15. 772. 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
