. Bulletin - United States National Museum. Science. Figure 3.—Head of Pituophis sayi affinis: a, From the side; 6, from above. smooth border. In the accompanying drawing of the hemipenis of sayi sayi (fig. 6), the organ has been dissected open, and the muscle removed from the posterior end. The dentition is as follows: Mandibular teeth 16 to 22, decreasing slightly in size posteriorly; maxillary teeth 14 to 18, sohd and without a diastema, decreasing slightly in size posteriorly; palatines 7 to 12, slightly smaller than the mandibular and maxillary teeth, but rela- tively stouter; pterygoids
. Bulletin - United States National Museum. Science. Figure 3.—Head of Pituophis sayi affinis: a, From the side; 6, from above. smooth border. In the accompanying drawing of the hemipenis of sayi sayi (fig. 6), the organ has been dissected open, and the muscle removed from the posterior end. The dentition is as follows: Mandibular teeth 16 to 22, decreasing slightly in size posteriorly; maxillary teeth 14 to 18, sohd and without a diastema, decreasing slightly in size posteriorly; palatines 7 to 12, slightly smaller than the mandibular and maxillary teeth, but rela- tively stouter; pterygoids 6 to 14, smaller than the palatines and de- creasing in size posteriorly. The fundamental type of pattern throughout the genus is spotting. Most forms bear a median dorsal series of large dark, more or less quadrangular spots on a light ground. In most cases thereMs one or more additional alternating series of spots on either side. In lineati-. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
