. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 150 bulletin: museum of comparative zoology narial openings as suggested by Williston). The palatal dentition appears to have been of the primitive pattern, with a tusk-pair on each lateral element. The choanae are remarkable, elongated struc- tures. Their anterior ends are directly beneath the external nares; their posterior continuation suggests an "attempt" to construct a false palate of a sort; possibly the anterior part of the choanae may have been membrane-covered in life, and the actual opening may ha
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 150 bulletin: museum of comparative zoology narial openings as suggested by Williston). The palatal dentition appears to have been of the primitive pattern, with a tusk-pair on each lateral element. The choanae are remarkable, elongated struc- tures. Their anterior ends are directly beneath the external nares; their posterior continuation suggests an "attempt" to construct a false palate of a sort; possibly the anterior part of the choanae may have been membrane-covered in life, and the actual opening may have been to the rear as an improvement in air breathing in a water 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
