. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. PARSONS: CIIOANAE OF THE EMYDINAE 123 the conclusions cannot be considered absolutely reliable. The lack of any obvious function suggests that the most complex pattern, that of a papilla plus flap, may be primitive, and that the evolutionary picture within the emydines is one of loss, CUORA (BO CYCLEMYS (A) HIEREMYS (B) TERRAPENE (C) EMYS (C) NOTOCHELYS (B) CHINEMYS (B) GEOCLEMYS (A) ANNAMEMYS. MORENIA (A) HARDELLA (A) DEIROCHELYS (C) EMYDOIDEA (C) GRAPTEMYS (B) MALACLEMYS (BCD) BATAGUR Fig. 4. Dendrogram of emydine r
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. PARSONS: CIIOANAE OF THE EMYDINAE 123 the conclusions cannot be considered absolutely reliable. The lack of any obvious function suggests that the most complex pattern, that of a papilla plus flap, may be primitive, and that the evolutionary picture within the emydines is one of loss, CUORA (BO CYCLEMYS (A) HIEREMYS (B) TERRAPENE (C) EMYS (C) NOTOCHELYS (B) CHINEMYS (B) GEOCLEMYS (A) ANNAMEMYS. MORENIA (A) HARDELLA (A) DEIROCHELYS (C) EMYDOIDEA (C) GRAPTEMYS (B) MALACLEMYS (BCD) BATAGUR Fig. 4. Dendrogram of emydine relationships (modified from Loveridge and Williams, 1957). The letters in parentheses indicate the choanal con- figurations typical of the various genera, with A for the presence of a papilla, B for a flap, C for a ridge, and D for 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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