. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. « B Fig. 17. Xcoreomys australis Anieghino. no. P 13164, x 5; ^, L]M2; B, LMo. phylogenetic significance. The development of a neoloph, of various types, seems to be characteristic of the caviomorphs, and to distinguish them from the hystricomorphs, where the fifth crest appears to be a mesoloph. The primary difference in pattern between the premolars and the molars is that, in the latter, the hypocone is a large and inde- pendent element, which it is not in the premolar. This presum- ably means that the teet
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. « B Fig. 17. Xcoreomys australis Anieghino. no. P 13164, x 5; ^, L]M2; B, LMo. phylogenetic significance. The development of a neoloph, of various types, seems to be characteristic of the caviomorphs, and to distinguish them from the hystricomorphs, where the fifth crest appears to be a mesoloph. The primary difference in pattern between the premolars and the molars is that, in the latter, the hypocone is a large and inde- pendent element, which it is not in the premolar. This presum- ably means that the teeth represent specializations of something like those of Platypittamys, and that, in the premolar, the proto- cone grew backward along the lingual margin of the tooth, taking over the functions of both protocone and hypocone in the molars. An additional difference is tliat the main valley of the premolar. 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
Size: 1837px × 1360px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
