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MORPHOLOGY
Author(s) -
Philipp Koehn
Publication year - 1938
Publication title -
medical journal of australia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 131
eISSN - 1326-5377
pISSN - 0025-729X
DOI - 10.5694/j.1326-5377.1938.tb110164.x
Subject(s) - citation , computer science , information retrieval , library science
A. A. ABBIE (Journal of Anatomy, July, 1937) discusses the major subdivisions of the Marsupialia, with especial reference to the position of the Peramelidre and Crenolestidre. The presence of a fasciculus aberrans in the anterior commissure of the brain in Diprotodontia, and its absence in the Polyprotodontia, provide an exact distinction between the two great groups of marsupials. In the vast majority of cases the state of the dentition constitutes an accurate guide to the condition of the anterior commissure. The teeth, therefore, supply the most valuable external feature upon which to base any classification of the Marsupialia. The condition of the pes does not present such a fundamental criterion. The condition of the anterior commissure is the surest guide to classification if doubt arises in the examination of recent material. The author concludes that those living Foramen of Magendie.