Masters Degrees (Botany and Zoology)

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Browsing Masters Degrees (Botany and Zoology) by Author "Baard, E. H. W. (Ernst Hendrik Wolfaardt)"

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    The development of the ethmoidal region of Ascaphus truei (Stejneger)
    (Stellenbosch : University of Stellenbosch, 1982-12) Baard, E. H. W. (Ernst Hendrik Wolfaardt); Jurgens, J. D.; University of Stellenbosch. Faculty of Science. Dept. of Botany and Zoology; Jacobs, Ivan
    ENGLISH ABSTRACT:This study deals with the development of the ethmoidal region of Ascaphus truei Stejneger with special interest to the development of the nasal sacs, the diverticulum medium and the Jacobson's organ. This is to gather more information regarding the phylogeny of the structures. The opinions concerning the phylogenetical migration of the Jacobson's organ, are corroborated by the development of the organ in Ascaphus. The possible origin of the diverticulum medium from the nasal end of the nasolacrimal duct also is commented on.