The development of the ethmoidal region of Ascaphus truei (Stejneger)
Date
1982-12
Authors
Baard, E. H. W. (Ernst Hendrik Wolfaardt)
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
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.
No Afrikaans abstract available
No Afrikaans abstract available
Description
Thesis (MSc)--University of Stellenbosch, 1982.
Keywords
Ascaphus truei Stejneger, North Western America, Frogs, Amphibians, Frog with a tail, Leiopelma, Acquatic life, Terrestrial life, Dissertations -- Zoology, Theses -- Zoology, Tailed frog, Skull, Nasal sacs, Diverticulum medium, Jacobson's organ