You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Development of Pharyngeal Dentition in the Cobitid Fishes, Misgurnus anguillicaudatus and Cobitis biwae, with a Consideration of Evolution of Cypriniform Dentitions
Vol. 1987, No. 1 (Feb. 11, 1987), pp. 208-213
Stable URL: http://www.jstor.org/stable/1446055
Page Count: 6
You can always find the topics here!Topics: Dentition, Larvae, Bones, Larval development, Juvenile stages, Marine fishes, Phylogeny, Fish, Evolution, Gulfs
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Development of pharyngeal dentition was observed for two cobitid fishes, Misgurnus anguillicaudatus and Cobitis biwae. Only one tooth ankylosed to the bone in the earliest dentition, whereas two teeth on the following replacement wave ankylosed at the anterior and posterior positions. The dentition then develops with alternate sweeping of even and odd replacement waves. The teeth increase posteriorly in number by one during the odd replacement wave. Number of tooth positions in the major row is established by the early juvenile period in cyprinids, but increases throughout the juvenile period in cobitids. Shapes of pharyngeal bones seem to be reflected in the dentitions. Observations of development lead to the conclusion that the cobitid and cyprinid dentitions were not derived one from the other, and that the cobitid dentition is more closely related to catostomid dentition than to cyprinid dentition.