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Tooth replacement in the bowfin (Amia calva — Holostei)

✍ Scribed by William A. Miller; Carolyn J. P. Radnor

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
829 KB
Volume
140
Category
Article
ISSN
0362-2525

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✦ Synopsis

Abstract

The dissected tooth bearing bones of 20 specimens of Amia calva (Pisces:Holostei) ranging from the third to tenth season have been examined radiographically and in alizarin red S stained and cleared specimens. Although forms of alternate (1:1) tooth series replacement (sensu Edmund, '60) were frequently observed, even in the youngest, immature specimens, many examples of irregular replacement were recorded. In several bones, the maxillae in particular, series with every third (2:1) or fourth (3:1) tooth replacing were seen and possible patterns of 2:2, were recorded. It is concluded that these data are not consistent with the Zahnreihen concept but support a morphogenic field concept of tooth development.

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