Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 34 (1927) > Annual Issue
Document Type
Research
Abstract
In the past there have been many papers presented which have given evidence pointing to a probable origin of air-breathing vertebrates from certain physostomous fishes. The animals to which these papers have referred, apparently have some organ capable of supplementing respiration in times of need. Several of the Dipnoi and Ganoids have been credited with this adaptation and therefore have been responsible for the transition of a large number of vertebrates from water to land. Such a change gives rise to the need for organs capable of respiring atmospheric air.
Publication Date
1927
Journal Title
Proceedings of the Iowa Academy of Science
Volume
34
Issue
1
First Page
335
Last Page
337
Copyright
©1927 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Potter, George E.
(1927)
"The Swimbladder as a Respiratory Organ in Lepidosteus,"
Proceedings of the Iowa Academy of Science, 34(1), 335-337.
Available at:
https://scholarworks.uni.edu/pias/vol34/iss1/118