This paper is intended to be supplementary to the paper by the same title presented at the 1927 meeting of the Iowa Academy of Science by Smiley, Ingram and Blagg.
Proceedings of the Iowa Academy of Science
©1928 Iowa Academy of Science, Inc.
Norris, H. W.
"The Organs of the Parietal Fossa in Elasmobranchs,"
Proceedings of the Iowa Academy of Science, 35(1), 341-344.
Available at: https://scholarworks.uni.edu/pias/vol35/iss1/80