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Science 29 May 1964:
Vol. 144. no. 3622, pp. 1151 - 1152
DOI: 10.1126/science.144.3622.1151
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Articles

Rectal Glands of Marine and Fresh-Water Sharks: Comparative Histology

Mikio Oguri 1

1 Cape Haze Marine Laboratory, Sarasota, Florida

The rectal glands of elasmobranchs perform the function of salt-excreting organs. These glands are smaller and show regressive changes in specimens of the bull shark, Carcharhinus leucas found in fresh-water environment, compared with specimens of this and other species from a marine habitat.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Effects of environmental salinity on Na(+)/K(+)-ATPase in the gills and rectal gland of a euryhaline elasmobranch (Dasyatis sabina).
P. Piermarini and D. Evans (2000)
J. Exp. Biol. 203, 2957-2966
   Abstract »    PDF »
Hormones and Endocrine Glands of Fishes: Studies of fish endocrinology reveal major physiologic and evolutionary problems.
H. A. Bern (1967)
Science 158, 455-462
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)