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Tetrapod Characteristics of the Pituitary Gland of Calamoichthys calabaricus

Nature volume 217, page 473 (1968)Cite this article

Abstract

Calamoichthys and the better known Polypterus comprise the most primitive group of living ray-finned fishes, and are regarded as palaeoniscid relics1–4. Some of the earliest reports on the morphology of the fish pituitary gland concern this group5–7. In re-evaluating the morphology of the pars distalis in primitive actinopterygian fishes, a portal vascular system between the inferior surface of the infundibulum and the sinusoids of the pituitary gland was discovered in Calamoichthys.

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Authors and Affiliations

  1. Department of Pathology, University of California, School of Medicine, San Francisco, California

    MICHAEL D. LAGIOS

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  1. MICHAEL D. LAGIOS
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LAGIOS, M. Tetrapod Characteristics of the Pituitary Gland of Calamoichthys calabaricus. Nature 217, 473 (1968). https://doi.org/10.1038/217473a0

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