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Inability of the Kidney of the Hagfish to secrete Phenol Red

Naturevolume 199page713 (1963) | Download Citation



THE kidney of the hagfish (Myxine glutinosa L.) consists of about 70 extraordinarily large Malpighian corpuscles, which through short ducts are connected with the ureters. The latter extend from the level of the heart to the cloaca. It is assumed that two ureters (Wolffian ducts) carry out functions which in higher vertebrates are performed by kidney tubules. This theory is based on an alleged histological resemblance of the hagfish ureters to renal tubules1. However, it has not yet been confirmed electron-microscopically that the resemblance is a real one and not only superficial.

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  1. 1

    Gerard, P., Zool. Exp. Gen. Paris, 83, 37 (1943).

  2. 2

    Smith, H. W., Bull. Georgetown Univ. Med. Center, 13, 4 (1959).

  3. 3

    Forster, R. P., and Hong, S. I., J. Cell. Comp. Physiol., 51, 259 (1959).

  4. 4

    Sperber, I., Pharmacol. Rev., 11, 109 (1959).

  5. 5

    Fänge, R., and Krog, J. (in preparation).

  6. 6

    Fänge, R., and Berg Justesen, N. P., in Biology of Myxine, Oslo (in the press).

  7. 7

    Holm, J. F., Zool. Jahrbuch., Abt. Anat. Jena, 10, 277 (1897).

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    Present address: Institute of Zoophysiology, University of Gothenburg, Sweden


  1. Institute of Zoophysiology, University of Oslo

    •  & JOHN KROG
  2. the University Institute for Experimental Medical Research, Ullevael Hospital, Oslo

    •  & JOHN KROG


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