Summary
The ultrastructure of the sinus gland of the fiddler crab, Uca pugnax, was investigated and found to be similar to that in other crustaceans. Five types of neurosecretory axon terminals were tentatively identified on the basis of the size, shape, and electron density of granules within the axons. Release of neuro-secretory material appears to be by exocytosis.
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References
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I would like to thank Dr. Norimitsu Watabe for his guidance and critical review of the manuscript, and Mr. Dana Dunkelberger for his technical assistance. This study was supported by a pre-doctoral fellowship from the Belle W. Baruch Foundation and by the fund from the Electron Microscope Laboratory, University of South Carolina. This work is contribution # 82 of the B.W.B.I.M.B.C.R.
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Silverthorn, S.U. Neurosecretion in the sinus gland of the fiddler crab, Uca pugnax . Cell Tissue Res. 165, 129–133 (1975). https://doi.org/10.1007/BF00222805
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DOI: https://doi.org/10.1007/BF00222805