Abstract
A bilateral gynandromorph specimen of Nephrops norvegicus (L.) from the Irish Sea is described. Previous records of gynandromorphs within the Nephropidae are discussed, together with other types of sexual abnormality found in N. norvegicus. It is suggested that the bilateral asymmetry is due to a chromosomal aberration in the first embryonic cleavage division, and that further division is determinate. In addition, it appears that the androgenic gland in N. norvegicus, Homarus gammarus and H. americanus does not have the same mode of action as that reported for Orchestia gammarella and O. cavimana.
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Communicated by J. H. S. Blaxter, Oban
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Farmer, A.S. A bilateral gynandromorph of Nephrops norvegicus (Decapoda: Nephropidae). Mar. Biol. 15, 344–349 (1972). https://doi.org/10.1007/BF00401394
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DOI: https://doi.org/10.1007/BF00401394