Histochemistry Of the Male Reproductive Tissue and Their Secretions in The Marine Hermit Crab Diogenes Costatus (Hilgendorf- 1893)

Author(s): M. Sasi Priya, P. Kumarasamy, A. Pugazhendi , V. Ganapiriya, K. Muthukumaravel

Abstract: Histochemical analysis of the testis and vas deferens of the hermit crab Diogenes costatus reveals that the testis, PVD, MVD and DVD secrete unique secretions. These secretions are utilized in the synthesize of ampulla, stalk and pedestal of spermatophore and the seminal plasma. Histochemical characterization elucidates the possible origin of these substances from the epithelial cells of the vas deferens and the testis of D.costatus. Substance A, the secretion from the testis is a glycoprotein with basic group of proteins. The substance B & C secreted by the anterior and posterior part of the proximal vas deferens respectively. Substance D of MVD and substance E of DVD are of aromatic proteins and mucopolysaccharides in nature. The ampulla, stalk and pedestal are glycoproteins with aromatic group. Similarities in the histochemical composition of the spermatophore and the secretions of the vas deferens show the possible origin of components of spermatophore from the secretions of vas deferens.

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