• Morphogenesis of the foetal membranes and placentation in the Indian molossid bat,Chaerephon plicata (Buchanan)

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      https://www.ias.ac.in/article/fulltext/anml/098/03/0149-0166

    • Keywords

       

      Development; foetal membranes; placentation; bat; Molossidae

    • Abstract

       

      InChaerephon plicata the definitive amnion is formed by the development of folds. The yolk-sac splanchnopleure undergoes progressive collapse and folding until it ultimately remains as a free gland-like structure with hypertrophied endodermal and mesodermal cells. It acts as an active haemophagous organ after limb-bud stage. An extensive chorio-vitelline placenta, which is formed during early gestation is progressively abolished and replaced by the chorio-allantoic placenta. Two kinds of chorio-allantoic placenta are formed—a diffuse endotheliochorial placenta, which persists until about midpregnancy, and a definitive discoid placenta which is mesometrically located, labyrinthine and haemomonochorial.

    • Author Affiliations

       

      A Gopalakrishna1 Y D Pendharkar1 N Badwaik1

      1. Department of Zoology, Institute of Science, Nagpur - 440 001, India
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