This month newsletter we give you a bird's eye view of the endangered shells of the Gulf of Mannar area - of which Rameswaram is a part. This is in continuation with our green Rameswaram series on bio-diversity of the region. Apart from the shells or the molluscan species the coral reef also play a very crucial role in the safeguarding of the marine fish populations. It has been documented that in this biodiversity hot-spot fishes belonging to 27 families and 50 species live.