Mitra, S. “On the First Record of the Pen Shell, <i>Pinna incurva< I> Gmelin (Mollusca : Bivalvia : Pteroida : Pinnidae) from Digha Coast of West Bengal”. Records of the Zoological Survey of India, vol. 109, no. 2, June 2009, pp. 99-109, doi:10.26515/rzsi/v109/i2/2009/159011.