Patna rice Patna rice Patna rice, a variety of the species "Oryza sativa", and one of the varieties of long-grain white rice, is extensively cultivated in the Indo-Gangetic plains, in and around Patna, capital of Bihar state, India. Patna rice is known for its elongated kernel with grain length greater than 6 mm, and has been used as staple food by the local people for thousands of years. Sometimes, Patna rice is also called "Parimal" rice locally. This mildly flavoured rice comes from the Bihar region of the Ganges plains. It has a robust, long and narrow, opaque grain that keeps its
Rissoina oryza Rissoina oryza Rissoina oryza is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae. The height of the small, white shell attains 2 mm. The shell has an oblong-ovate shape. It is solid, smooth, and shining, The spire is moderately elevated, and rather rapidly tapering. The apex is obtuse. The 6-7 whorls are flatly convex. The body whoprl is rather large, and slightly compressed beneath. The suture is faintly impressed and broadly margined beneath. The rather large aperture is oblique and has a sub-ovate shape. The thick peristome is dilated. The columella is