Inositol Brilliant Green Bile Agar (Plesiomonas Differential Agar) is recommended for selective isolation of Plesiomonas shigelloides and Aeromonas species from faeces and food stuffs. P.shigelloides grow in the presence of brilliant green and are also resistant to bile salts. Bile salts and brilliant green inhibit all gram-positive bacteria and most of the gram-negative bacilli, other than coliforms respectively. Meso-inositol is a fermentable carbohydrate source in the medium while neutral red is the pH indicator. Plesiomonas shigelloides grows luxuriantlly on the media