Resumen de Rare Occurrence of a Partially Ambicoloured Flatfish, Brachirus orientalis (Bloch & Schneider, 1801), from Kerala, South West Coast of India
Leena Raphaelnu Thottappilly, K.V. Aneesh Kumar, Anu Thottappilly
Ambicolouration is an abnormality which occurs as pigmentation in certain areas of the fsh. The present study documents the occurrence of partial ambicolouration in Oriental sole, Brachirus orientalis (Bloch and Schneider 1801) collected from central Kerala. The ambicolouration was observed around 38% in the blind side of the fsh similar to the colouration in the ocular side restricted to the caudal area which is extended anteriorly to the dorsal and anal fns. Meristic characters did not reveal any signifcant variation with the normal fsh. No visible abnormalities in vertebrae were noticed in the ambicoloured fsh.
