A report on anomalies in pelvic fin and pectoral filament of two species of genus <em>Setipinna </em>(Swainson, 1839) from east coast of India

Abstract

Present study consists the instances of anomalies in two species of genus <em>Setipinna</em> i.e. accessory pectoral filament in <em>S. phasa</em>, (Hamilton, 1822) and absence of pelvic fin in the <em>S. taty</em> (Valenciennes, 1848), collected from east coasts of India. Comparison of twenty seven morphometric measurements and twelve meristic characters of the abnormal with normal specimens confirmed abnormality. Furthermore, genetic divergence value of mitochondrial COI and 16S rRNA confirmed that both normal and abnormal specimens belong to the respective species. These abnormalities might have occurred in early stages of development. Abnormalities have affected only morphological aspects and not growth of the fish.