Report of absence of pelvic fin in three species of genus Thryssa (Engarulidae, Clupeiformes) from India

Abstract

During the study on the taxonomy of Engarulidae, three abnormal specimens of genus <em>Thryssa</em> <em>viz</em>. <em>T.</em> <em>kammalensis </em>collected from Orissa, and <em>T.</em><em> hamiltoni</em> and <em>T. dayi</em> collected from Mumbai were examined. The morphological traits of abnormal specimens were compared with the normal specimens collected from the respective sampling locations. All the three abnormal specimens were lacking pelvic fin. The report is first of its kind in these three species of <em>Thryssa</em>.