Journal of the Marine Biological Association of India

Volume 40 Issue 1&2

A study on certain secondary sexual characters of a marine perch, Priacanthus hamrur (Cuv. & Val.).

Tessy J. Mandy and N.D. Inasu

A clear sexual dimorphism is present in Priacanthus hamrur (Cuv & Val.). Females are more than hvo times larger and heavier than the males of the same age group. Lateral line in male is curved downward in front like a hook: while it is straight in female. Opermlar spine is more sharply marked in males. The dorsal anterior profile of the head in female has a more downward slope. 'Ihe soft rays in the posterior half of the dorsal fin in female are more filamentous and they protrude out from the upper margin of the fin. Inter orbital diameter is wider in female.



Date : 30-12-1998