SEXUAL DIMORPHISM IN THE OSTEOLOGY AND MYOLOGY OF MONACANTHID FISHES

WA Museum Records and Supplements | Updated 1 decade ago

Abstract: Sexual dimorphism in the body form of some monacanthid taxa is very pronounced. The female is usually deeper bodied with a more concave snout profile than the more streamlined male. In addition. the second dorsal and anal fins of the female are generally less elevated anteriorly than those of the male. These differenees are reflected in variations of the underlying bones and muscles, particularly those adjacent to the bases of the second dorsal and anal fins. These differences are described and the reasons for them discussed.