Lachaise F, Goudeau M, Hetru C, Kappler C, Hoffmann J A
Hoppe Seylers Z Physiol Chem. 1981 May;362(5):521-9. doi: 10.1515/bchm2.1981.362.1.521.
Mature ovaries of the shore crab Carcinus maenas contain large concentrations of three major ecdysteroids which we have identified by physicochemical methods as ecdysone, 20-hydroxyecdysone and ponasterone A. The fluctuations of ovarian and blood ecdysteroid concentrations are presented in relation to the various stages of ovarian development.