... Scorpaeniformes within the Euteleostei [15] The hatching enzyme was identified from ovarian fluids of the black rockfish, and the cDNAs and the genes for the hatching enzyme were cloned from the embryos Results ... secreted from hatching gland cells to digest the chorion In this study, we observed the embryo hatching of the ovoviviparous black rockfish Sebastes schlegelii, which is a member of the Scorpaeniformes ... embryos, ovoviviparous fish embryos grow and hatch within the maternal body and are then delivered from the body At the time of ovoviviparous fish hatching, it has been unclear whether the hatching enzyme...