title: Early embryology of the fathead minnow Pimephales promelas Rafinesque.
mesh_terms: D000818:Animals; D001921:Brain / Q000196:embryology; D003530:Cyprinidae / Q000196:embryology*; D005123:Eye / Q000196:embryology; D005260:Female; D005306:Fertilization; D006257:Head / Q000196:embryology; D010063:Ovum / Q000254:growth & development; D011247:Pregnancy