Examples from the Web for ovoviviparous
Coenogonous: oviparous at one season of the year, ovoviviparous at another, as in Aphididae.
The oyster is ovoviviparous; that is, it retains its eggs until they are partly matured.The Sea-beach at Ebb-tide|Augusta Foote Arnold
Some of the dinosaurs may have been ovoviviparous, like some modern serpents.Through Nature to God|John Fiske
Ovoviviparous: when living young are born from eggs which are hatched in the body of the parent.
Descending a little lower, we come to the oviparous and ovoviviparous tribes.The Religion of Geology and Its Connected Sciences|Edward Hitchcock