Oh, Universal undoubtedly butchered the film, and my re-cut cannot cover for missing footage (though in one version I've done I at least suggested Lucy's fate by cutting in her scream from the Melford version).

The Spanish version more closely follows the screenplay during the voyage scene, but the script is actually pretty vague. It suggests an impressionistic montage of Dracula looking menacing intercut with quick flashes of faces of terrified men and people jumping overboard. It notes that most of this should be ad libbed when the scene is shot.

As made clear in the Spanish version, Van Helsing's unfinished business at the end of the film was setting Renfield's soul to rest, but this was ignored in both the Lugosi version and at the beginning of Dracula's Daughter (though it's foreshadowed a bit in the existing film).