Good link. Looks like it pulls the data from http://www.cemla.com .
Its interesting as it appears to cover 1914.
I have a ship record with them on it departing Buenos ares in 1914 ( http://trees.ancestry.com/tree/27635148/person/5029966484 - deseado ship record ) but it doesn't appear to be in this database. Or its misspelled as seems to happen a lot with eastern euro names. The inbound usa records list their Buenos Ares ship record.

Let me dig into the Zvingaite ladies...