When I visited Berlin Zoo for the first time in 2000, I still saw 6 species in the crocodile hall: False gharial, Spectacled caiman, Cuban, New Guinea, Nile and "Orinoco" crocodile. In 1987 15 species were kept, but afterwards the collection was fortunately reduced as a consequence of lethal aggressions. During my visit in 2000 I saw one specimen with a large bite (I think it was the caiman).
Several crocodile specialists agree that the "Orinoco crocodile" recently kept there was just an American crocodile (okay, still a rare species in Europe). The only places where I saw real Orinoco crocodiles were several zoos in the southern U.S.
The False gharial went to Tierpark Berlin in 2003, the New Guinea crocodile to a private holder in 2006 (after being exhibited at Tierpark for a few months), the Orinoco/American and the Cuban crocodile probably died. At the moment only Nile crocodile and Spectacled Caiman are left (apart from the Dwarf caiman which is kept in a normal terrarium).
Tierpark Berlin still keeps a considerable collection, including a large False gharial, Chinese alligators and breeding Dwarf crocodiles. The largest collection in Germany is meanwhile kept at the aquarium in Zella-Mehlis, where 10 species can be found, including Siamese, Morelet's and Mugger crocodile.