Guys, are you absolutely sure the one in the upper right corner is either a Gharial or False Gharial? For one, his front doesn't look very narrow as I see it.
As far as I can see there are 4 crocs on the picture.
The one in the middle of the top could be a Cuban Croc (C. rhombifer) or - because as far as I know there are no pure Cubans in Europe - a Cuban/American Hybrid.
The one on the right was long time labeled as an Orinoco Croc (C. intermedius), but a Croc Expert told me, that it is in fact a American Croc (C. acutus) or a Hybrid between those species.
The 2 crocs on the left are with a high probability Nile Crocs (C. niloticus). But I have heard that Berlin has breed Hybrids between Nile C. and American C., so there is a chance that one of these guys is such a Hybrid.
There are still many they haven't tested but based on the results they've gotten so far I think it is fair to suspect that there will be many more hybrids but also some pure ones. For example Paignton got their pure Cuban from Skansen Aquarium. Skansen still has Cubans and their pair has bred many times with the offspring exported to several different zoos.
