According to the EAZA website, Marwell holds the following EEP and ESB:
ESB
Grey-legged douroucouli (Aotus lemurinus griseimembra)
Red-legged douroucouli (Aotus azarae boliviensis)
EEP
Grevy's zebra (Equus grevyi)
Hartmann's mountain zebra (Equus zebra hartmannae)
Eastern bongo (Tragelaphus eurycerus isaaci)
Scimitar-horned oryx (Oryx dammah)
Arabian oryx (Oryx leucoryx)
ESB
Grey-legged douroucouli (Aotus lemurinus griseimembra)
Red-legged douroucouli (Aotus azarae boliviensis)
EEP
Grevy's zebra (Equus grevyi)
Hartmann's mountain zebra (Equus zebra hartmannae)
Eastern bongo (Tragelaphus eurycerus isaaci)
Scimitar-horned oryx (Oryx dammah)
Arabian oryx (Oryx leucoryx)