This is a very tricky question to answer, but arguably the Bajii (Yangtze River Dolphin) would be up there.
Other than that the Saola (Pseudoryx nghetinsis) has only been seen via a camera trap and in bushmeat markets.
Other contenders would include the African Golden Cat, Ethiopian Mole Rat, Attenborough's Short-Beaked Echinda and the Snow Leopard. I'm sure there are a multitude of arboreal tropical murids that would be very difficult to spot in the wild without the use of traps.
Of course the above are all mammals. There are dozens of reptile species that only exist on remote island cliffs and the same can be said about various insect and bird species (i.e. the Fijian Petrel)
A group of foxes is called a skulk. They are known to be solitary and elusive animals, often sneaking around in the shadows.
A snark is a fictional animal featured in Lewis Carroll's poem "The Hunting of the Snark." It is depicted as a mysterious and elusive creature that is difficult to define or capture, adding to the poem's sense of whimsy and nonsense. The term "snark" has since been used colloquially to refer to something elusive or hard to pin down.
The clouded leopard is a unique and mysterious animal, known for its beautiful fur pattern and agility. It plays an important role in its ecosystem as a top predator. Many people find the clouded leopard to be a great animal due to its elusive nature and striking appearance.
The millipede has the most limbs of any animal, with up to 750 legs.
i am 2. the iberian lynx is becoming extinct because of fur coats. its scientific name is Lynx Pardinus and there are about only 110 left in the world . they are critically endangered.
Discuss why good governance has been elusive in most african countries
Even its not official, uruguay's national animal is a bird, it is the Rufous Hornero that is all over our countryside.
I - Almost Got Away with It 2010 Most Elusive Criminals was released on: USA: 2 October 2012
Elusive means sneaky, rare, or hard to find. Elusive people or things are often hiding and difficult to see or catch. For example, a spy, a rare animal, or bigfoot could be considered elusive.
Elusive Butterfly was created in 1966.
Elusive Isabel was created in 1909.
This book is very elusive, it is one of a kind.
The duration of The Elusive Corporal is 1.75 hours.
The duration of The Elusive Pimpernel is 1.82 hours.
My Elusive Dreams was created in 1967-06.
Elusive Isabel has 273 pages.
Despite our best efforts, the elusive raccoon went untrapped all summer. Cogent thought remained elusive for the morning.