no its has a bill
The platypus's mouth is variously referred to as its "bill" or "snout".
The snout of the platypus and the echidna are not similar at all. The platypus has a broad, flat bill which is equipped with sensitive electroreceptors which enable it to detect electrical impulses given out by tiny invertebrates underwater. The echidna has a long, pointed snout which it will push into termite mounds to get to termites, but it has no electroreceptors.
Snout shaped like a duck's bill.
The platypus's snout is called a bill. It is not the same as a "duckbill"; nor is it ever called a "duckbill".
The platypus is classified in the family Ornithorhynchidae because this latin term means "bird-like snout", which refers to the platypus's bill.
The French word for platypus - ornithorynque - is derived from the platypus's scientific name of Ornithorhynchus anatinus, the first word of which means "bird-like snout". This is because the platypus has an unusual snout which, to the average person, may appear to be like a duck's bill, even though it is very different.
The scientific name of the platypus is Ornithorhynchus anatinus. The 'Ornithorhynchus' part means "bird-like snout". This is in reference to the platypus's unusual bill.
This description fits the platypus.
... there is no such creature matching this description ....
That is correct. The platypus's bill is not hard like the beak of a duck or any other bird. It is flexible, and made out of a leathery skin, so it feels soft and leathery to the touch.
The platypus is a carnivore: it mostly feeds on annelid worms, insect larvae, freshwater shrimp and crayfish (known in Australia as "freshwater yabby") that it digs out of the riverbed with its snout or catches while swimming.