Lariosauro

Lariosauro is a cryptid reported to live in Lake Como, Italy. about 30 miles north of Milan. Como is one of the deepest European lakes, at about 410 m (1200 feet) at the deepest location.Lake Como is a glacial lake, meaning it is both very old and deep. Believers in Lariosauro point out that although the area is now home to lakes and mountains some 225 million years ago during the Middle Triassic Period, it was covered by sea. In 1830, a fossil of a reptilian creature with a short neck and flippers was discovered at Perdelo on Lake Como. An extinct type of nothosaur, the 2-foot-long fossil was classified as Lariosaurus balsami in 1847. Lake Como is also known as ‘Lario’ after its Latin name ‘Larius Lacus’ and Lariosaurus means ‘lizard from Lario’. Some have suggested that Lariosauro is its descendant and perhaps even related to Scotland’s Nessie. 
Chronology:

Lariosauro lives in Lake Como near the aptly named hamlet of Nesso on the shores of Lake Como in Lombardy. In 1946, eye witnesses allegedly reported seeing a reptile-like animal swimming in the waters of the lake. It was called Lariosauro, the same name used a century before to name a prehistoric reptile creature whose fossilized remains were found by the lake (Lariosauro balsami). In 1957, a diver in a Bathysphere reported seeing a strange beast in the lake at a depth of 328 feet, saying that it had a head like a crocodile and feet like a reptile. The monster even became the subject of a book published in 2000, ‘Il Lariosaurio’ by Giovanni Galli.

There were other alleged sightings, in Lake Como.

• In 1954 in Argegno a creature with round shaped muzzle and back and webbed paws.
• In August 1957 an enormous monster in the waters between Dongo and Musso
• In September 1957 a strange animal whose head was described as similar to a Crocodile head.
• In 2003 a giant eel, 10–12 m long, in Lecco.

Skeptic researcher Giorgio Castiglioni, who studied these cases, thinks that the animal of 1954 was an otter, the monster of August 1957 a hoax, the beast of September 1957 possibly a pike and the 2003 eel actually a group of fish swimming together.