Snifflehunch

The Snifflehunch is a presumed Tracker Class (based on behavior) dragon introduced in How to Train Your Dragon 2. Its name was revealed on Facebook for a new  Rise of Berk update.

Official Description
"These inquisitive Dragons don't know the meaning of personal space! They'll get as close as they can to sniff out if someone's friend or foe. This Dragon's fire-sneeze attack will melt through anything that gets in its way!"

- Dragons: Rise of Berk

Development
The Snifflehunch was created using a modular system to mix and match preset body parts onto different dragons. It was created from the same base that was used for the Snafflefang, Thunderclaw, Shovelhelm, and three other unknown dragons.

Egg
The Snifflehunch's egg is very colorful, It's mostly green, with blue and orange spots. It has several lobs on top of it with red tips. The Snifflehunch's egg tapers towards the top.

Hatchling to Adult
Snifflehunches are typically colorful dragons, mostly in yellow, orange, blue, and green. Their faces are similar to that of the Rumblehorn, though rounder and less thick. They possess a rounded horn atop their noses, and a ledge under their chin. They have round spines that go from their head down to their tail. Their backs form a hump shape, contributing to their name.

The Snifflehunch's base body structure is virtually identical to several other dragons in the second film.

Titan Wing
Titan winged Snifflehunches are dark blue and purple with white spots on their backs and wings. The edges of the wings are also white. Their horn on the snout is now sharper as well as their wings. They grew lots of spines on their back as well as bigger talons on the wings. Their head is a bit longer than before.

Sense of Smell
As a Tracker Class dragon, this dragon has a keen sense of smell, and the unusual ability to tell if a dragon is friend or foe via sniffing it.

Fire Type
The Snifflehunch has a 'fire sneeze' described to be able melt anything. This implies that the fire is extremely hot, but also somewhat uncontrollable.

Behavior and Personality
Snifflehunches are curious and friendly dragons. They often greet new dragons and people by sniffing them in enthusiasm. Though Snifflehunches do this out of good will, occasionally, the dragons get disturbed and feel uncomfortable. This was displayed in the second film when a Snifflehunch went to sniff Toothless. Startled, Toothless growled at it.

How to Train Your Dragon 2
First appearing in this movie, numerous Snifflehunches were seen in Valka's Mountain. The most notable one, perhaps, is Pestbud, an inquisitive Snifflehunch that greeted Toothless. Invading his privacy, this dragon stuck his nose under Toothless' wing, startling him. Toothless returned his greeting with a growl.

Dragons: Rise of Berk
The Snifflehunch's name was first revealed in this game. Rise of Berk also two individual, Pestbud, from the second film, and Sneezlehunch.

Trivia

 * The Snifflehunch is the fourth movie dragon to not have its name revealed until later. The others are the Thunderclaw, Windstriker, Thornridge, Shovelhelm, and Threadtail.
 * The Snifflehunch is one of the most colorful dragons, along with the Deadly Nadder and the Death Song.
 * The name Snifflehunch and its behavior to constantly sniff curiously leads to it being presumably in the Tracker Class.
 * When taking a look at a Snifflehunch and a Rumblehorn next to each other, their overall body shape and head shape are roughly similar just the Rumblehorn is much more "beefy" and considering the fact that both are in the Tracker class it is fair to say the both are closely related.
 * During some scenes in How to Train Your Dragon 2, a Snifflehunch is seen with what appears to be some form of sail on its back. This could imply that the Snifflehunch somehow can extend its back to create this sail-like structure.
 * Another explanation could be that it was an animation error. Multiple dragons are seen throughout the movie with similar sail-like structures on their backs where their spines should be
 * Yet another explanation is that the dragon with a sail is a variation of the regular Snifflehunch.