Nautilus



 Grimm Classification: Frilled Shark (mostly)

 Grimm Title: Nautilus

 Threat Ranking: S

 Appearance: Nautiluses are large sea creatures. They are somewhat serpentine in appearance, powerful muscles apparent beneath the black skin. The upper jaw is covered with the signature mask of Grimm, large burning eyes set in the armor. They possess a wide mouth that can open wide enough to consume smaller ships whole. Inside are sets of back-turned teeth to ensnare prey. Six thick fin-like gills sit just behind the head, several tentacles extending from each one. White plates appear on the sides, fading away to thing toward the tail.

 Ability:  Additional Notes:   A Nautilus prefers cold or deep waters, placing it in the polar oceans or too deep to be of concern. They do not go out of their way to attack and are solitary creatures. They may, however, mistake larger ships as prey. An exception is during particularly violent storms, where they are known to gather and become violent. Here you can see their gills spread out in warning, the tentacles violently shaking. It is not uncommon to see their glowing red patterns and eyes far in the depths of the sea, allowing you to avoid them if bad weather seems imminent. It is known to eat aquatic Khorkhoi.
 * Strength: The danger of them lies in their position in water.   They can move quickly despite their size, diving deep and resurfacing without notice.   Their speed comes from a large expulsion of water from the gills, allowing a quick charge.
 * Weakness: Their eyes are massive targets.   Their mouths are often open, allowing for projectile attacks into their bodies.

 Trivia: This mostly just referenced sea serpents for this. I threw in a Kraken/Giant Squid element with the tentacles and water propulsion. These traits could also be sited to the genus Nautilus. Nautilus is also the name of Captain Nemo’s submarine in 20,000 Leagues Under the Sea, which was thought to be a sea monster.