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- Salamander - In The Silver Chair, there are salamanders that live far beneath the Narnian earth. They are "too white-hot to look at. But they are most like small dragons." They possess the ability of speech and are "very witty and eloquent". Some salamanders were seen assisting the dragons in destroying the fake Narnia (LB).
- Satyr - Satyrs are woodland folk who are part human and part goat. They are similar to fauns, except that they are wilder and have reddish fur, longer horns, and more goat-like characteristics. They occasionally join in dances with fauns (LWW). In the 2005 film, satyrs' faces resembles goats, whereas fauns are human from the waist up, they also have shaggy, frizzy hair and fur all over their bodies, and have thick, hardy goat legs. They can also be seen fighting with Prince Caspian in the 2008 film. In the Disney film, a Satyr is shot by Lord Glozelle when it tries to kill King Miraz.
- Sea Horse - The Sea People ride the ocean depths on giant sea horses. It is not specified to what extent which they resemble their earthly counterparts.
- Sea People - The Sea People are an aquatic race who live in the Last Sea. They are bipedal unlike the more amphibious Merpeople who live near Narnia. They have ivory coloured skin and dark purple hair. They wear no clothes although they adorn themselves with "coronets of some kind and many had chains of pearls." They are ruled by their king, whom Lucy briefly glimpses while aboard the Dawn Treader. He and his knights ride large sea horses as mounts. Their kingdom is an underwater version of Narnian society and geography (See also Merpeople). In the 2010 film, the sea people were omitted and replaced by naiads.
- Sea Serpent - A Sea Serpent attacks the ship in The Voyage of the Dawn Treader. The head of the Serpent is said to be "all greens and vermilions with purple blotches - except where shell fish clung to it - and shaped rather like a horse's, though without ears. It had enormous eyes, eyes made for staring through the dark depths of the ocean, and a gaping mouth filled with double rows of sharp fish-like teeth. It came up on what they first took to be a huge neck, but as more and more of it emerged everyone knew that this was not its neck but its body ... "
- Serpent - The Lady of the Green Kirtle transforms into a giant, poisonous green serpent when preying on innocents.
- Silenus - (See Nymph)
- Spectre - Spectres are followers of the White Witch. In folklore, spectres were malevolent ghosts. (LWW)
- Sprite - Evil sprites are followers of the White Witch (LWW).
- Squid - A squid is mentioned as a beast that lives in the Narnian Sea. (VDT)
- Squirrel - In Prince Caspian, Pattertwig the Squirrel acts as a messenger as he can travel "nearly everywhere without setting foot to ground". It is bad manners among Squirrels to watch where another Squirrel keeps his store of nuts.
- Stag - The White Stag can grant wishes to the person who catches him (LWW). A Talking Stag is captured and eaten by wicked Giants (SC). Stags can be seen fighting with the Old Narnians in the 2008 film.
- Star - Narnian Stars resemble "glittering people, all with long hair like burning silver and spears like white-hot metal" (LB). Centaurs study their dances and constellations. It is possible for a Star to become fallen from grace and set to perform a menial task until Aslan permits it to rise once more, such as Coriakin. It is also possible for a Star to become too old, such as Ramandu. In these instances, it needs to eat fire-berries from the sun to regain its youth (VDT). King Caspian marries Ramandu's daughter, named as Liliandil in the 2010 film of The Voyage of the Dawn Treader.
- Sylvan - (See Nymph)
Read more about this topic: List Of Narnian Creatures