Elk are a species of large mammal found in Skyrim.
The Elytra are large, insect-like creatures, indigenous to much of the Shivering Isles. Although there is a marked color difference between the Mania variety and the Dementia variety, they're otherwise identical. Some Elytra secrete a glowing green substance known as Felldew, prized as a powerful, addictive drug.
 Emperor Crab
Emperor Crabs were gigantic crab-like creatures once native to Vvardenfell, contemporary with the early settled Chimer. The species died out long before 3E 427. The most famous Emperor Crab was called Skar, and its giant shell was incorporated into the city of Ald'ruhn. "Under Skar" was the manor district of the settlement, and housed the leaders of Great House Redoran as well as several merchants. Ald'ruhn was destroyed during the Oblivion Crisis by the Daedric armies of Mehrunes Dagon.