Reuniclus

Rankurusu is a -type Pokémon introduced in Generation V. It is a version exculsive for Pokemon White according to the official site. It is classified as the Amplification Pokemon and has the abilities Dust-Proof, which makes the pokemon unnaffected from whether conditions, and Magic Guard. Rankurusu is a version exclusive to Pokemon White. It knows the moves Reflect, Skill Swap, Light Screen, Psywave and Dizzy Punch.

Appearance
Rankurusu's pale-colored inner body is encapsulated within a blob of a translucent, green gel-like substance. It seems somewhat like a cell, or a gelatinous blob of ectoplasm. Inside the substance, its large, rounded head, with a striation down the length of it, is visible, as well as its torso and stubby feet, which looks strikingly similar to a skeleton. There are tapered, pale partitions of the inner part of its body, not connected to the other parts of the inner body and seemingly "floating" in the gel simulacrum; the way it forms around the portions give the impression of Rankurusu possessing horns or ears. There are several protrusions of the body off the main blob of the substance, forming arm-like appendages sporting three "fingers" at the tips and a curving feature of the gel below Rankurusu's waist. Within the arm-like extensions are several rounded portions, of which, like Rankurusu's "ears", seem to be "floating", with the farthermost shapes, colored yellow and then red, being most spherical.

Trivia

 * Rankurusu could be a combination of 乱 ran disorder, and ホムンクルス homonkurusu "homunculus", seeing as how it's a small humanoid figure in the jelly.
 * It was officially revealed during the August issue of CoroCoro along with other six pokemon on July 11th 2010.