Echobelle is the evolved forme of Chimecho, a Bell Pokemon.
Chimie Evo
(found here, made by 'deidara-fuuka' on DeviantArt)

Information text: 'This Pokémon's melodic cries echo musically within its hollow body. If threatened they increase their cries' pitch to dangerous levels.' It evolved due to harmonic synchronization at a Chimecho ceremony.  It is so powerful that its cries can cause tremors.  Echobelle live in mountains where it can lead groups of Chimecho and Chingling great distances, singing melodies along the way.

Specie: Bell Pokémon
Type: Psychic/Fairy
Height: 4'01
Weight: 3.8 lbs
Pre-Evolution: Chimecho, Chingling
Evolution: Holding Shell Bell at Lv, 38
Items for Evolution: N/A
Area, Region: N/A