Dwebble

Dwebble is a new /-type Pokemon introduced in Generation V. It is the pre-evolved form of Crustle evolving into him at level 34. It is used in-game by Gym Leader Arti. Dwebble is based off of a hermit crab.

The shell for this shellfish pokemon is a bit different, besides serving as a home it also serves as defense and protection. The Anime also shows that this pokemon can leave its shell or abandon their old one to make a new and bigger one. Cilan has caught one.

It may derive from "dwell" and "pebble".