Help Improving "fetch" quests

[Omegaxicor]

What kind of crustacean are we looking at? I assume it's probably a crab, crayfish, or lobster considering the constrict power. In which case I really like the ability to hide. However most crustaceans aren't exactly ultra mobile on land so you may want to adjust their ability to jump, in exchange you may want to give them some sort of extra sensory power such as tremor sense if in water.

I have no idea what it is called but anyone who has played Champions of Norrath, which I thought I had mentioned but I researched it and there was little built around it, you help a Mermaid and she gives you the ability to breathe underwater, there is a crustacean underwater that is the boss.

The entire fight will be underwater, I like the idea of Tremorsense through water, now that I think about it Jump doesn't really make sense, it needs Swim and maybe a Swim speed.

http://www.wowhead.com/npc=14236#modelviewer:10+0 kinda like that but their 6 legs are bigger and more exposed