As you go up the tunnel, or hall after the Quest NPC Havrin you will pass a few shellscale mob's. You are looking for 4 static shellscale gaurds. There are 2 on one side looking at the other 2 opposite them. I have only seen the named spawn from the North East gaurd. It may be possible it spawns from any of the gaurds in that area, but that is the only spot I have seen the named spawn. There are a few roamers to deal with also. I would get the quest "Clearing the Waterways" from Havrin key word "fight them" prior to camping this area so you can get some bonus exp for task complete while you wait for named to pop. GL, hope this helps. Loot listed looks correct.
Edited, Dec 15th 2010 9:02pm by skytraffic



Bielaisk's Cape
Exarch's Intricate Scepter
Exquisite Animal Pelt
Exquisite Silk
Fantastic Marrow
Glowing Nebulous Dream Fragment
Greater Nebulous Dream Fragment
Lesser Nebulous Dream Fragment
Lucid Remnant of Desire
Median Nebulous Dream Fragment
Minor Nebulous Dream Fragment
Miragestone
Spongy Loam