Splitting Shells Quest

I noticed something odd that may or may not be a bug.

I had a low level archer accept but not complete the quest:

Quest: Splitting Shells
Level: 7
Location: Central Shroud
Quest Giver: Maurelin

I later switched a level 20'ish character and noticed that "Forest Yarzons" (Lvl 22) in Upper La Noscea had quest icons so would count towards the quest (which had specified Bog Yarzons). I did some research and found others too (ex. River Yarzon/South Shroud).

Uncertain if this is normal or not. I.e. I can finish a low level quest by slaying higher level mobs with different names in another area. Figured I'd report it just in case.

Steps:

• Have a character accept but not complete 'Splitting Shells'
• Visit other yarzon mobs that are named different and have a higher level to see they have the quest icon above them.