Variety of monsters in maps

Hello guys I have a question about the many different kinds of monsters in most of the maps in victoria island. You see for example in the outskirts of kerning city snails and mushrooms and even stumps, why is this?
Questing is alot harder when you only have 7 monsters of the kind you seek in the map you are in. For example I'm looking for octopusses but every map I go to that are supposed to have them also have mushrooms and snails and stumps in them, this makes it take much longer to actually kill 100 octopusses than it should be. From what I can remember every monster had its own map or were put together with other monsters that belong in the same map and cant be found all over the place. I don't see why you decided to change this aspect so can you please enlighten me on this - and if it shouldnt be like this change it fast?
Thanks in advance - I/Fieryfox

 

For those hidden-street maps I have to look on the hiddenstreet site but it seems that my memory served me wrong since I believe that the bbb.hiddenstreet site shows the monsters that used to be there in the past. Thanks, you don't have to change anything if this is how it used to be - also thanks for the tip about those hidden streets it didnt occur to me.

 

Yeh hiddenstreet got changed with it and I got confused (talking about global.hidden-street). Should be fine now, thanks.