Are the creatures different in the NH and SH?

[loveclove]

Just curious if it works the same as the fish and bugs, or if for some reason they're all the same.
I'm in the south and this is what I got so far, but I didn't swim much yet:

seaweed
sea star
sea slug
scallop
oyster
acorn barnacle
octopus
dungeness crab
sea cucumber

Also I didn't get the short sleeve swimsuits in nooks, I guess it makes sense. Anybody got them or is it just me? Curious if you just don't get the option to buy them or if the game will only let you swim with the nook miles one in the winter.

 

[AlexSilverpen]

I would say so! Mainly because I'm in the northern hemisphere, and looking at the sea creatures critterpedia showed that some I found won't be available starting in October, if memory serves. I haven't found a sea slug, scallop, seaweed or oyster yet. However, I only went diving once with a rather full inventory so that could be part of it...

 

[JellyBeans]

I don't know if there's an official place to find this out but I think there are a few NH critters that are only available until Aug/Sep so it would make sense for there to be some differences, although I have for the most part caught the same creatures you have so far!