Yes amphipods and usually Hyperids, quite often Hyperia sp. but would have to have closer view sorry

Mysids?

In the words of @drandrewthaler.bsky.social :

How do you talk about giant isopods?

“Imagine a roly poly as big as a cat…”

www.southernfriedscience.com/now-more-tha...

Pjs you are comfortable to turn up in for a early hours fire alarm/emergency

“I draw because I find it’s a way to see the detail at a clear and small level... If I draw the animal, I understand it more. Sometimes you can see the functional characteristics and how appendages can move, explaining how the organism reacts to the environment.”

@amphipodrachael.bsky.social #NIWA

Sea spiders spinning their webs ??!?🤪🤪🤪 I guess not - broken down sponge?

According to Dr Shane Ahyong (Australian Museum) who used to live here they are “temocephalans (Platyheminthes) and live on the external surfaces – feed on passing particles, especially when the crayfish is eating and making a mess.”

Yep it looks like a talitrid - it could easily be Gazia but as is the case with most amphipods, a photo cannot get the detail enough, even a great photo like this as you have to look at mouthparts etc. nice specimen

True - be a bit scary if you could

I guess hexapoda are ok … they are placed nicely in the Crustacea. Crustacea with wings

Just about to publish a monograph of NZ crapellids

Though there is the giant ostracod in Antarctica which are just plain mental looking

Firstly, a species of this group are mollusc mimics. Mimicking Mitrella carinata which apparently doesn’t taste nice, there is a form of protection in being avoided by predators.
Also there is close morphological similarities with the Antarctic Epimeria - cool evolution happening.

Ah I always like beautiful pictures of amphipods!! However I haven’t come across this little guy before as they don’t occur in the more southerly of the hemispheres where I occur. Pleustids however are taxonomically messy which is a whole other story. See next comment for some more thoughts