Well, we do have the Sirloin. Which unless I am mistaken, is part fish? Or seal? I'm unsure. For seasonal animals to base this seasonal on you could probably google something around the lines of;

"Summer Solstice (Mythical) Animals"

This could refer to any animals who have a breeding period around the summer solstice? Or myths based around it.

This thread has also given me an idea. A lot of people are saying,

"We need another Christmas seasonal."

But there are a awful lot of Christian based seasonals. Maybe if Res were to release a Winter solstice creatu as well? And then they can be corresponding pets, you could also probably build alot of plotlines and such for seasonal events. 

I think a fish hybrid with something unusual, like maybe some sort of mamal, would be rather of nice. Like maybe a literal take on a sea monkey. X3 I know they're actually supposed to be shrimp like creatures, but I think an aquatic, fish-like monkey would be great. XDDD

Saru, theres already a sirleon, which is half Mammal half aquatic fish thing, so that'd be like a repeat :/

But maybbe Staru should judge it, not me lol. 

I like the fish-key idea. ;)

Support this. We have to go so long without seasonals!!

Now I know what it is, and there's a very clear reason for why I didn't know earlier. From Wikipedia:

"Except at the equator (where all days have 12 hours of daylight) and in the polar regions (where daylight is continuous for half of the year), the day on which the Summer Solstice occurs (in June in the Northern Hemisphere, in December in the Southern Hemisphere)"

I live just a few degrees below the equator xD

Another problem I've thought of is that it's at two different times depending on which hemisphere you live on. So there's a complication with Aussies and stuff. I'm actually against this idea merely because I don't think everyone will share the joy of the holiday

Sorry guys xD

Rena: well Everything as its flaws. like the flaws of the easter creatu. not everybody celebrates easter.

The solistice in general sounds pretty good. But everything has its flaws.