...well what do you know, I managed to finish one.

*cough* anyway.  thumbclawz requested a Weader alt form for her shapeshifter Parray and, since said character was a bat at the time, I decided to go with a creature known for using elongated membranes for flight...just not actual wings, of course.

Here is the Umbrellader, the Satarnian "solar serpent", nicknamed so due to how it takes in heat from below with its folding webbed horns (yes, horns, as his actual mouth is underneath), webbed claws and tail resembling its namesake and uses it for flight. This is one of the "classic" designs for a weader, one of the first sub-species to be created alongside the species itself -- and for a long time, the only one of their breed to have its dominion in the sky.

(Not sure if I'll be able to finish the last one on time...but hey, at least I got this one down.)