Based off a piece of McQuarrie concept art, the Sharalians were super close to making it into Canon, but were ultimately cut from their intended appearance within The Clone Wars animated series, now lost to obscurity...

Cloddograns seem to be a species who are grotesque both inside and out, garnering a reputation for both their perpetually diseased appearances and equally reprehensible personalities.

The Ensel possess quite the unique origin, almost becoming a much more well-known species via live action, alongside technically being considered Canon thanks only to an incredibly obscure appearance.

Considered the most intimidating "Iskalonian" among the amphibious refugee group known as "the School," the Graygls could scare of deep sea predators but were still no match for the might of the tyrannical Galactic Empire...

A mysterious, ancient race of intergalactic vagabonds who have long forgotten their homeworld and history, yet elements from it like their musical aptitude and conniving lifestyles linger.

A three-armed, four-eyed sentient species hailing from the Unknown Regions or beyond who were all but wiped out and transformed into "Shadow Lurker" apparitions at the hands of a malicious Sith artifact.

This species is known for their aptitude for digging, as well as the ability to literally sniff out various diseases, making them incredible "healthcare professionals."

A widely varied species of sentient fungi who may very well have come to our galaxy from a distant realm.

Being distinctive sentient avians appears to have been both a blessing and a curse, with the Livorno being almost completely wiped from the face of the galaxy thanks to the discriminatory efforts of the Galactic Empire...

A rather distinct amphibious species who are distant relatives of the much more iconic Mon Calamari (and not so distant neighbors with the Xexto species)!