What are adjectives to describe crayfish beginning with the letter y?

There aren't any common adjectives that describe crayfish and begin with the letter "y."

It's possible to create some playful or unusual adjectives, like:

* Yappy: (Describing a crayfish that makes a lot of snapping noises)

* Yondering: (Describing a crayfish that wanders far and wide)

* Yummifying: (Describing a crayfish that is delicious)

However, these wouldn't be standard usage.