Paraceroea

"this Chordate is a flatworm like creature that lays it’s eggs inside anomalocarids armor folds and then the juveniles when ready kill their host and burst out into adult forms."

-A Dear Friend

Paraceroea is a parasitic descendant of Pikaia, and the first submission from A Dear Friend. It is also possibly the most advanced submission from Generation 1.

It appears like a flatworm or earthworm in appearance, with dark grey stripes going along the body. They parasitize Anomalocaridids.

The eggs float in the water for about a week, and when the larvae hatch, they seek an Anomalocaridid to parasitize. Once found, they swim into the gills of their host. The bigger the Paraceroea species, the bigger the Anomalocaridid. The largest ones parasitize Baleeocaris.

Trivia

 * A Dear Friend came up with the design because no one else selected a chordate to submit.