Amphioxus lanceolatus
Arrow worm

Amphioxus on shell gravel
Image description: Amphioxus on shell gravel

Phylum Chordata
Sub-phylum Cephalochordata
Habitat Information
Rough, clean shell gravel
Species description
These transitional animals have characteristics common to both vertebrates and invertebrates. The amphioxus resembles a simple fish with its stiff dorsal fin (notochord) and its system of gill slits used to feed on small particles. It has no heart and the barest indication of a brain. Like invertebrates, the amphioxus have numerous paired excretory organs and of course, no vertebrae.
PMF archive information
Species name is listed in the PMF at the following locations:
Queens Grounds and New Grounds
Mewstone Amphioxus Grounds
Eddystone Grounds