Physical 

Clam Worms have numerous parapodia (bristly appendages used in locomotion, respiration, and sensation) along their bodies. The species can measure up to 6 inches in length, and are usually a brown to reddish color.

Habitat

N. species are hardy, and can survive salinities from 1 to 25 parts per thousand. They are found in the lower intertidal zone to depths of over 350 feet in burrows of sand bonded with mucus.

 

Feeding 

N. species are opportunistic feeders; they scavenge algae, invertebrates, and anything else in the area on the bottom.