Nephasoma (Cutlerensis) rutilofuscum (Fischer, 1916)  

This species has a rusty red color and no hooks on the introvert. Introvert is five to six times the trunk length. The posterior part of the trunk sometimes appears pointed and grooved resembling a caudal “shield” as in Aspidosiphon, but this appearance varies with degree of body wall contraction. The posterior end can also be smooth and round. Another character that distinguishes this species from other Nephasoma is the tentacle array of about 30 slender tentacles, in a dorsal zone covering an area like a fingerprint part of a human finger.