Copidognathus newelli Viets, 1956

Report associated with sponges: This species was reported (cited as Copidognathus arcticus) from Arctic Ocean, 60 miles southwest of Barrow, in Alaskan sponges, bryozoans, and sand at depth of 76.2 m (250 feet) (Newell 1951b).

Remarks: This species was also reported among shells, sand, muddy sand and gravel (Newell 1951b).