[None. Introduction as follows:]
This addition to the thirty genera of Capitellidae (Hartman, 1947, 1959, 1965) is based upon specimens collected in a study of southern California sandy beaches (Patterson, 1974) funded by the Sea Grant Office of the Department of Commerce Grant #2-35227. The author wishes to express thanks for permission to use the material. Dr. Dale Straughan provided funds for the study. All specimens are deposited in collections of the Allan Hancock Foundation (AHF), University of Southern California.