Generic diagnoses are given for
Chone (syn.
Megachone) and
Euchone. Redescriptions and additions to the descriptions, in part based on study of the types, are provided for some species,
Chone aurantiaca (new combination),
C. duneri (syn.
C. bimaculata),
C. ecaudata (syn.
C. minuta),
C. eniwetokensis (new combination),
C. gracilis,
C. infundibuliformis (syn.
C. teres),
C. magna,
C. mollis,
C. paucibranchiata,
Euchone alicaudata,
E. analis,
E. capensis,
E. elegans,
E. papillosa, and
E. rubrocincta. Three new species,
Chone albocincta,
Chone veleronis, and
Euchone velifera are described. The number of lobes of the collar is rejected for the Sabellidae as a character on the generic level; the diagnostic value of the palmate membrane is discussed.