Pettibone, Marian H. (1963). Revision of some genera of polychaete worms of the family Spionidae, including the description of a new species of Scolelepis. Proceedings of the Biological Society of Washington. 76: 89-104.
Pettibone, Marian H.
Revision of some genera of polychaete worms of the family Spionidae, including the description of a new species of <i>Scolelepis</i>
Proceedings of the Biological Society of Washington
[None. Introduction starts as:]
In reviewing the Spionidae from the New England region, the genera have proved to be particularly difficult. The characters that have been used to distinguish some of them are questionable. The same generic names have sometimes been based on different type species and so used in dissimilar senses. Monographic works on the Spionidae by Mesnil (1896) and Söderström (1920) have added considerably to our knowledge of the group but they are in disagreement on some basic points in regard to generic names. An attempt is made in the present paper to lessen the generic confusion that has prevailed in two groups of spionids: those with branchiae and pointed prostomia, and those with branchiae and distinct frontal horns.