This family of scaled annelids is well represented in the collection by twenty-six species, about half of which belong to
Harmothoë and related genera or, as they are here regarded because of their intergrading characters, subgenera. Twelve species are considered to have been previously undescribed; four species, previously known from Japanese waters, are recorded from the American side of the Pacific for the first time; nine are more or less well known on the shores of California or northward and one species is doubtful. It is worthy of remark that of the twelve species described as new no less than eight lack pigmented eyes, so far, at least, as can be determined without recourse to sections. These are distributed through a wide range of genera. With the exception of
Nemedia microlepida they all came from considerable to great depths (500-2,000 fathoms). One species (
Polynoe renotubulata) is further remarkable for having the nephridial papillae prolonged into slender tubes which reach far above or beyond the parapodia.
