phreoryctidæ

from The Century Dictionary.

• A family of limicolous annelids having a slender form, usually much elongated, with sigmoid setæ in four rows of single setæ or of couples, two pairs of spermducts opening separately without spermiducal glands, and no genital setæ. It contains the genera Phreoryctes and Pelodrilus, the former found in North America, Europe, and New Zealand.