The body is widened anteriorly, strongly attenuate posteriorly; without tentacles. The colour is translucent yellowish, with round reddish spots dorsally. There are six or seven tentacular eyes on each side of cerebral organ, with four further eyes in a trapeze in the posterior region of the cerebral organ; from nine to eleven cerebral eyes in each of the two elongate groups anterior to the tentacular groups. The much folded pharynx is situated centrally and is about one-third of the total body length.
The male and female genital pores are close behind the pharynx, separated from each other by an adhesive depression. The seminal vesicle is muscular; the tubular prostatic organ interpolated, with a proximal appendage; the penis-papilla is inconspicuous, situated in a long narrow penis-pocket opening into slender male antrum. The vagina is long, forming an anteriorly-directed loop; the uterine canals confluent anteriorly to pharynx in fully mature worms.
Life-cycle not known.
Living on colonies of the bryozoan Schizoporella linearis .