Description of Urospora

Urosporid gregarines, mucron simple; small; gamont large (up to 1 mm), longitudinally striated; syzygy lateral, often between gamonts of unequal size; oocysts ovoid, with a tail ; some species covered with bristles; oocysts with 6 to 8 sporozoites; in annelids, sipunculids, nemertines, and echinoderms; type species- U. nemertis.