Archoophoran turbellarians. A pair of anterior marginal or dorsal tentacles may be present. Intestine elongate and centrally located, with many highly branched diverticula. Plicate pharynx either an anteriorly directed tube or pendant from the roof of the pharyngeal cavity. Only marine species.
Source: Prudhoe, 1982.
The following taxa of this order occur in the region:
Suborder Acotylea
Superfamily Cestoplanoidea
Family Cestoplanidae
Genus Cestoplana
Superfamily Planoceroidea
Family Leptoplanidae
Genus Leptoplana
Genus Notoplana
Genus Stylochoplana
Family Planoceridae
Genus Planocera
Superfamily Stylochoidea
Family Cryptocelididae
Genus Cryptocelis
Family Plehniidae
Genus Discocelides
Family Polyposthiidae
Genus Cryptocelides
Genus Polyposthia
Suborder Cotylea
Family Euryleptidae
Genus Cycloporus
Genus Eurylepta
Genus Oligocladus
Genus Prostheceraeus
Genus Stylostomum
Cestoplana rubrocincta
Cryptocelides loveni
Cryptocelis equiheni
Cycloporus maculatus
Cycloporus papillosus
Discocelides langi
Eurylepta cornuta
Leptoplana schizoporellae
Leptoplana tremellaris
Notoplana atomata
Oligocladus sanguinolentus
Planocera folium
Polyposthia similis
Prostheceraeus vittatus
Stylochoplana maculata
Stylostomum ellipse