Lateral antennae are positioned close to the base of the foot and are characterized by their length, knobbed appearance, and excessively long setae. The ovary is elongated, slender, and ribbon-like, while auricles are absent. The dorsal antenna is notably double and very long. The corona is oblique, and a retrocerebral sac is present. These rare species are typically found in acidic waters and have a total length ranging from 750 to 1000 µm. These Notommatid rotifers have a fusiform body shape without armor, lacking a distinct constriction between the head and abdomen. The tail is rudimentary, and the foot is short and composed of two joints, each bearing two long, slender toes. The corona is weakly ciliated and oblique, devoid of auricles, and primarily used for conveying food to the mouth rather than for propulsion. The mouth is positioned slightly below the center of the corona. The antennae are elongated and tubular, with the dorsal antenna being double. The mastax is an unusual variant of the virgate type, featuring short fulcrums and large, dome-shaped rami, while the mallei are not fully developed. The epipharynx consists of four intricately shaped pieces, seemingly designed to expand the mouth opening. The piston, although bulky, is relatively weak and attached to the ventral floor of the mastax. The retrocerebral organ is well developed, and the subcerebral glands surpass the sac in length. Finally, the eyespot is located at the posterior end of the ganglion.