Eucyrtidium anomalum

(Haeckel)

Cephalis spherical, partly submerged into the large, assymetric, conical, thin-walled thorax. Abdomen and 2-3 postabdominal segments thin-walled, with pores in longitudinal rows. Maximum shell width: 80-100 µm.

Ref.: Petrushevskaya (1971a).