Large, multilobed cephalis. Thorax very short, cylindrical. Abdomen longer. Sometimes one post-abdominalsegment. Entire shell, and especially its upper section, enclosed in a thick, spongy mantle. Shell height: 80-130 µm.
Ref.: Nigrini and Moore (1979).
Kingdom Protoctista Phylum Actinopoda Subphylum Sarcodina Class Polycystina Order Nassellaria Family Cannobotryidae Genus Botryocyrtis Species Botryocyrtis scutum