Theocorythium

Shell with 2-part cephalis: (1) upper sphere and (2) one or 2 lobes directly beneath or slightly lateral to the upper sphere. Single apical horn. Abdomen subcylindrical with numerous terminal teeth and sometimes with subterminal teeth scattered irregularly over the distal half of the abdomen. Cephalic lobes form a neck structure between the upper cephalis and thorax, a feature peculiar to this genus.