The thecae are deep, cylindrical, with a conical base, there are 10-12 long and narrow opercular valves. The gonangia are small, conical, with a short distal digitiform process. The included sporosac ...

In one of Dr. Allman's new genera nearly allied to Aglaophenia (Cladocarpus) the groups of gonangia are not inclosed in corbulæ, but are borne on the sides or at the base of special protective ...