- H. therapion
- External morphology
Secondary circular aboral vesicle. Size 34.9 mm x 21.6 mm.
Discovered by field collectors F. van den Berg and T. meijering, in the town of ‘s-Graveland in the Netherlands. Bearing a secondary aboral vesicle much like that of genus Deuterofenestrum, Halotrema therapion is distinguished by its larger vesicle and its cardiorid oral groove, with its angled center. This rare occlupanid was found in a rather rarified environment: inside a cotton box of a first aid kit. It is unknown if H. therapion was attached to cotton bandages themselves, or to a larger plastic containing bag. More samples and observations are clearly needed.