| The lenticular process is substantially longer than the arm of the manubrium which connects the tympanum to the articular facet. |
| From the center of the subumbrella hangs the manubrium, which terminates with a mouth opening. |
| All rhinolophoids have an ossified first costal cartilage fused to the manubrium and first rib. |
| The base of the manubrium appears as a dark square in the center of the subumbrella. |
| The manubrium sometimes extends to the insertion of the third costal cartilages. |
| The right and left parts of the muscle are joined by a tendon that arises from the manubrium of the sternum. |
