11. Digestion begins in the center of the manubrium , which communicates with the four radial canals and the ring canal. 12. This disk also allows motion between the sternum ( manubrium ) and itself during protraction and retraction of the scapula. 13. These were entangled and immobilised by the marginal tentacles, eventually being wrapped round and enclosed by the mobile manubrium . 14. The eggs develop in gonads of female medusae, which are located in the walls of the manubrium ( stomach ). 15. The manubrium joins with the body of the sternum, the clavicles and the cartilages of the first pair of ribs. 16. These organisms have a well-developed manubrium , a proboscis-like structure bearing the mouth and four long oral arms. 17. The gonads are beside the radial canals, except in " Limnocnida ", where they are on the manubrium . 18. Budding sites vary by species; from the tentacle bulbs, the manubrium ( above the mouth ), or the gonads of hydromedusae. 19. In the center of the underside of the bell is a mobile appendage called the manubrium which somewhat resembles an elephant's trunk. 20. This is because the manubrium normally angles posteriorly on the body of the sternum, forming a raised feature referred to as the sternal angle.
