1. Turn the seastar over to its ventral or oral surface (underside). 2. Locate the mouth in the center of the central disc. Find the ring of oral spines surrounding the mouth. 3. Find the groove that extends down the underside of each arm. This is called the ambulacral groove.. Locate the central disc in the center of the seastar. Locate the small, round hard plate called the madreporite on top of the central disc. Water enters through this into the water vascular system.
Lyon or (more archaically) Lyons (UK /liËËÉn/ or /ËliËÉn/; French pronunciation: [ljÉÌ], locally: [lijÉÌ]; Arpitan: Liyon [ÊjÉÌ]) is a city in east-central France, in the Auvergne-RhÃ´ne-Alpes region, about 470 km (292 mi) from Paris and 320 km (199 mi) from Marseille. Inhabitants of the city are called Lyonnais.
It is believed that both of these towns derive their names from old Celtic tongues spoken in Gaul â see Lugdunum (Lyon), and Lyons-la-Foret. ForÃªt The surnames Of ireland By MacLysaght maclysaght Describes lyons having its roots as a surname from The County galway name OF O, Ã³ laighin. meaning greyhe English surname Lyons can be traced back to the Norman French, when it was introduced after the Norman Conquest in 1066. It could originally have been an individual's nickname, from the Old French lion, signifying a brave or fierce warrior, or even an individual's name like Leo.