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.
Gare de Lyon is one of the six main railway stations in Paris, France. It was built in 1895-1902 to replace the old landing stage of Lyon and It was named after the city of Lyon, which is a stop for many long-distance trains departing from the station, most of which operating towards the south of France.n general most services run to the south and east of France (TGV Trains to Southern France, the Alps, Basel in Switzerland and Rome in Italy). Gare de Lyon also hosts regional trains and the RER. Click here to book your transfer from Orly Airport to Gare de Lyon.