Fall of the Republic of Venice with Napoleon. On 10 June, the heir to the Duchy of Parma, Louis of Bourbon, and two days later, Napoleon invaded the Romagna, which belonged to the Papal States; on 23 June the Pope had to accept the French occupation of the northern Legations, allowing the French to occupy the port city of Ancona on the Adriatic Sea. The appearance of French warships in the Adriatic led Venice to renew the ancient decree that prohibited the entry of foreign fleets in the Venetian Lagoon, and informed Paris of that. Flotillas and fortifications were established along the lagoon's shores with the
Sea urchins of the Gulf of California Sea urchins of the Gulf of California The sea urchins of the Gulf of California live between the coasts of the Baja California Peninsula to the west and mainland state of Sonora, Mexico to the east. The northern boundary is the lateral band of land with the remains of the Colorado River Delta, and the southern is the Pacific Ocean. The Gulf of California is known for its high diversity and endemism of biota. One type of marine animal that can be found in this region is the sea urchin (class echinoidea, in the phylum echinodermata). One echinoid, "Mellita granti",