Dutch colonisation of the Guianas control of the three colonies (Demerara, Berbice, and Essequibo) west of the Courantyne River. These three colonies became British Guiana. After 1815, there were five Guianas, referred to by their dominant languages: Spanish Guayana (Venezuela), British Guiana, Dutch Guiana, French Guiana, and Portuguese Guiana (Brazil). The colony that remained was part of the Kingdom of the Netherlands until 1975, when it became independent as the Republic of Suriname. Dutch Guiana covered the majority of the Guiana Shield, with its borders ranging from the Orinoco Delta in the northwest, the eastern banks of the Caroní River in the southwest, to the
Guiana dolphin name "Guiana dolphin" has been suggested by Flores and colleagues. The Guiana dolphin ("Sotalia guianensis") is frequently described as looking similar to the bottlenose dolphin. However, it is typically smaller, at only up to 2.1 m (6.9 ft) in length. The dolphin is coloured light to bluish grey on its back and sides. The ventral region is light grey. The dorsal fin is typically slightly hooked, with a triangular shape. The beak is well-defined and of moderate length. Guiana dolphins are very inconspicuous, and considered a "shy" species. It does not bow ride on boats and normally swims away from