France, French Guiana, unexplored area on the border between the heart of the Amazonian Park of French Guiana and the Trinidad National Nature Reserve, end of the dry season, scientific multidisciplinary Haut Koursibo inventory mission, specimens of Rivules with blindfold or Rivets of Agila (Laimosemion agilae) under study by an ichthyologist in a temporary aquarium at the base camp