Occurrence of Lithodoras dorsalis (Valenciennes in Cuvier et Valenciennes,1840) (Siluriformes, Doradidae) in French Guiana.

A specimen of Lithodoras dorsalis (Valenciennes in Cuvier et Valenciennes, 1840) was recently caught in an estuary of French Guiana. It is the first u nquestionable capture of the species in this area, although the type descri bed by Valenciennes was reported from Cayenne. Since the description, no ot her specimen had been collected in French Guiana. The genus and the species are mainly known from the Amazonian basin. This capture allows to validate the type locality. However, the presence of this species in French Guiana would be due to individuals. The specimen caught by Humboldt (MNHN 4156) is designated as the name-bearing paratype.