In an examination of 21 fishes from Atlantic Ocean - Continental Portuguese Coast and North African Coast, 6 were parasited by nematodes. The species of fishes and the nematodes recovered are as follows: 3 samples of Solea solea in one of them we recovered Contracaecum magnum; 3 samples of Batrachoides didactylus in one of them we ecovered Contracaecum magnum and Cucullanus hians; 7 samples of Pagellus bogaraveo, two of them we recovered Contracaecum bidentatum; 7 samples of Beryx decadactylus, two of them recovered Contacaecum seriolae. Contracaecum magnum is for the first time reported infecting both Solea solea and Batrachoides didactylus. Contracaecum seriolae is for the first time reported in Beryx decadactylus and Pagellus bogaraveo are the news hosts record for Cucullanus hians and Contracaecum bidentatum respectively.