Abstract
The Family Syngnathidae includes seahorses and pipefishes, diagnosed by the presence of a breeding pouch in the males, bony rings covering the body, and fused edentule jaws. Most species are marine fishes, but it includes some exclusively freshwater forms. There are 11 known species of pipefishes along the Brazilian coast, highlightening Pseudophallus mindii (Meek and Hildebrand 1923) whi…