The Hyphessobrycon diancistrus lives in the benthopelagic, freshwater environment.
anal-fin hooks in Hyphessobrycon diancistrus and found it to possess a great number of club cells. In ostariophysans club cells are linked to the production and release of alarm substances (Pfeiffer 1977), and, in some cases, possibly pheromones (Weitzman et al. 2005). More