Cyprinidae

Danionella priapus

Danionella priapus

Conical projection between pelvic fins

• Tropical
• Regional distribution
• Freshwater fish
• South Asia
• Small
• Tropical fish

Danionella priapus is a species of Danionella endemic to India. It is sexually dimorphic and, like other species in the genus, possesses a skeleton with fewer bones than the closely related zebrafish. However, it has a number of distinguishing features which differentiate it from others in the genus, with the most notable example being the conically projecting genital papilla between the funnel-shaped pelvic fins of males.