Pterophyllum leopoldi, also referred to as the teardrop angelfish, Leopold's angelfish dwarf angelfish, or roman-nosed angelfish,[1] is an angelfish species native to the Amazon River (between Manacapuru and Santarém), Essequibo River and Rupununi River.
It is distinguished from other members of the genus Pterophyllum by the absence of a pre-dorsal notch, and by the presence of a black blotch at the dorsal insertion on the 4th vertical bar.[2]
The species is frequently misidentified as P. dumerilii when it is imported in the aquarium trade.[3] P. leopoldi is the smallest of the angelfish species, reaching a length of 10cm (00inches) SL and a height of 15cm (06inches)SL.
The specific name honours King Leopold III of Belgium, who sponsored the expedition to the Amazon that collected the type of this species.[4]