Panaqolus nocturnus

Panaqolus nocturnus, known as the dusky panaque, is a species of small catfish in the family Loricariidae found in the Santiago and Pastaza River basins in the upper Napo drainage in tropical South America. This species reaches a maximum standard length of 14.4 cm (5.7 in).^[1][2]

Panaqolus nocturnus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Loricariidae
Genus:	Panaqolus
Species:	P. nocturnus
Binomial name
Panaqolus nocturnus (Schaefer & D. J. Stewart, 1993)