Horabagrus nigricollaris is a species of catfish endemic to India. It is also known as the "Black collared catfish".[1] It is found only in the Chalakudy River in Kerala, India. This species is an inhabitant of hill streams.
H. nigricollaris is sleeker in body shape than H. brachysoma and can reach a length of 27cm (11inches) TL. This species is less yellow than H. brachysoma and the black markings extend over the neck, forming a "black collar" (hence the scientific name).[1]