Original description:
- Boulenger, George Albert. 1898. "Report on the fishes recently obtained by Mr. J. E. S. Moore in Lake Tanganyika". Proceedings of the Zoological Society of London. 3:494-497 (crc00006)
Type species: Julidochromis ornatus Boulenger, 1898 (monotypy).
Described species included (6):
valid: 6- Julidochromis ornatus Boulenger, 1898 (valid)
- Julidochromis regani Poll, 1942 (valid)
- Julidochromis marlieri Poll, 1956 (valid)
- Julidochromis transcriptus Matthes, 1959 (valid)
- Julidochromis dickfeldi Staeck, 1975 (valid)
- Julidochromis marksmithi Burgess, 2014 (valid)
Potentially undescribed species (3):
- sp. 'ornatus kombe' (undescribed)
- sp. 'ornatus kapampa' (undescribed)
- sp. 'ornatus muzi' (undescribed)