Original description as Labidochromis joanjohnsonae:
- Johnson, Donald. 1974. "New cichlids from Lake Malawi, including descriptions of two new species". Today's Aquarist. v. 1 (1); pp. 12-17 (crc00120)
- Melanochromis exasperatus Burgess, 1976, with type locality at Likoma Island, Lake Malawi. Determiner: Stock, 1976
Conservation: Labidochromis joanjohnsonae is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (VU) vulnerable (2006).