Original description:
- Oliver, Michael K. & P.V. Loiselle. 1972. "A New Genus and Species of Cichlid of the Mbuna Group (Pisces: Cichlidae) from Lake Malawi". Revue de Zoologie et Botanique Africaines. 309-320 (crc00109) (abstract)
Type species: Iodotropheus sprengerae Oliver & Loiselle, 1972 (original designation).
Described species included (3):
valid: 2 synonym: 1- Iodotropheus sprengerae Oliver & Loiselle, 1972 (valid)
- Iodotropheus stuartgranti Konings, 1990 (valid)
- Iodotropheus declivitas Stauffer, 1994 (synonym)
Potentially undescribed species (1):
- sp. 'londo' (undescribed)