The dwarf cichlid previously known as Pelvicachromis sp.
blue fin has been formally described as a new genus and species in a recent issue of the journal Zootaxa.
Cichlid expert Anton Lamboj has named the new cichlid from Guinea Enigmatochormis lucanusi, after Canadian importer and aquarist Oliver Lucanus (who collected this species and provided detailed information about the habitat).
Enigmatochromis differs from all chromidotilapiine genera in having a unique combination of: 12 circumpeduncular scales, three tubular infraorbital bones in addition to the lachrymal bone, upper lateral-line separated from the dorsal-fin base, first ray of the pelvic fin in adult females of equal length or longer than the second ray, well developed sexual dimorphism, small juveniles with 3"4 rows of irregular dark dots on the body, females with a bright blue dorsal fin, and being a pair-bonding cave breeder.
Enigmatochromis lucanusi is a monogamous, pair-bonding, cave spawner, with both parents guarding the eggs, but more intensive guarding by the female.
The author writes that the type locality is a small river with a substrate of fine gravel and a few larger rocks and boulders.
The banks of the river were densely overgrown by Anubias lanceolata, with large clusters of Bolibitis heudelotti and other ferns growing on the exposed boulders and fallen trees.
Dense clumps of Vallisneria were growing in the water. The water parameters here during the dry season were: GH 0, KH 0, pH 5.8, and temperature 24C.
For more information, see the paper: Lamboj, A (2009) A new dwarf cichlid genus and species (Teleostei, Cichlidae) from Guinea, West Africa. Zootaxa 2173, pp. 41"48.