Allmänt

Males of the new species are easily distinguished from H. stenosoma (Boulenger, 1901) based on their adult color pattern, i.e. black vertical bars on the anterior flanks part and posterior horizontal bands on a silvery-whitish body coloration vs. an anterior flank color pattern of black blotches of variable number, size and shape and posterior horizontal bands. Males and females of the new species are further distinguished by their longer lower pharyngeal jaw (37.6–38.2% HL vs. 27.8–32.5% HL) with a characteristically curved keel, which is straight or only slightly curved towards the tips in H. stenosoma. The new species has on average fewer gill rakers on the first gill arch than its only congener (33–37 vs 35–43).

Litteratur

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Koblmüller, Stephan & Nina Duftner, Cyprian Katongo, Harris Phiri & Christian Sturmbauer. 2005. "Ancient Divergence in Bathypelagic Lake Tanganyika Deepwater Cichlids: Mitochondrial Phylogeny of the Tribe Bathybatini". Jounal of Molecular Evolution. no. 60; pp. 297-314

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Konings, Ad. 1988. "Tanganyika Cichlids". Verduijn Cichlids, Holland. pp. 1-272

Smith, Mark. 2007. "Lake Tanganyika Cichlids (2nd Edition)". Barrons Educational Series. 94 pp