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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Procatopodidae (African lampeyes) > Procatopodinae
Etymology: gemma:Name 'gemma' from the ancient Green word meaning 'precious stone' or 'gem', in reference to the body scales appearing iridescent and diamond shape, reminiscent of a tiny gem.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
Dorsale zachte stralen (totaal) : 9; Anale zachte stralen: 13 - 14. This species is distinguished from its congeners by the following set of characters: a pattern of iridescent, diamond-shaped, light blue spots in scale centres, especially evident below mid-longitudinal series on posteroventral portion of flank, and larger iridescent blue blotches on dorsum, creating an irregular reflective pattern on body of the males; median fins yellow to hyaline, dorsal and anal fins with six to eight dark grey stripes perpendicular to fin rays basally and posteriorly, with light blue iridescence basally; dorsal with light blue distinct margin; anal with dark grey margin; caudal fin with four to five dark grey stripes perpendicular to fin rays; dorsal and anal fins hyaline with irregular brown stripes, fin tips with narrow light blue margin, caudal hyaline without markings in females; and in males: body depth at pelvic-fin origin 25.6-27.4, anal-fin base length 18.7-19.6, head depth 79-83, head width in % of its depth 83-87, caudal peduncle length in % of its depth 111-114 (Ref. 138275). Body shape (shape guide): elongated; Cross section: oval.
This species inhabits a turbid remnant pool in the seasonal Lubule River, 1-2 m wide, with margins overgrown by grass (Ref. 138275).
Nagy, B., 2025. Review of Cyprinodontiform fishes in the Upper Congo drainage with descriptions of four new species of seasonal Nothobranchius (Nothobranchiidae) and a new species of 'Lacustricola' Lampeye (Procatopodidae) in South-Eastern DR Congo. Ecology and Diversity 2:10006. (Ref. 138275)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
