Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Episemion: Greek, epi = over, in front + Gree, semeion, -ou = mark, signal (Ref. 45335); krystallinoron: Named after the Monts de Cristal, to which it is endemic (Ref. 57728).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: border area between Gabon and Equatorial Guinea (Ref. 57728).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 14 - 16. Scales are cycloid: body and head are entirely scaled, except on ventral surface of head; frontal squamation is of G-type; scales on mid-longitudinal series 27-29 + 2-3 on caudal base (Ref. 57728). Episemion krystallinoron has a unique combination of male color characters: the dorsolateral body color of adult males is metallic blue-green, they have three or four more or less regular horizontal rows of red dots onn sides of body, beginning just behind head, and the unpaired fins contain blue to blue-green dots (Ref. 57728).
Occurs in fast flowing rivers of 4-5 m wide and 0.80-1 m deep; sandy bottoms and no aquatic vegetation; found amongst overhanging terrestrial vegetation (Ref. 57728).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sonnenberg, R., T. Blum and B.Y. Misof, 2006. Description of a new Episemion species (Cyprinodontiformes: Nothobranchiidae) from northern Gabon and southeastern Equatorial Guinea. Zootaxa 1361:1-20. (Ref. 57728)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00472 - 0.02669), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).