Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Cryptomyrus: Name from the Greek ‘kryptos’ for secret or hidden, referring to the rarity of these fishes in collections and the Greek ‘myros’ for a kind of fish, a suffix used in the names of many other mormyrid genera.; ona: The specific epithet is a noun in apposition that honors Marc Ona Essangui, Gabonese environmental and civic activist, founder and executive director of the NGO Brainforest and recipient of the 2009 Goldman Environmental Prize, in appreciation for his efforts to protect Gabon's equatorial forests and wetlands (Ref. 113668).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 8.0 - 8.0. Tropical; 24°C - ? (Ref. 113668)
Africa: Nyanga River and Ngounié River in Gabon (Ref. 113668).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.8 cm SL male/unsexed; (Ref. 113668)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 21; Anal spines: 0; Anal soft rays: 24; Vertebrae: 41. Diagnosis: Cryptomyrus ona is readily differentiated from its sole congener, C. ogoouensis, by the following characteristics: having an anal-fin origin located only just in advance of the dorsal fin, first dorsal ray above anal-fin ray 3 vs. first dorsal-fin ray above anal-fin ray 7; a deep caudal peduncle, 6.0-6.8% of standard length vs. 5.1%; and lobes of caudal fin markedly shorter than caudal peduncle, vs. nearly as long as peduncle (Ref. 113668).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Sullivan, J.P., S. Lavoué and C.D. Hopkins, 2016. Cryptomyrus: a new genus of Mormyridae (Teleostei, Osteoglossomorpha) with two new species from Gabon, West-Central Africa. ZooKeys 561:117-150. (Ref. 113668)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00251 - 0.01261), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
